282 



roAt i:.i:. 



69. (135). PhippbIA K. IW. biippl. Api). Parry's Voy. 'iH5 



Spikck'trt l-ll()Wer(M|. in a slioit spikt'likc (tr iiilt'iTiiptod piiiii- 

 cle, nicliillii iirticiiliiti' ubovu tlic lower ^flumes ami imi imHliici'd 

 above tlio llorrt. Knipty gliiims iiiiiiiitt' scali's. "v* in niinil)tT ami 

 iim'<|iial, or only ont": lloral j;lunit' liroad-oval. kct' ••!. tliin, ;{- 

 ntrvcd, l.T) mm. loii<f; [tali-a sliortcr, oval, hyaline, trunraie, 

 irre;;ularly tootlietl, the two keels diver^dn;^'. tStamen I or rarely 

 2-;{. Styles short, distinct. (Jrain ohhjiig, free. 



It is allied to Co/eaiif/ms and Sporo/xilus. One sjiecies uiul that 

 ia found in the arctic regions of the northern hemisphere. 



1. P. algida (Soland.) I{. I'»r. I. e. Anrosllnahjida, Wold. IMiipp's 

 Voy. ;.MtO (1810 ?). 'J'n'r/tix/itiiii (ilijiihini W. & S, Sy.^t. 3::.*83 

 (IHIT). 



A smooth dwarf tufted annual. 5-7 cm. high, with sliort flat 

 obtuse leaf-blades. I'aniclo erect, narrow, scarcely exceeding the 

 leaves: chietly distinguished from Sporubolus by the minute lower 

 empty glumes. 



Point Barrow; arctic co'ist, Dv. .]fiir(/ork iu 

 1883. See Rot. fJaz. p. 25. 1886. A note by 

 Scribner, to the etfeet that tlio plant was col- 

 lected in wet gravelly places in Colorado, at 

 Chicago Lake and Georgetown, by 11. N. 

 T ^\^^^ Patterson, of Illinois. 



Pio. 51. —rhippna 00. (I'^fi). SPOROBOLUS R. Br. Prodr. 1 : 109 



afS^4I;'';o■ ^^■''^'*)- ''V/W Hemn. Agrost. le (ISl^). Ag- 

 rostirula Kaddi, Agrost. Bras. 33 (1823). 

 r/w//v;v/m lloehst. Flora 24:1 (1841). 



Spikelets small, 1-3-flowered, in a narrow or loose and pyram- 

 idal panicle, rachilla very short, glabrous, scarcely articulate, not 

 continued beyond the flower. Empty glumes membranous. ))er- 

 sistent or se]iarately deciduous, unawned, slightly keeled or convex, 

 obscurely 1-3-nerved, or the first nerveless; floral glume as long 

 as the empty glumes, or longer; palea as long as its glume or 

 shorter, with two nerves usually j)rominent, and readily splitting 



