384 



SYNGENESIA SUPERFLt'A 



28. ViRGATA. 



Mich. 



S. caule simplici^ lae- 



Stem simple, smooth: 

 vir foiirs giabris/ ob- I leaves glabrous, ob- 

 longo-lanceolatis, sub- long-lanceolate, rather 

 ^u*..c;c f^ri^rtJc. niinria- obtuse, erect, dotted, 



obtusis, erectis, piincta 



tis, margme 



seabris, scabrous 



along 



the 



inferioribus parce ser 



margin, the lower spa 



ratis; racemis erectis, ringly serrate; racemes 



virgatis. 



erect, virgate. 



F 



Mich. 2. p. 1 17' Pursh, 2. pv 538. Nutt. 2. p. l60. 



Root perennial, ^tem very erect, two to four fect^ high, ^ttenuated^^to- 

 wards the summit, striate, nearly glabrous. ' — """'"' •"*^'" 



Lower leaves nearly a foot 



wards the summu, sinnie, neanj^ ^muiuu-. *^v.«v-. ^^--^--^ \'r] nh- 

 lonff, spathulate-lanceolate, the upper diminishing, sessile, ^PP^f^^l%^" 

 lon^-lanceolate, all nerved, somewhat carnose, scabrous and serrulate along 

 the^'niargins, sometimes acute, dotted, veins pellucid. Floicers rather large, 

 in erect, appressed racemes. Scales of the invohicrum linear-lanceolate, 

 acute, pubescence appressed. Florets of the ray five to seven, with a scale 

 sometimes attached to the tube of the corolla, of the disk about eight, ^eea 

 striate, hairy. Pappus hairy, somewhat scabrous. 



Grows in damp soils, along the margins of swamps. 



Flowers June — October. 



29. PULVERULENTA. 



Nutt. 



S. caule simplici, fo- 



Stem 



simple 



and 



liisque 



pulverulento- I with the leaves covered 

 pubescente; foliis ses- with a pulverulent pu- 

 silibus, inferioribus el- \ bescence; leaves J^es- 

 lipticis, serratis, supe- , 

 rioribus obovatis, inte- I serrate, the upper obo- 



sile, the loAver elliptic, 



gerrimis, margme sea 



vate, entire, scabrous 



5 



racemis erectis, | along the margm; ra- 

 cemes erect, spiciform; 



5 



ligulis 



florets of the ray Ion 



bris 

 spiciformibus 



(10) elongatis. 



Nutt. 2. p. l6l. , 



A species w hich might be confounded with the preceding, though qui 

 distinct. JVutt. 



