All Floras      Advanced Search
FOC Vol. 22 Page 8, 57 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 22 | Poaceae

11. Neomicrocalamus P. C. Keng, J. Bamboo Res. 2(2): 10. 1983.

新小竹属 xin xiao zhu shu

Authors: De-Zhu Li & Chris Stapleton

Microcalamus Gamble, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 59: 207. 1890, not Franchet (1889).

Climbing or scrambling bamboos. Rhizomes short necked, pachymorph. Culms unicaespitose, scrambling, slender, hollow to solid; internodes terete, long, very smooth; nodes level to slightly raised with persistent sheath-base collar. Branches many, central dominant, approaching size of culm, others short and subequal. Culm sheaths deciduous after branching, narrowly triangular, basally very tough, apically papery; ligule inconspicuous, auricles and oral setae absent; blade erect, acicular, short. Leaves broadly linear-lanceolate, small, venation indistinct, apex acicular. Inflorescence bracteate, lateral spikelets subtended by a bract and basally prophyllate. Prophyll and glumes not subtending buds. Spikelets sessile, several flowered, followed by a terminal incomplete floret. Rachilla disarticulating and florets separately deciduous. Glumes 1, or absent in terminal spikelets; lemma glabrous. Palea 2-keeled, usually equal in length to lemma. Lodicules 3. Stamens 6; filaments free. Ovary oblong or ovate, upper portion pubescent or glabrous; style 1; stigmas 3. Caryopsis shortly terete, grooved.

About five species: Bhutan, SW China, NE India, Vietnam; two species (one endemic) in China.

Although Neomicrocalamus has often been synonymized within the Malesian genus Racemobambos Holttum, there are substantial differences in vegetative and floral morphology, and molecular evidence has confirmed that they are not closely related.

In addition to the species treated below, Neomicrocalamus microphyllus Hsueh & T. P. Yi (in C. Y. Wu, Fl. Xizang. 5: 50. 1987) was described from SE Xizang (Mêdog). This name was previously published by the same authors (J. Bamboo Res. 2(1): 35. Jan 1983), but not validly so because the generic name was not validly published until July 1983. The new combination "Racemobambos microphylla" (P. C. Keng & T. H. Wen, J. Bamboo Res. 5(2): 13. 1986) was not validly published because its basionym was not validly published until 1987.

1 Culm internodes glabrous; leaf sheaths glabrous, oral setae absent.   1 N. prainii
+ Culm internodes white pubescent; leaf sheaths pubescent, with ciliate margins, oral setae present.   2 N. yunnanensis

Lower Taxa


Related Objects  
  • Neomicrocalamus.pdf
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |