October 3, 2017

Thyrsostachys oliveri (?) (CN) — BS-0816

  • Provenance: Seeds received from FMXG, southern China, as "Thyrsostachys oliveri, 大泰竹 (dà tài zhú), from Yunnan, China", coll. Mar. 2015, received 2 May and 1 July 2015 (BS-0816).
  • Photos: Album in flickr Collection Bamboos of Thailand.
  • Description: Text information and links in Google Site.
  • Seed weight: 1.2 g = 20 seeds (bare of bracts).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: 3 of 6 seeds (BS-0816) germinated by the 8th day (test 150503).
  • Comments: On 3rd October 2017, characters of the over 2 year old seedling (BS-0816) were checked. Apparently, the characters indicate a species of Gigantochloa, not Thyrsostachys. Actually, the seedling is similar to G. apus but possibly represents another species.

Seeds (BS-0816) received as "Thyrsostachys oliveri":
Seeds wrapped with bracts (left); seed with bracts removed (right)


Dendrocalamus strictus — BS-0224

  • Provenance: Unknown. Seeds received from E. P., Germany, as "Dendrocalamus minor" (BS-0224), 21 May 2009.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Seed weight: Not recorded.
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Not recorded.

Dendrocalamus strictus (BS-0224):
Eight years after sowing, it has become evident by its
culm-leaf that the species is not D. minor but D. strictus


October 1, 2017

Bambusa polymorpha (CN) — BS-0871

  • Provenance: Seeds received from FMXG, southern China, as "灰秆竹 (huī gǎn zhú) Bambusa polymorpha", collected Dec. 2015 (BS-0871).
  • Photos: Album in flickr Collection Bamboos of Thailand.
  • Description: Text information and links in Google Site Bamboos of Thailand.
  • Seed weight: Not recorded.
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Seeds placed on moistened tissue paper, 7 May 2016, atmospheric humidity >70%, the first coleoptiles emerged on the 2nd day, germination rate very low, ≈10% (test 160507).
  • Comments: Currently, the seedlings are too small for identification. The culm-leaf sheaths has developed a large bristly auricle, which could count for B. polymorpha.
Bambusa polymorpha (BS-0871):
Seeds (left), germinating seeds on tissue paper, 14th day (right)


August 2, 2017

Phyllostachys "aureosulcata 'Spectabilis'" (CN) — BS-0828, BS-0828-1

  • Provenance: Seeds received from FY, China, as "Phyllostachys aureosulcata 'Spectabilis', 金镶玉竹 (jīn xiāng yù zhú)", harvested late 2014 (BS-0828), and Nov. 2015 (BS-0828-1).
  • Photos: True Phyllostachys aureosulcata 'Spectabilis' in BambooWeb.info.
  • Seed weight: 10 g ≈ 420–450 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: (1) 10 seeds (BS-0828) soaked in clear water for less than 5 h, then laid on moistened tissue paper in transparent breeding box, from 29 May 2015, 34-36 °C daytime highs, diffuse light, 24-25 °C night lows, atmospheric humidity >70%, the first 2 seeds began to germinate visibly on the 5th day after sowing, and 8 seeds germinated by the 15th day. A germination rate of about 80% can be expected (test 150529). (2) Seeds of the new harvest (BS-0828-1) were tested in January 2016 (test 160119), and germination rates were similar.
  • Comments:
    (1) The seed supplier from China claimed these seeds to be Phyllostachys "aureosulcata 'Spectabilis'". There is no doubt that these seeds belong to the genus Phyllostachys. Whether the seeds, however, belong to the claimed species is unsupported by evidence so far. It is suspected that the seeds will turn out to be true Phyllostachys edulis.
    (2) Having checked the characters of a young seedling by August 2017, it became clear that this bamboo is not Phyllostachys aureosulcata but another species of this genus, possibly P. edulis.

