KESTICK.E. 505 



Orepfon (Siskiyou Mountains), Hinrcll in July, 1887. 



12. M. mutica Walt, Fl. Car. 7S (i:,ss). M. (jlabm Michx. Fl. 

 Uor. Am. 1 : G3 (1803) in part. M. miificuxiw. (jlahru A. <!ray, 

 Man. Ed. 3:555 (1856). 



Culms slender, GO-MO cm. liigli. Lij^ulo brown below, 3 nun, 

 long; blades O-T in number, flat, smootli or seabrid, 10-15 em. 

 lonif, 3-5 mm. wide. Panicle racemose, 12-1 T cm. joni;-, rays single 

 or in couples, distant, few-tlowercd. tlie longest l-o cm. long. 

 Spikelets on slender curved pedicels, with 2 fertile Howers, longest 

 joint of racliilla 2 mm. long; first em[)ty glume G.5-i) mm. long, 

 broadly oval, o-li-nerved, second 8-!) mm. long, nearly elliptical- 

 lanceolate, 5-7-nerved ; floral glume elliptical, T-K-iU'rved, !» 

 mm. long; palea spatulate-elliptieal, al)out G nmi. long. I'rofessor 

 Scribner says: "Distinguished from M. t/ijf'KS(t, witii which it has 

 been united by some authors, by its more slender habit, less-branched 

 and I'ewer-tlowered panicle, which is often reduced to a single 

 raceine. The spikelets also rarely have more than two jK-rfect 

 florets, the outer glumes are more nearly equal in length, and often 

 cpiite Jis long as the spikalct, while the flowering ghnnes are broader 

 and more obtuse." 



I'ennsylvania, (hiiher ; District of Columbia, MrCarOni ; 

 Florida, Cnrfixx. 



Pennsylvania, Illinois, southward and westward to Texas. 



13. M. laxifloria Cavan. Ic. ,■), 48. /. 473,/. 2 (1700). 



A tufted grass, 50-00 cm. high. Sheaihs s(!abrid, longer than 

 the internodes; ligule white, thin, split, 5-7 mm. long; blades of 

 sterile shoots narrow, 2-10 mm. long, those of the cidm 3—4 in 

 number, flat or involute, seabrid, 7-12 cm. long, 2-3 mm. wide. 

 Panicle open, 12-19 cm. long, rays at length s})reading or droop- 

 ing, mostly in threes, the longest 5-8 cm. long, flower-bearing but 

 little below the middle. Spikelets on slender curved or refloxed 

 pedicels, 1-2-flowered, rac'hilla about 2 mm. long; empty glumes 

 Avhite, thin, 5-nerved, first oval, 7 mm. long, second linear, 

 obtuse, apex sometimes notched, G-7 nmi. long; floral glume G-7 

 mm. long, ovate-oblong, obtuse, seabrid, 11- to nuiny- nerved; palea 

 linear-spatulate, 5 mm. long. 



