Juncus JUNCACEAE-STEMONACEAE Stemona 



Lvs. stiff and tubular, regularly septate: seeds fusiform, 



coarsely and finely reticulate 3. J. leptospermus 



Lvs. soft, usually compressed, more or less septate: seeds 



obovoid or ellipsoid, finely reticulate 4. J. prismatocarpus 



var. leschenaultii 



1. Juncus effusus Linn. Common Rush fg;L>J^ (Teng Hsin Ts'ao; Lamp-wick Grass) 

 (G.M.406). Slender, tufted, 3-9 dm. high; fr. brown, VII-IX. Worldwide; locally 

 in An., Che., Hun., Hup., Ku. Swampy ground. 



2. Juncus alatus Franch. & Sav. (Mak.F.766). Grass-like, to 5dm.; fr. brown, VII. 

 Japan and China; locally in Che., Hun., Hup., Ki., Ku. Moist meadows. 



3. Juncus leptospermus Buchenau (H.F. 6:396). Stiff, erect, 4-7 dm. high; fr. brown, 

 VI-VII. Eastern Asia; locally in An., Che. Grassland. 



4. Juncus prismatocarpus R. Br. var. leschenaultii Buchenau EElt^ (San Leng 

 Ts'ao; Three-cornered Grass) (Mak.F.766). Grass-like, 1-4 dm. high; fr. brown, 

 VII-IX. Eastern Asia to Australia; locally in An., Che., Hun., Hup., Ki., Ku. 

 Moist grassland. 



2. Luzula DC. Wood Rush m^UM (Ti Yang Mei Shu) 



Grass-like leafy perennial herbs with soft usually hairy lvs.: inn. of crowded 

 clusters of small greenish fls. : capsule 1-celled 3-seeded. 65 species, in temperate 

 regions; 5 in China. (From " Gramen Luzulae ", or " Luxulae ", diminutive of lux, 

 light, a name for one of the species from its shining with dew.) 



1. Luzula campestris (L.) DC. mWM (Ti Yang Mei) (G.M.418). Grasslike, 15-30 cm. 

 high; fls. brown, III-V; fr. brown, VI-VII. Temperate regions; locally in Ku. 

 Moist grassland. 



187. STEMONACEAE Stemona Family Tf^f-4 (Pai Pu K'o) 

 Erect or climbing herbs with tuberous or creeping rootstocks : lvs. 3-several-nerved : 

 flg. peduncles axillary; fls. regular, bisexual, 4-merous: perianth segments all alike; 

 ovary superior, 1-celled; stigmas 1 or 3; fr. a 2-valved many-seeded capsule. 3 genera 

 with about 25 species, in tropical and subtropical Asia, Australia and North America; 

 one genus and 5-8 species in China. 



1. Stemona Lour. WnBIl (Pai Pu Shu; One-hundred-roots Genus) 

 Glabrous herbs with tuberous fusiform roots and alternate or whorled 3-9-nerved 

 lvs.: fls. large (1-2 cm. long in ours), solitary or few: perianth segments 4, many- 

 nerved; stamens 4; filaments very short, more or less united; anthers bearing a long 

 erect linear appendage; capsule ovoid or oblong, compressed: seeds erect, grooved and 

 beaked. 8 species, Asia to Australia; 5 in China. (Greek: stemon, stamen, referring 

 to the striking form of the stamens.) 



Key to the Species 



a. Climbing vines, herbaceous or suff ruticose : lvs. with slender rather long 

 petioles, 7-9-nerved. 

 Fig. peduncles free, not joined to the leaf-blades: lvs. very acute, 



tapering from a cordate base 1 . S. acuta 



Fig. peduncles joined to the basal portion of the subtending leaf -blades: 



507 