Phyllostachys "aureosulcata 'Spectabilis'" (BS-0828-1): Seeds, bracts removed

Phyllostachys "aureosulcata 'Spectabilis'" (BS-0828), June 2015:
Seeds 2 g (left), germinating seeds on tissue paper, 21st day (right)


June 15, 2017

Gigantochloa wrayi (MY) — BS-0303A

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cult., 2017. A low quantity of seeds (BS-0303A) collected by D. O., 29–30 Mar. 2017, from a single flowering plant. The plant (BS-0303) obtained from Rimba Ilmu Botanical Gardens, Kuala Lumpur, Malaysia, via C. S., Sep. 2009.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Seed weight: 3.3 g ≈ 100 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: 50% of the seeds germinated by 17 Apr. 2017, which is the 17th day after sowing. 56 seeds (incl. 9 albinos) out of 100 seeds germinated by 21 Apr. 2017 (test 170331).
  • Flowering: A single, over 10 m tall plant started gregarious flowering Jan./Feb. 2017. It is expected to die after flowering. More than 10% of the spikelets developed seeds.
  • Seedling development: 3 seedlings (BS-0303B, C, and D) were selected from BS-0303A (seedlings raised from 100 seeds) and potted for further observation on 23 Apr. 2017. The remaining seedlings were handed over to ธ. บ. of Boonthammee Bamboo Garden. Furthermore, an uncountable number of seedlings grow on the ground around the flowering mother plant. They are about 3–6 cm tall by mid June 2017.

Gigantochloa wrayi (BS-0303): Flowering branch

Gigantochloa wrayi (BS-0303A):  Seeds

Gigantochloa wrayi (BS-0303A): Seed bare of bracts

Gigantochloa wrayi (BS-0303A): Germinating seeds, 17th day


April 27, 2017

Bambusa sp., Chiang Mai (TH) — BS-0347, BS-0234

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cultivated. Two plants flowered. The plants (BS-0347, BS-0234) were collected from 2 locations (farmer's gardens) in Doi Saket District, Chiang Mai Province, Thailand, Dec. 2009, and Aug. 2009.
  • Photos: Album in flickr Collection Bamboos of Thailand.
  • Description: Text information and links in Google Site Bamboos of Thailand.
  • Flowering:
    (1) BS-0347: Prior to flowering, the plant had grown to near maximum culm height and diameter. Gregarious flowering initially started with only 3 culms in late December 2014, with flowering peak in early 2015. The three culms died, and were cut off in mid 2015. New thick shoots emerged from the clump untimely in early April 2015 and developed into 20 m tall culms. The clump did not cease vegetative growth, and no signs of further flowering was observed by late October 2015, but one month later, the whole clump continued gregarious flowering, and was dead by mid to late 2016. No seeds were found in the flowers, and no seedlings were found on the ground (27 Apr. 2017).
    (2) BS-0234: Prior to flowering, the plant had grown to about two third of maximum culm height and diameter. Gregarious flowering of all culms started in January 2017 (first observed 26 Feb. 2017), with flowering peak mid-March 2017. At the end of April 2017 the clump seems to have died. No seeds were found in the flowers, and no seedlings were found on the ground (27 Apr. 2017).
  • Comments: For species identification see Google Site Bamboos of Thailand.

Bamboo (BS-0234):
Plant in Sep. 2012, prior to flowering (left),
plant of the original location, a farmer's garden in Doi Saket (right)

Bamboo (BS-0234): Flowering plant in March 2017

Bamboo (BS-0234): Flowering branch

Bamboo (BS-0234): Pseudospikelets, the anthers (yellow) with filaments (white, free) pushed out

Bamboo (BS-0347): Flowering branch

Bamboo (BS-0347): Plant in terminal stage of flowering, Feb. 2016


Schizostachyum hainanense (CN) — BS-0106

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cultivated. A single plant flowered. The plant (BS-0106) collected from Hainan, China, wild, by M.S., ca. 2008.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Comments: (1) An 8 m tall plant has been sporadically flowering in 2016 and 2017, the flowering period is probably from January to June. Not a single seed was found, no seedlings were found on the ground. The sporadic flowering has not caused any harm to the plant (27 Apr. 2017). (2) The species identity as Schizostachyum hainanense has not yet been confirmed.

Schizostachyum hainanense (BS-0106): Flowers terminating a leafy branch.


Schizostachyum zollingeri — BS-0492

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cultivated. A single plant flowered. The plant (BS-0492) obtained from B.L., Australia, June 2010.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Comments: (1) A 10 m tall plant was sporadically flowering, which perhaps started in early 2016. The flowering was first detected on 24 May 2016 when the flowering branches were already decaying. Further flowering branches in a late stage of development were detected 15 Jan. 2017. Not a single seed was found, no seedlings were found on the ground. The sporadic flowering has not caused any harm to the plant. (2) Four further plants of the same species, received from 3 different locations within Thailand, in cultivation at Baan Sammi, do not flower so far. (27 Apr. 2017).

Schizostachyum zollingeri (BS-0492): Flowering branch


April 24, 2017

Bambusa lako — BS-0919 etc.

