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FOC | Family List | FOC Vol. 22 | Poaceae

5. Melocalamus Bentham in Bentham & J. D. Hooker in Bentham & J. D. Hooker, Gen. Pl. 3: 1212. 1883.

梨籐竹属 li teng zhu shu

Authors: De-Zhu Li & Chris Stapleton

Clump-forming climbing bamboo, tall, with slender culms. Rhizomes short necked, pachymorph. Culms flexuose, nearly solid; nodes slightly prominent. Branch complements several to many, 1 dominant and sometimes about as thick as and replacing main culm. Culm sheaths persistent, leathery; auricles present, sometimes very small; ligule short, inconspicuous; blade erect or reflexed, large. Leaf blade large or medium sized, lanceolate to oblong-lanceolate, rounded at base. Inflorescence iterauctant, glomerate, on large leafless flowering branches, subtended by 1-keeled prophylls. Spikelets 2-flowered, with rachilla extension, small, to 4 mm. Glumes 2, ovate, glabrous; lemma similar to glumes. Palea 2-keeled, equal to or slightly longer than lemma. Lodicules 3, glabrous, ciliate on margin. Stamens 6; filaments free. Ovary stalkless, glabrous; style very short; stigmas 2 or 3, plumose. Caryopsis berrylike, globose, 1.5–2 cm, with fleshy pericarp, without endosperm, sometimes viviparous.

About five species:Bangladesh, S China, India (Assam), Myanmar; four species (three endemic) in SW China.

In addition to the species treated below, Melocalamus ningmingensis Ohrnberger (Bamboos World Introd. 4: 19. 1997) was published as a nomen novum for M. gracilis W. T. Lin (J. S. China Agric. Univ. 14(3): 110. 1993, not R. B. Majumdar, 1989), which was described from sterile material from Guangxi (Ningming).

1 Culm sheath auricles conspicuous   (2)
+ Culm sheath auricles absent or inconspicuous   (3)
2 (1) Culm sheath apically truncate, symmetrical; internodes 25–35 cm, solid or subsolid.   1 M. compactiflorus
+ Culm sheath apically oblique, asymmetrical; internodes 45–50 cm, hollow, wall ca. 5 mm thick.   2 M. scandens
3 (1) Culm internodes 70–120 cm; culm sheath apically with thin projection 1–2 cm on each side.   3 M. elevatissimus
+ Culm internodes 20–40(–60) cm; culm sheath apically truncate.   4 M. arrectus

Lower Taxa


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