Dendrocalamus maximuslamina
Dendrocalamus maximuslamina L. Gao
Thai name: No known records.
Chinese names: 巨叶竹 (jù yè zhú), 小果龙竹 (xiǎo guǒ lóng zhú); 巨 = huge, 叶竹 = bamboo leaves; 小 = small, 果 = fruit, 龙竹 = dragon bamboo.
Distribution: THAILAND: introduced, in cultivation, rare. — CHINA, cultivated, said to originate from South-East Asia, without precise locality.
Culm size: Height 25–35 m, diameter 12–18 cm.
Comments: A valid publication of the name, Dendrocalamus maximuslamina L. Gao, is not known.
Dendrocalamus maximuslamina: 1 year old seedling — by courtesy of Lihua Jiang, Yunnan Bamboo, China
Dendrocalamus maximuslamina (BS-0650): Foliage-leaves
Specimens: BS-0650 [E3], BS-0650-1 [-], BS-0859 [-] (living plants), raised from seeds, the seeds from FMXG, Yunnan, China, as "Dendrocalamus maximuslamina, 巨叶竹 (jù yè zhú), 小果龙竹 (xiǎo guǒ lóng zhú)", collected May 2011 and Feb. 2012 (BS-0650), Mar. 2013 (BS-0650-1, BS-0650-2, BS-0781-03), Feb. 2016 (BS-0859). According to FMXG, seeds were collected in South-East Asia and brought to Yunnan, southern China.
Characteristics: Foliage-leaf blades large. Inflorescence with small spikelets; caryopsis small, 4–5 mm long.
Seed viability: Unknown, viability is assumed to last at least several months.
Seed weight: 10 g ≈ 800–1,000 dried spikelets (husk-wrapped seeds).
Seed germination: (1) Seeds (BS-0650) were set in moistened coir dust at 100%, in May 2011, atmospheric humidity >70%, coleoptiles emerged after 12 days, germination rate low (<40%). — (2) Seeds (BS-0650-1) were laid on moistened tissue paper, in June 2013, diffuse light, atmospheric humidity >70%, coleoptiles emerging between one and two weeks, germination rate moderate (>50%). — (3) Seeds (BS-0781-03): Germination rate about 50% at night/day temperature range 18–28 °C, diffuse light, atmospheric humidity >70%, the first sprout emerged after 3 days (test 131118).
Comments: Growth habit: Bambu Tropicana on Facebook, 4 June 2015.
Dendrocalamus maximuslamina (BS-0650): Seeds (above), young seedlings (below)
Dendrocalamus maximuslamina (BS-0781-03): Germinating seeds, 30th day