Sasa GRAMINEAE Brachystachyum 



ivoody perennials with either monopodial or sympodial rhizomes, oblong-lanceolate 

 blades and short petioles articulated with the sheaths, and with spikelets arranged in 

 panicles or racemes, or more frequently in tufts or false whorls at the nodes of the 

 fig. brs. 



Key to the Genera 



A. Culms terete: spikelets loosely or densely arranged on a true con- 

 tinuous rachis, never intermingled with spathes. 



Stamens 6 1 • Sasa 



Stamens 3. 

 Inn. an open panicle or raceme, exserted or included below in 



sheaths or sheathing spathes 2. Arundinaria 



Inn. a spike-like raceme, subtended by a series of closely set 



sca l es 3. Brachystachyum 



AA. Culms subterete, flattened or grooved on one side: spikelets arising 

 from nodes of the flower-branchlets, intermingled with spathes. 



Culms fruticose or arborescent; brs. usually two from each node 4. Phyllostachys 



Culms low or dwarf; brs. several from each node, verticillate 5. Shibataea 



1. Sasa Makino & Shibata %YlM (Jo Chu Shu; Broad-leaf ed-bamboo Genus) 

 Shrubs: rhizomes monopodial: culms terete, with solitary brs.: spikelets in open 



panicles or racemes: stamens 6. About 12 species in eastern Asia, one in China. 



(The Japanese name.) 



1. Sasa sinica Keng (Si. 7: 748). Shrub, 1-1.5 m. high; fls. V; fr. VI. Southeastern 

 China; locally in An., Che. Roadsides. 



2. Arundinaria Michx. ^ftM (K*u Chu Shu) 

 Trees or shrubs: rhizomes monopodial: culms terete, usually with fascicled brs.: 

 spikelets as in Sasa: stamens 3. About 100 species, in tropical and temperate regions; 

 30 in China. (Latin: arundo, a reed.) 



Key to the Species 



Stigmas 2: If. blades broad, up to over 4 cm. wide 1. A. latifolia 



Stigmas 3: If. blades narrower, mostly not over 2 cm. wide. 



Sheaths not fimbriate at the summit: palea usually exceeding the lemma. . 2. A. amara 

 Sheaths fimbriate at the summit: palea usually shorter than the lemma.. 3. A. varia 



1. Arundinaria latifolia Keng (Si. 6: 147, 153). Shrub, to Ira.; fls. (occasional) 1; 

 fr. unknown. Southeastern China; locally in An., Che., Ku. Brushy slopes. 



2. Arundinaria amara Keng ^flr (K'u Chu; Bitter Bamboo) (Si. 6: 148, 154). Shrub, 

 1-4 m. high; fls. V; fr. VI. Southeastern China; locally in An., Che., Ku. 

 Exposed or sandy slopes. Fig. 402. 



3. Arundinaria varia Keng H^v&Yj (Hua Tung K'u Chu; East-China Bitter-bamboo) 

 (Si. 6: 150, 155). Shrub, to lm.; fls. VI; fr. unknown. Eastern China; locally 

 in Che. Open slopes. 



3. Brachystachyum Keng MU¥sM (Tuan Sui Chu Shu; 

 Short-spikeleted-bamboo Genus) 

 Shrubs: rhizomes monopodial: culms terete, with fascicled brs. : spikelets in spike- 



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