Briza GRAMINEAE Trisetum 



lemmas as broad as long. Eurasia; locally in Ku. Moist meadows. 



21. Melica Linn. %^L& (Ch'ou Ts'ao Shu; Stinking-grass Genus) 

 Perennials with closed sheaths : spikelets on slender pedicels which are curved and 

 pubescent near the apex, disarticulating from the curve of the pedicel: lemmas several- 

 nerved, awnless. About 70 species, in cool regions; 6 in China. (An old Italian name 

 for Sorghum; from mel, honey.) 



Key to the Species 



Panicle 15-30 cm. long, compound: spikelets 4-6 mm. long; the 



imperfect florets not forming a club-shaped or globular mass 1. M. onoei 



Panicle 3-10 cm. long, simple or reduced to a raceme: spikelets 7-10 mm. 



long; the imperfect florets forming a club-shaped or globular mass. . 2. M. grand flora 



1. Melica onoei Franch. & Sav. (Mak.F.862). Culms 75-150 cm. high; fls. VIII; fr. 

 IX. Eastern Asia; locally in Che., Ku. Open thickets. 



2. Melica grandiflora Koidz. (Bo.Ma.T.39:17). Culms 30-60 cm. high; fls. IV; fr. V. 

 Eastern Asia; locally in Che., Ku. Shady woods and moist ground. Fig. 413. 



Tribe III. Aveneae Oat Tribe s&g^ (Yen Mai Ts'u) 

 Spikelets several-2-fld., the rachilla disarticulating above the glumes (except in 

 Holcus) and prolonged behind the upper palea: glumes equaling or longer than the 

 first floret, or even as long as the whole spikelet; lemmas several-5-nerved, indurate 

 at maturity, dorsally rounded; awns when present arising from the back or from 

 between the teeth of a bifid apex: infl. a panicle or a raceme. 



Key to the Genera 



A. Spikelets disarticulating below the glumes 25. Holcus 



AA. Spikelets disarticulating above the glumes. 



Lemmas awnless or mucronate 22 . Koeleria 



Lemmas distinctly awned. 



Spikelets less than 1cm. long: glumes 1-3-nerved 23. Trisetum 



Spikelets over 1cm. long: glumes several-nerved 24. Avena 



22. Koeleria Pers. ^§^.M (Hsia Ts'ao Shu) 

 Tufted perennials with spike-like panicles: spikelets sub sessile or shortly pedicelled: 

 lemmas faintly 3-5-nerved, acute or mucronate. About 20 species, in temperate 

 regions; 3 in China. (After Professor G. L. Koeler, an early German writer on the 

 grasses.) 



1. Koeleria cristata (L.) Pers. ?£|l (Hsia Ts'ao) (Hitch.281). Culms 15-60cm. high; 

 fls. IV; fr. V; lemmas awnless. North temperate zone; locally in Che., Ku. 

 Grassy slopes. 



23. Trisetum Pers. g^^M (Hsieh Kou Ts'ao Shu; Crab-claw-grass Genus) 

 Tufted perennials: spikelets less than 1cm. long, 2-3-fld.: lemmas chartaceous, 



with hyaline margins, 2-toothed, dorsally awned above the middle; glumes 1-3-nerved. 



About 65 species, in arctic and temperate zones; 6 in China. (Latin: tres, three, and 



seta, a bristle.) 



448 