  • Photos: BambooWeb.info.
  • Description: Text information and links in Google Site "Bamboos of Thailand".
  • Flowering:
    (1) Texas and Florida, USA, Dec. 2008: Flowering reported by Steve Carter and Roy Rogers (plus 2 photos), in BambooWeb Forum "Bamboo Discussions".
    (2) Florida, USA, Aug. 2009: Flowering reported by Doug Perry (plus 6 photos), response by Chris Stapleton, in Google Group "Florida Bambooing".
    (3) Queensland, Australia, Apr. 2017: Flowering reported by Barry O'Connell in Bamboo Society of Australia, fb 17 Apr. 2017, and shared in Bamboo Forum of India, fb 17 Apr. 2017.
    (4) Chiang Mai, Thailand: On 23 Apr. 2017, a small potted plant (BS-0919) received at Baan Sammi Nature Resort and Bamboo Garden from Mr. Thammarat Boonthammee, Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, who in turn recently obtained this plant from a nursery in Prachin Buri, central Thailand. The plant has developed a short single flowering branch (early state of development).
  • Comments:
    (1) Flowers of Bambusa lako (ไผ่ดำติมอร์ (phai dam timor), Timor Black Bamboo) are known, seeds are unknown.
    (2) It was recorded by Chris Stapleton (l.c.) that florets of Bambusa lako have free filaments, not fused as in Gigantochloa, hence a future taxonomic transfer of Bambusa lako to genus Gigantochloa would be most unlikely.
    (3) There are no records that seeds have been produced (last Internet search carried out on 12 Apr. 2017).
    (4) There are several commercial bamboo seed suppliers who offer "Bambusa lako" seeds through the Internet including ebay and amazon, at least since 2007. Is there anybody who can provide proof of the source of these seeds, or provide photos taken from these seeds and from characters of several year old plants raised from these seeds? As far as I know (from records, plus a single experience from a seed purchase), plants raised from "Bambusa lako" seeds have turned out to be ubiquitous Dendrocalamus strictus or Bambusa bambos.

Bambusa lako: Flowers — (courtesy Doug Perry, Florida Bambooing)

Bambusa lako, flowering in Queensland, Australia
(Photo from Barry O'Connell's post in Bamboo Society of Australia, courtesy Barry O'Connell)

Bambusa lako (BS-0919):
A short flowering branch with pseudospikelets in an early stage of development
(Photo taken at Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, 24 Apr. 2017)


April 17, 2017

Schizostachyum brachycladum 'Bali Kuning' (TH) — BS-0191A

Chapter 1
  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cult., 2016. A low quantity of seeds collected by D. O. from a single flowering plant, Schizostachyum brachycladum 'Bali Kuning', ไผ่ทอง (phai thong), from Aug. to Oct. 2016.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Seed weight: 0.4 g ≈ 10 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last a few months.
  • Seed germination: Seeds were sown out immediately after collecting (tests 160811, 160822, 160903, 160911, 161008, 161017, 161029). 48 seeds were collected from 11 Aug. to 29 Oct. 2016, of which 46 seeds were used in 7 batches for germination tests during this period. Altogether 12 seeds germinated (= 26%), of which 10 developed seedlings with a single primary leaf blade at least. All blades were albinistic (complete or nearly complete lack of chlorophyll pigments), and none of the seedlings did survive and died within one to three weeks from developing a first leaf blade. Hence, one can assume that 'Bali Kuning' is not capable to produce seeds that can develop seedlings with sufficient chlorophyll pigments to initiate photo­synthesis to survive, but the number of seeds available for tests has been too small to verify this assumption.
  • Comments: This species, Schizostachyum brachycladum, flowers nearly every year, usually does not produce any seeds, and its flowering does not cause harm to vegetative growth. This is the first time, since the plant was established in 2008, that I found seeds of this species. The fruit, a caryopsis, has a long persistent style which is typical for species in the genus Schizo­stachyum.

