SYNGENESIA FRUSTRANEA. 
457 
the involuerum; of the disk very numerous, dark purple. Seed four-angled. 
Pappus a slight margin. Receptacle convex, chaff lanceolate, glabrous, 
with purple summits, nearly as long as the florets of the disk. 
Grows in mountain meadows from Pennsylvania to Carolina, Pursh. In 
the western districts of Georgia. 
Flowers August — October. 
13. H irta. 
Very hirsute; stem 
virgate, sparingly 
branched, 1-flowered; 
leaves spathulate, lan- 
ceolate, triplinerved, 
serrate, hirsute; scales 
of the involuerum im- 
bricate in a triple se- 
ries, shorter than the 
ray; chaff obovate, a- 
cute. 
Sp. pi. 3. p. Walt. 214. Mich. 2. p. 143. Pursh, 2. p. 574. 
Nutt. 2. p. 178. 
Root perennial. Stem two to three feet high, generally undivided, sca- 
brous, hairy. Leaves alternate, sessile, semiamplexicaule, the lower spathu- 
late-lanceolate, the upper lanceolate and ovate, all very hirsute. Flowers 
solitary, terminal. Involuerum many leaved, the leaves narrow lanceolate, 
hairy, the interior the smallest. Florets of the ray about fourteen, yellow, 
obliquely two-cleft at the summit, hairy, twice as long as the involuerum; of 
the disk very numerous, dark purple. Seed four-angled. Pappus obsolete. 
Receptacle conic, chaffy; chaff oblong, fringed and purple at the summit, 
hairy, as long as the florets of the disk. 
Grows in dry sandy soils. 
Flowers June— -September. 
R. hirsutissima; cau- 
libus virgatis, subra- 
mosis, unifloris; foliis 
spathulato - lanceolatis, 
triplinervibus, serratis, 
liirtis; involucri squa- 
mis triplici serie imbri- 
catis, radio breviori- 
bus; paleis obovatis, 
acutis. 
14. Aristata. Pursh. 
Stem hispid, branch- 
es long, corymbose, 
1-flowered; leaves Jan- 
VOI,. It. M 3 
R? caule hispido, ra- 
mis elongatis, corym- 
bosis, unifloris; foliis 
