Cleistogenes GRAMINEAE Eragrostis 



below 1 . C. hancei 



Glumes acute or obtusish; the second 3-5 mm. long, 1- or 3-nerved 



below 2. C. serotina 



aa. First lemma usually with an awn 3-5 mm. long. 



Spikelets 2-5-fld., 7-12 mm. long 3. C. nakaii 



Spikelets 1-3-fld., 5-7 mm. long 4. C. hackelii 



1. Cleistogenes hancei Keng {Diplachne sinensis Hance) (Si. 11: 408). Culms stout, 

 4-10 dm. high; fls. VIII; fr. IX. Northern and eastern China; locally in Ku. 

 Hillsides. 



2. Cleistogenes serotina (L.) Keng (Si. 5: 149). Culms 3-6 dm. high; fls. VIII; fr. 

 IX. Southern and eastern Eurasia; locally in Ku. Moist slopes. 



3. Cleistogenes nakaii (Keng) Honda {Diplachne latifolia Nakai) (Si. 5: 151). Culms 

 stout, 4-10 dm. high; fls. VIII; fr. IX. Eastern Asia; locally in An., Ku. Prairies 

 and shady thickets. 



4. Cleistogenes hackelii (Honda) Honda {Diplachne hackelii Honda; Diplachne serotina 

 Link var. aristata Hack.) M^L (Chin Ts'ao) (Si. 5: 151). Culms 3-10 dm. high; 

 fls. VIII; fr. IX. Central China and Japan; locally in Che., Ku. Moist ground. 



9. Molinia Schrank IxV^^-M (Mo Lin Ts'ao Shu) 

 A wiry hard-based tufted perennial with elongated basal lvs. clustered near the 

 base of the apparently nodeless culms: leaf blades flat and narrow: infl. a panicle: 

 spikelets 2-4-fld.: rachilla disarticulating above the glumes; callus glabrous or nearly 

 so, glumes unequal, acute, shorter than the lemma, 1-nerved; lemma subterete, 

 membranous, narrow, obtuse at apex, 3-nerved; palea equal to or exceeding the lemma. 

 One species, in Eurasia. (Named for Giovanni Ignazio Molina, 1740-1829, student of 

 Chilean flora.) 



1. Molinina caerulea (L.) Moench (Hitch. 171). Culms 5-10 dm. high; rachilla 

 glabrous. Eurasia; locally in Ku. 



10. Moliniopsis Hayata ^^R^M (Ni Mai Shih Ts'ao Shu; 

 Molinia-like-grass Genus) 

 Moderately tall perennials with simple culms: spikelets in open panicles: lemmas 

 subterete, awnless, the silky- pubescent rachilla segment disarticulating at the base, 

 forming a short callus to the floret. 3 species, in eastern Asia; 2 in China. (A com- 

 bination of Molinia and opsis, likeness.) 



Key to the Species 

 Sheaths wooly at the thickened base of the culm: spikelets straw-colored; 



the first lemma 4-5 mm. long 1. M. hui 



Sheaths glabrous: spikelets purple; the first lemma 5.5-7 mm. long 2. M. intermedia 



1. Moliniopsis hui (Pilger) Keng {Molinia hui Pilger) (Si. 11: 409). Culms 6-10 dm. 

 high; fls. VIII; fr. IX. Southeastern China; locally in Che. Hillsides and thickets. 



2. Moliniopsis intermedia Keng (Si. 11: 409). Culms 7-9dm. high; fls. VIII; fr. 

 IX. Southeastern China; locally in An. Open slopes. 



11. Eragrostis Beauv. Lovegrass lllg^g (Hua Mei Ts'ao Shu; 



Draw-eyebrow-grass Genus) 



Perennial or annual grasses with tufted culms: spikelets in open or contracted 



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