Schizostachyum brachycladum 'Bali Kuning' (BS-0191):
Culms and a new shoot (left), habit (right)

Schizostachyum brachycladum 'Bali Kuning':
Flowers on the mother plant (BS-0191) (top),
seeds (BS-0191A) with lemma and palea (mid),
and without lemma and palea (bottom)

One of the seedlings from seeds of Schizostachyum brachycladum 'Bali Kuning'


Chapter 2
  • Provenance: Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, Thailand, cult., 2016. A low quantity of seeds found in the spikelets and collected by ธ. บ. from a single flowering plant, Schizostachyum brachy­cladum 'Bali Kuning', ไผ่ทอง (phai thong), in Aug. 2016.
  • Photos in fb, 7 Aug. 2016.
  • Seed germination: A few seeds germinated and developed seedlings. As early as after 1 week, each of the seedlings had developed one leaf-blade, then all seedlings soon thereafter died, for unknown reason. One seedling grew to a height of 3–4 cm, had developed a "yellow" [sic!] culm and a single "mid green" [sic!] (not yellowish) leaf-blade, then died after two weeks. Unfortunately, this process was not documented by photos, but confirmed by ธ. บ. (pers. comm., 15–17 Apr. 2017).
  • Comments: This record gives reason to assume that the yellow stem variety of Schizostachyum brachycladum could be capable to produce viable seeds, and that seedlings might develop yellow stems and green leaves, and potentially survives. Although, this seems to be a rather rare occasion.

Schizostachyum brachycladum 'Bali Kuning': Seeds, bracts removed,
collected from a plant at Boonthammee Bamboo Garden, Hang Dong, Chiang Mai
(courtesy นายธรรมรัตน์ บุญธรรมมี)

Schizostachyum brachycladum 'Bali Kuning': A germinating seed,
from a plant at Boonthammee Bamboo Garden, Hang Dong, Chiang Mai
(courtesy นายธรรมรัตน์ บุญธรรมมี)


April 11, 2017

Dendrocalamus sp. "sang mon fa mon" (TH) — BS-0346

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cult., 2017. No seeds found from a single flowering plant. The plant (BS-0346) received from cultivated stock, สวนลุงสมจิตร, Chiang Dao District, Chiang Mai Province, northern Thailand, received as "ไผ่ซางหม่น ฟ้าหม่น (phai sang mon fa mon)", 5 Dec. 2009.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Comments: The plant started flowering in late 2015 and died after flowering (Apr. 2017).

Dendrocalamus sp. "sang mon fa mon" (BS-0346): Flowering plant, 19 Dec. 2016


  • Provenance: Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, Thailand, cult. as "ไผ่ซางหม่น ฟ้าหม่น (phai sang mon fa mon)", seedlings found on the ground of the flowering plant.
  • Photos and text information in fb, 6 Feb. 2017.

Dendrocalamus sp. "sang mon fa mon" at
Boonthammee Bamboo Garden, Hang Dong, Chiang Mai:
One of a few seedlings, Feb. 2017


March 28, 2017

Dendrocalamus sinicus (CN) — BT1010

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus sinicus, 巨龙竹 (jù lóng zhú)", collected Dec. 2016 (BT1010).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 85–110 dried spikelets (bract-wrapped seeds).
  • Seed viability: Half year under normal atmospheric conditions; one year under storage at 1–6 °C.
  • Seed germination: Germination rate high, 15 of 20 seeds germinated (75%) (test 170313).

Dendrocalamus sinicus (BT1010): Seeds


March 27, 2017

Dendrocalamus barbatus (CN) — BT1004

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus barbatus, 小叶龙竹 (xiǎo yè lóng zhú)", collected Dec. 2016 (BT1004).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 320–340 dried spikelets (bract-wrapped seeds).
  • Seed viability: Six months and longer under normal atmospheric conditions; one and a half year under storage at 1-6 °C.
  • Seed germination: Germination rate moderate, 30–35% can be expected (test 170313).


Phyllostachys edulis (CN) — BT1000, BT1011

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Phyllostachys pubescens, 毛竹 (楠竹) (máo zhú, nán zhú)", collected Sep. 2016 (BT1000, BT1011).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 350–450 dried spikelets (bract-wrapped seeds).
  • Seed viability: Six months under normal atmospheric conditions; one year and little longer under storage at 1-6 °C. Under subtropical and tropical climates, Phyllostachys edulis seeds are more easily attacked by fungi than seeds of other species, hence an anti-fungal treatment is recommended.
  • Seed germination: Germination rate low, 5–15% can be expected (test 161014 and test 170313).
  • Comments: Commonly known as Moso Bamboo.

Phyllostachys edulis (BT1011): Seeds


Dendrocalamus latiflorus (CN) — BT1006

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus latiflorus, 麻竹 (má zhú)", collected Dec. 2016 (BT1006).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 290–360 dried spikelets (bract-wrapped seeds).
  • Seed viability: Five months under normal atmospheric conditions; one year under storage at 1-6 °C.
  • Seed germination: Germination rate very low, <10% (test 170313).

