Alopecurus GRAM1NEAK Phaenosperma 



the margins connate below; palea none. About 30 species, in north temperate zone: 

 6 in China. (Greek: alopex, fox, and oura, tail, alluding to the cylindric panicle.) 



Key to the Species 



Spikelets 2-3 mm long Spikelets 5-6 mm. long; awn exserted 1. A. japonia/s 



Awn 1.5-3.5 mm. long, included or scarcely exserted 2. A. aequalis 



Awn 6-10 mm. long, distinctly exserted 3. A. mandshuricus 



1. Alopecurus japonicus Steud. (Mak.F.845). Culms about 30cm. high; fls. IV; fr. 

 V. Central and southern China to Japan; locally in Ku. Open grassy roadsides 

 and fields. 



2. Alopecurus aequalis Sobol. Short-awn Foxtail M^W<. (K'an Mai Niang; Wheat- 

 watching Woman) (Hitch. 359). Culms 15-45 cm. high; fls. IV; fr. V. Temperate 

 and warm regions of Eurasia; locally in Che., Ki., Ku. Moist or swampy ground. 

 Fig. 429. 



3. Alopecurus mandshuricus Litvinov (Sched.Herb.Fl.Ross.6:138). Culms 20-30 cm. 

 high; fls. IV; fr. V. Eastern China; locally in Ku. River banks. 



47. Polypogon Desf. Beardgrass H^M (Tzu Ts'ao Shu) 



Perennials or annuals with spikelike or pyramidal panicles: spikelets minute; the 

 pedicels disarticulating a short distance below the glumes and leaving a short pointed 

 callus attached: glumes equal, 1-nerved, keeled, each with a straight awn from the 

 tip or from between the 2-lobed apex; florets freely deciduous; lemma hyaline, glabrous, 

 much shorter than the glumes, awned or awnless. About six species, in warm regions; 

 two in China. (Greek: polus much, and pogon, beard, alluding to the bristly inflore- 

 scence.) 



Key to the Species 



Awns of glumes 2-4 times as long as the spikelet 1 . /'. rmmspeliensis 



Awns of glumes shorter or scarcely longer than the spikelet 2. P. higcgawcri 



1. Polypogon monspeliensis (L.) Desf. Rabbitpoot Grass |§ (Tzu; Field Grass) 

 (Hitch. 363). Culms 15-60 cm. high; fls. IV; fr. V. Tropical and temperate zones; 

 locally in Ku. Moist grassland or waste roadsides. 



2. Polypogon higegaweri Steud. Ditch Polypogon (Mak.F.848). Culms 20-100 cm. 

 high; fls. IV; fr. V. China, India, Japan; locally in Hup., Ki. Stream banks, 

 swamps, ditches and moist ground. Fig. 430. 



" Pol lypogon lutosus was a misapplied name. The American grass so called is P. interruptv.8 

 HBK. But the Asiatic species is not the same. I examined all Asiatic material and descriptions 

 and, after deciding this should be P. higegaweri Steud., found that Keng used this name in his 

 'Manual of Grasses of Kiangsu.' " — Agnes Chase. 



48. Phaenosperma Munro jnlfi T-V-i'ii (Hsien Tzu Ts'ao Shu; 

 Grain-prominent-grass Genus) 



Tall perennials with elongate open panicles: spikelets 1-fld., awnless, dor sally 

 compressed, without prolonged rachilla, disarticulating below the glumes from the short 

 pedicels: glumes thin, unequal, the first 1-3-, the second 3-5-nerved; lemma 

 membranaceous, 3-nerved, equaling the second glume, with a similar but 2-nerved 



462 



