KKS'ircK.K. 



(521 



ill iiuiiilu'i-, Hut, Mol'tly pul)L'sct'nt, 5-10 cm. lon^', 2-3 mm wido. 

 riuiido |»ynimi(lul, 7-iy cm. long, rayH very bIi-ikKt, llexnosio in 

 liult'-wli(trl.s of 4-0, the longivst 4-5 cm. long hoidfrf tin- wpikolot, 

 ciich iicaring 1-4 idiltosct-nt spikclets. Spikt-lnt.s slcnMcr, .'> (J- 

 flowori'il, joint of racliillu 1) mm. long; empty gin iiu-s nurrow, with 

 hIciuUm', liyulino points, first l-ntTveil. mm. l(Mig, stTond li-nt'iVfd. 

 8-I(> mm. long; llonil ghimc mirrowly flliptical, •'i-T-norvcd, Id I-.* 

 mm. long including tiio liyulini* ti't-tli at the upcx, uwn l()-:.'() mm. 

 long; paloa shortor. (jrain coticave, round on the hack, 7-.S mm. 

 long. 



('. S. Dcpl. Aiji'inil. Tr)5; \'frmont. /'n'lif/k; Massacdnisotts, 

 L. II, /tdilri/j New .ItM'.sey, *SV7*/7iwt'r ;jj1T u 



Introduced from Kuropo. 



20. B. Pumpellianus Sciihn. I^nll. 'i'oir. Cluh, 15:9 (18SS). 



An crccit .stout perennial, 5l)-l()(> mi. high, with creopiug' 

 rootfltoeks. Sheaths 4-r). smooth, or .sjiaringly pubcacont; ligiilo 

 tirm, I. it mm. long; hhules .sjnooth 

 below, scabrous above. Hat, with long 

 involute points, tlie blades 15-25 cm. 

 long, 4-8 mm. broad. Panicle iisnally 

 erect, linear, rather dense. 8-20 cm. 

 long, rays 2- .') at each joint, the 

 longest 5- 10 cm. long, each bearing 

 1-3 spikelets. S[»ikeli'ts linear-lanceo- 

 late, compressed, tinged with purple, 

 4-lO-llowered, 2-4 cm. long, the 

 longest joint of rachilla pulH'.scent, 8 

 mm. long; empty glumes smooth, first 

 lineur-lanceohite, l-nervcd, 5-9 mm. 

 long, second elliptioal-lanceolati', o- 

 itevred, 7-11 mm. long; lloral glume 

 softly pubescent, oval-lanceolate, T-9-nerved, the lateral nerves 

 obscure, 10-17 mm. long, including the eiitin; acute a])e.\, nwu 2-t> 

 mm. long ; palea linear, 13 mm. long, finely ciliate on the kecl.-^. 



(Colorado, Vusey for U. S. Dept. Agricul. 740; Wyoming, 

 Bujfum C 35. 



m 



Fio. 116. — Bromns PuinpclU- 

 anus. A, .'^pikelet ; a, llorot. 

 (.Sciibner.) 