Dendrocalamus latiflorus (BT1006): Seeds


Dendrocalamus sp., Gejiu (CN) — BT1008

  • Provenance: Gejiu, southern Yunnan, China. Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus 'Gejiu', 个旧龙竹 (gè jiù lóng zhú)", collected Dec. 2016 (BT1008).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 280–360 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Germination rate very low, <10% (test 170313).

Dendrocalamus sp., Gejiu (BT1008): Seeds


Dendrocalamus sp., Jianshui (CN) — BT1009

  • Provenance: Jianshui, southern Yunnan, China. Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus 'Jianshui', 建水龙竹 (jiàn shuǐ lóng zhú)", collected Jan. 2017 (BT1009).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 280–360 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Germination rate very low, <10% (test 170313).
  • Comments: Perhaps this is the same species as Dendrocalamus jianshuiensis Hsueh & D. Z. Li, 建水龙竹 (jiàn shuǐ lóng zhú) (BS-0326).

Dendrocalamus sp., Jianshui (BT1009): Seeds


Dendrocalamus sp., Lincang (CN) — BT1007

  • Provenance: Lincang, western Yunnan, China. Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus 'Lincang', 临沧龙竹 (lín cāng lóng zhú)", collected Dec. 2016 (BT1007).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 280–360 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Germination rate very low, <10% (test 170313).

Dendrocalamus sp., Lincang (BT1007): Seeds


Dendrocalamus fuminensis (CN) — BS-0696, BT1005

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus fuminensis, 大叶龙竹 (dà yè lóng zhú)", collected Jan. 2017 (BT1005).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 280–360 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Germination rate low, 10–15% can be expected (test 170313).
  • Provenance: Received from FMXG, southern China, as "Dendrocalamus fuminensis, 大叶龙竹 (dà yè lóng zhú)", collected Feb. 2012 (BS-0696), Mar. 2013 (BS-0696-1), Apr. 2014 (BS-0696-2).
  • Photos: Album in flickr, photo in Yuanlin.
  • Description: Text information and links in Google Site.
  • Seed weight: 10 g ≈ 200–220 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Seed laid on moistened tissue paper, in April 2012, 31-35 °C day, diffuse light, 21-25 °C night, atmospheric humidity >70%, the first coleoptile emerged after 10 days, germination rate low (<40%). Seeds may more frequently suffer from fungal infection than those of other Dendrocalamus species..

Dendrocalamus fuminensis: Habit
(photo from yuanlin.com)

Dendrocalamus fuminensis (BS-0696):
Seed on tissue paper, rather late germinating, 30th(!) day (left), seeds (right)

Dendrocalamus fuminensis (BS-0696): Seedling, 48th day

Dendrocalamus fuminensis (BS-0696): A leafy branch showing its large leaf blades

Dendrocalamus fuminensis (BT1005): Seeds


March 15, 2017

Olmeca recta (MX) — BS-0834

  • Provenance: Veracruz, Mexico, understorey of tropical rainforest. Seeds collected as "Olmeca recta" by R.M.O., June 2015, received 13 July 2015 (BS-0834).
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Seed weight: Not recorded.
  • Seed viability: Unknown, possibly short-lived, humid conditions required.
  • Seed germination: All seeds initiated germination just before shipment from Mexico to Thailand. Upon arrival on 13 July 2015, 4 seeds had developed 2-5 cm long shoots, and several roots. They were set in growing medium on the next day, where they continued growth promptly. Further details see test 150713. Seedlings were planted out in 2016, some died for no apparent reason (perhaps of too low atmospheric humidity during the dry hot season in Chiang Mai) in 2016 and 2017, two died from flood in 2016.

Olmeca recta (BS-0834): Fleshy seeds in the box on the day of arrival

Olmeca recta [834]: One of the germinating seeds,
the shoot with a first leaf on the 5th day after arrival of seeds


March 14, 2017

Dendrocalamus asper (CN) — BT1001, BT1003

  • Provenance: Seeds received by Boonthammee Bamboo Garden, Hang Dong, Chiang Mai, from YBN, southern China, as "Dendrocalamus asper, 马来龙竹 (mǎ lái lóng zhú)", collected Mar. 2016 (BT1001), and Jan. 2017 (BT1003).
  • Photos and text information in Bamboo Seeds Catalog.
  • Seed weight: 10 g ≈ 350–450 dried spikelets (bract-wrapped seeds).
  • Seed viability: Three months under normal atmospheric conditions; one year under storage at 1-6 °C.
  • Seed germination: Germination rate moderate, 35–40% (test 161014), and low, 10–15% (test 170313).

