Agrostis GKAMINLAE Phleum 



prolonged rachilla: glumes subequal, 1 -nerved; lemma shorter and thinner than the 

 glumes, glabrous or puberulent at the base, faintly 5-nerved, awnless or dorsally awned. 

 About 100 species, in north temperate zone; 30 in China. (Greek: agrostis, a kind of 

 grass, from agros, a field.) 



Key to the Species 



a. Palea evident, over 2/3 as long as the lemma. 

 Panicle loose: lemma awnless. 



Panicle 5-15 cm. long, upright, the brs. usually stouter, ascending 1 . .1. stolonifera 

 Panicle 8-22 cm. long, drooping, the brs. usually capillary, 



spreading la • A. stolonifera 



var. gigantea 

 Panicle rather dense: lemma frequently awned below the middle lb. A. stolonifera 



var. aristata 

 aa. Palea minute, not over 1/3 as long as the lemma. 



Panicle open: spikelets 2.0-2.5 mm. long, awned 2. A. canina 



var. formosana 

 Panicle contracted: spikelets 1.5-2.0 mm. long, awnless 3. A. matsumurae 



1. Agrostis stolonifera Linn. (Hitch.338). Culms 25-60 cm. high; fis. VII; fr. VIII. 

 North temperate zone; locally in Ki. Open moist ground. Fig. 423. 



la. Agrostis stolonifera var. gigantea (Roth) Klett & Richt. Culms 50-100 cm. high; 



fis. VII; fr. VIII. Temperate Eurasia; locally in Ki. Damp places and shady 



ground, 

 lb. Agrostis stolonifera var. aristata Sincl. Culms 60-100 cm. high; fis. VII; fr. 



VIII. Temperate Eurasia; locally in Ki. Open moist roadsides. 



2. Agrostis canina Linn. var. formosana Hack. Culms 30-90 cm. high; fis. IV; fr. 

 V. Eastern Asia; locally in An., Che., Ki., Ku. Open moist ground and shady 

 woods. 



3. Agrostis matsumurae Hack. (Mak.F.849). Culms 20-40 cm. high; fls. IV; fr. V. 

 Eastern Asia; locally in Che., Ki., Ku. Open places and moist ground. 



39. Phleum Linn. Timothy ^^^M (Ta Shu Ts'ao Shu; 

 Large Millet-grass Genus) 

 Perennials or annuals with dense cylindrical spike-like panicles: spikelets subsessile, 

 strongly laterally compressed, without prolonged rachilla: glumes equal, indurate, 

 abruptly awned or mucronatc; lemma thin, 3-5-nerved, awnless, much smaller than 

 the glumes. About ten species, in the temperate zone; 3 in China. (Greek: phlcos, 

 a kind of reed.) 



Key to the Species 



Perennial: spikelets oblong; awn of glumes 1mm. long; anthers 1.5 



mm. long 1- >'■ pratense 



Annual: spikelets cuneate-obovate ; awn of glumes 0.5 mm. long; 



anthers 0.5 mm. long -• p - pamcutabwn 



1. Phleum pratense Linn. Timothy (Hitch.367). Culms 30-120 cm. high; fls. VII; fr. 

 VIII; perennial. Temperate Eurasia; locally in Ki., Ku. Forest shade. Fig. 424. 



2. Phleum paniculatum Huds. (Hitch.368). Culms 15-45 cm. high; fls. IV; fr. V; 

 annual. Temperate Eurasia; locally in Ku. Moist or marshy ground. 



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