On Some New or Little Known Plants 

 from Northern China. 



By 

 Yoshitada Yafoe. 



1. Panicum trypheron Schult. Mant. II. 24-4-; Hook. f. Fl. 

 Br. Ind. VII. p. 17; Rexdle in Journ. Linn. Soc. XXXVI. p. 

 333. 



Hab. North China: dry sandy plain of Nan-haitze near Peking 

 (Sept. 1906. fl. fr.); Manchuria: Moukden (21. Aug. 1911 fr.). 



This south Asiatic species hitherto only known from 

 Tientsin. 



2. Deschampsia chinensis m. 



Root firbrous. Culm tufted, smooth, very slender, capillary, 

 20—25 cm. long. Leaves almost all radical, 3—5 cm. long, very 

 narrow, capillary, straight; ligule short, truncate. Panicle 

 spreading, sub-nutant, trichotornous; branches few, slender, 

 capillary, scabrous; branchlets short alternate. Spikelets 6 mm. 

 long, 2-flowered, purple. Glume I smallest, 2.5-3 mm. long, 

 ovate-lanceolate, acute, 1-nerved; gl. II 3.5 mm. long, 3-nerved, 

 pilose at the base; gl. Ill 5—6 mm. long, acuminate, pointed to 

 the awn, 5-nerved, ovate, purple striped at the tip. Palea 4.5 

 mm. long, narrow ovate, 2 keeled ; keel setose. Anthers small. 



Very closely related to Aira atropurpurea and D. flexuosa, 

 but easily distinguishable by rather small spikes and gl. Ill 

 acute or acuminate, not truncated. 



Hab. North China: near the summit of Mt. Siaowutaishan, 

 about 3000 m. alt. (31. Jul. 1906 fl). 



3. Pappophorum brachystachyum Jaub. et Spach. "111. 

 PI. Orient. IV. t. 821"; Steud. Syn. Gram. p. 200. Enneapogon 