Dendrocalamus asper (BT1001): Seeds

Dendrocalamus asper (BT1001): Germinating seeds, 13th day

Dendrocalamus asper (BT1003): Seeds


January 31, 2017

November 6, 2016

Bambusa sp., two dominant branches (CN) — BT1002

  • Provenance: Seeds received from YBN, southern China, as "Bambusa sp. with two dominant branches, 双主枝勒勒竹 (shuāng zhǔ zhī lēi lēi zhú)", collected Apr. 2016 (BT1002), received Oct. 2016 by Boonthammee Bamboo Garden.
  • Photos and text information in Bamboo Seeds Catalog, and fb 24 Oct. 2016.
  • Seed weight: 10 g ≈ 240–260 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Germination rate very high, 23 of 25 seeds germinated (test 161014).
  • Comments: An unidentified species of Bambusa with 2 equal-dominant branches (there is commonly only 1 dominant branch in culm nodes of Bambusa).

Bambusa sp. with two dominant branches (BT1002): Seeds —
(courtesy นายธรรมรัตน์ บุญธรรมมี)

Bambusa sp. with two dominant branches (BT1002): Seedlings, 10th day —
(courtesy นายธรรมรัตน์ บุญธรรมมี)


November 2, 2016

Dendrocalamus membranaceus 'Hai Aphai' (ให้อภัย) (TH) — BS-0223-1

  • Provenance: Baan Sammi Nature Resort and Bamboo Garden, Doi Saket, Chiang Mai, Thailand, cult., 2009. A single seedling (BS-0223-1) with striped leaves raised from seeds (BS-0223) received from E. P., Germany, as "Dendrocalamus membranaceus". Origin of seeds is possibly China.
  • Photos: Album in flickr.
  • Description: Text information and links in Google Site.
  • Seed weight: Not recorded.
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Not recorded.
  • Comments: The mutation is stable so far.

Dendrocalamus membranaceus 'Hai Aphai' (ให้อภัย) (BS-0223-1): Leaf-blade
(photo taken 2 Nov. 2016)


August 21, 2016

Thyrsostachys siamensis (TH) — BS-0308

  • Provenance: Thailand, without precise locality, seeds distributed as "Thyrsostachys siamensis" by the Royal Forest Department at VIII World Bamboo Congress, Bangkok, 16–18 Sep. 2009, received from B. C., 8 Oct. 2009 (BS-0308).
  • Seed weight: Not recorded.
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: Not recorded.

Thyrsostachys siamensis (BS-0308): Seedlings, 13 months old


Thyrsostachys oliveri (?) (TH) — BS-0151

  • Provenance: Northern Thailand, without precise locality, seeds collected by ธ. บ. in 2014, received as "ไผ่รวกดำ (phai ruak dam)", 11 May 2014 (BS-0151).
  • Seed weight: 5.0 g ≈ 80 dried spikelets (bract-wrapped seeds).
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: (1) 10 of 10 seeds germinated by the 6th day (test 140512). (2) pH tolerability test (Jul.-Sep. 2014): Seedlings grow well on high alkaline growth medium.
  • Comments: This is most likely a species of Thyrsostachys, but there is currently no proof that it is T. oliveri or T. siamensis.

Thyrsostachys sp. (BS-0151): Seeds wrapped in bracts

Thyrsostachys sp. (BS-0151): A seed bare of bracts


August 20, 2016

Thyrsostachys siamensis (?) (TH) — BS-0165

  • Provenance: Thailand, without precise locality, seeds collected by A. L. in 2014, received as "Thyrsostachys siamensis", 28 June 2014 (BS-0165).
  • Photos: Album in flickr Collection Bamboos of Thailand.
  • Seed weight: Not recorded.
  • Seed viability: Unknown, viability assumed to last at least several months.
  • Seed germination: 6 of 10 seeds germinated by the 7th day (test 140628).
  • Comments: This is most likely a species of Thyrsostachys, but there is currently no proof that it is T. oliveri or T. siamensis.

Thyrsostachys sp. (BS-0165): Seeds wrapped in bracts

Thyrsostachys sp. (BS-0165): Seedlings, 13th day

Thyrsostachys sp. (BS-0165):
Seedlings, one and a half months old