TRIANDRIA DIGYNIA 47 



Root perennial ? Culm 1 to 2 feet high, generally simple, erect, slender ; nmles 

 mostly surrounded by a retnorscly villous ring. Leaves linear-lanceolato, rather 

 short, smooth ; radical ones ovate-lanceolate : sheaths bearded at throat,and pilose 

 alon^ tho margin ; upper ones smooth, lower ones pubescont. Panicle terminal., 

 smooth : branches often numerous, somewhat verticillate. Spikelets at the ex- 

 tremities of the branches, oblong-ovoid, slightly pubescent. Lower glume minute, 

 uppor one obscurely 5-nerved. Abortive floret neutral ; upper po/ea about half a* 

 long as the lower. Perfect floret a little longer than the upper glume, smooth and 

 shining; the lower palea somewhat keeled. 



I fab. Dry woodlands / old fields, &c. common. Fl. June. Fr. Aug. 



Obs. This appears to embrace numerous varieties, which are not easily reduced 

 to any satisfactory arrangement. I derived but little aid from consulting Muhlen- 

 berg's Herbarium. Some of the varieties are generally smooth, and others quite 

 villous. Sometimes all the nodes have a retrorsely villous ring— and in some in- 

 stances they are nearly glabrous. 



, 6. P. microcarpox, JHuhl. Culm simple, erect; sheaths smooth, 

 striate, pilose on the margin ; leaves lanceolate, nerved, ciliate at base. 

 margins scabrous; panicle erect, much branched, smooth; spikelets 

 small, ovoid or ohovoid, nearly smooth. ffiuhL Gram. p. 111. 

 Small-fruited Panic im. 



Root perennial. CtUtn 18 to 30 inches high, erect, simple, smooth ; nodes glab- 

 rous. Leaves lanceolate, acuminate, nerved, somewhat scabrous above, smooth 

 beneath, undulate and scabrous on the margin, ciliate at base ,• radical leaves ovate, 

 acute : sheaths smooth, deeply striate, sparingly pilose or ciliate on the margin : 

 ligule none. Panicle erect, much branched, rather large, somewhat pyramidal: 

 branches hYmiosc, nearly smooth, tyikelels numerous, at the ends of the branch- 

 es, small, scarcely pubescent. Lower glume very small, ovate, obtuse, generally 

 purple : upper one obovate, obtuse. Abortive floret neutral ; upper palea aboat 2 

 thirds the length of the lower. Perfect floret as long as the upper glume, smooth 

 and shining, bluish white. 



Jfab. Woodlands, and low grounds: frequent. FL July. Fr. Aug. 



Obs. This has hitherto been considered, here, as one of the many varieties of 

 P. m7*"JiZ77j,— though it is considerably larger, with broad-lanceolate leaves, often 

 nearly an inch wide. It agrees so nearly with Dr. Muhlenberg's description, that 

 I believe it is his plant 



7. P. latifolittm, L. Culm generally simple, with the nodes re- 

 trorsely pilose ; leaves ovate-lanceolate, smoothish 4 or, with the sheaths, 

 somewhat pubescent ; panicle terminal, a little exserted, simple, pubes- 

 cent; spikelets oblong-ovoid; abortive floret staminate, the upper palea 

 acute, nearly as long as the lower one, Beck, Hot. p % 394. SrsciM. 

 Gray, Gram. 2. no. 109. 

 Broad-leaved Pa.vicuwt. 



Root perennial. Culm 1 to 2 feet high, mostly simple. Leaves ovate-lanceolate. 

 3 or 4 inches long and about 1 inch wide,subcordate and clasping at base, spread- 

 ing, generally smooth, sometimes ciliate : sheaths about half as long as the inter- 

 nodes, ciliate along the margin, often pubescent. Panicle simple, rather few-flow- 

 ered ; branches pubescent* Spikelets rather Urgfe, pubescent : lower glume ovate, 

 loose, upper one strongly nerved. Abortive floret with 3 perfect stamens. Per- 

 fect floret lanceolate, acute. 



flab. Shaded ditch banks; woods and thickets : common. Fl.Iwne. Fr. Anj. 



