$ff 



TRIANDRIA MONOGYNIA. 



\ 



if 



r 



Hoot creeping, perennial. Stem erect, about a foot high> naked,! 



unsled. 



sliorter 



than the stem, sheathing its base. Flowers in a terminal head cnm- 

 posed of many sessile, compressed, small heads ; of the small heaJj 



6—1 



Involucrum 6 leaved, 3 ex 



terior long, all similar to the leaves^ white near the base. 

 small, lanceolate, sli^hly mucronate, membranous, a little compress* 

 cd, white. Filaments 3. Stifle deeply 2 cleft. Seed obovate, com- 

 pressed, ru>!;ose, crowned with a triangular tubercle. 

 Gn)ws in damp soils. 



Flowers July— October. White-headed Bichromna^ 



\ 



'«* 



2. ClLT^T^. 



1). involucro foljisqiie f Involucrum and leaves 

 basi ciliatis ; spiculis ob- | ciliate at base ; spikelet^ 

 longis, attenuatis. 

 soon, 1. p. 58. 



Ptjrsh, 1. p. 47. 



Per- 



oblong tapering 



Grows in inundated places in Georgia and Florida. Purstiv 

 Flowers July. 



r 



3. Latifoli\. Baldwin. 



1). involucre polyphyl- I Involucrnm nianylea^ 

 lo, majusi ulo, foliis alt)!- I ed, large, with the leaves 

 dls; tapitulisconipressis; I white; heads compi 



foliis prs^longis, culmiim 

 luxe vaginaiitibus. 



ed 



loosely 

 stem. 



leaves very l<^^g 



sheathing 



the 



Jtoot horizontal, creeping, perennial. Stem comraonW 9-18 mc^[ 

 §h, terete, glabrous, Icafv near thp haar. f^„.,^c i* q feet \o4 



Leav 



," ' / o— ,»».«,., ii»r<u uit; uase. jjeaves i — 9 feet | s 



gabrous, acute, concave, slighUy marked by the midrib : sheaths long 



closed, those, however, of the exterior radiial leaves split bv age jj 

 the base, and become open and flat. Involucrum with about tea 

 leaves, longer than the capitulum ; the exterior leaves as 09«^ 



«&« largest i leaves ovate-lanceolate, with a long tapering P«'°^' 



