N... -.1. 

 SCHIMDTIA SUBTILIS Trati. Fl. Aiistr. i. 12 (181G). 



riant low, s]treadin{i, animal. 



Culms <r('iii»Milate and often l)ianched below, ascendinp, slender, 1 to .'5 indies tall. 



Lvarcs two or tlirec on cacli cnliii ; slicntlis latlier scaiions, loose, o])('ii abovr. tlie 

 u))i)ei' ciiie \a};'inate; blades flat or folded, curved backward, snioolli, ^ inch loiij: am! 

 i line or less wide; liffule ovate, acute, decurrent, 1 to i' lines long. 



[iijhinsriiirr a ratlier si)readiu;;', iuterrui)tcd, llcxiuuis ]iauicl<- .J to 1 incli lou^', 

 siniph' or branched Ix-low, with spikcletsiu uiubcllatc clusters at the nodes of the axis 

 and extremities of the branches, on jiubesceut pedicels .'5 lines lonj; or less. 



S/iikilrfs Itlowcred, about A line lonji'; tloial uluine lanceolate, acuminate, awn- 

 pointed, thin, inemljranaci'ous, exee]it tlie his|iidulous excurrent nddnerve, A line lon;^; 

 palet broadly obovate, li- or ."l-lobed or toothed above, about ^ line long, thin, mem- 

 branaceous, except the two l)is])i(lulous, divergent, slightly excurrent keels; sta'mens 

 1'. witii sliort anthers; ovary ellii)tieal. smooth, .] line long, with li feathered stigmas; 

 ripened grain reddish, .', line long, falling free. 



I 'I, ATE LI, No. 1 ; a, spikelet opened .slightly; h, floral glume, dorsal view; c, palet, 

 ventral view, half opened. 



Oiegon and Washington, in low, muddy land. Too small and scarce to be of any 

 ]>raetical value. The name was changed to Coleantbun xubtilix Seid. in 1{. & S. Syst. 

 ii. 27(1 (1S17), because an older genus Smithia wnf, held to eontiict with the use of 

 iScliiiiidtiti. The plate was litliograjihed before the recent changes in noniencjature 

 reinstated the older generic name. 



No. 51. 



PHIPPSIA ALGID A H. Br. Chlor. Melv. 285 (182;}). 



Plant low, ca^spitose or densely tufted, perennial, witli abundant, long, fibrous 

 roots. 



Culms branched below, ascending, rather robust, smooth, '3 to (i inches long. 



Leaves of culm 2 or .S. with loose, open, ratlier scarious, smooth sheaths nearly 

 e(|ualing the internodes, aiul tiat or folded, obtuse, smooth blades 2 inches or less long; 

 ligule membranaceous, I line or less long. 



I II florescence an oblong, rather closely flowered panicle about 1 inch long; lays 4 

 or it in semiverticillate clusters, umM|ii;d. .\ inch long or less, erect, divided, and si)ikelet- 

 bearing near the extremities. 



Spikclcts obovate, somewhat compressed, 1-flowered, § line long; empty glumes 

 obtuse, less than } line long, caducous; lloral glume lance oblong, obtuse, oi- barely 

 acute, usually denticulate above, smooth, obscurely .S-uerved, • line long; jiah't obovate, 

 • ildong, obtuse, or more or less .'i-lobed above, nearly smooth on the 2 divergent keels; 

 stamens 2; grain broadly elliittical, tuberculate, nmghened. alxmt e(iualing the glumes 

 at maturity. 



I'LATK LI, No. 2; a, .S])ikelet opened; h, floral glume; r. |i;ilet. (husal view, partly 

 opened. 



Alaska and Arctic America. Its mode of growth in dense masses would indicate 

 that it might form a considerable portion id' the forage of the herbivorous animals ot 

 the region. 



