392 
SYNGENESIA SUPERFI.DA. 
41. Tencifolia. 
S. caule scabro, an- 
gulato, corymboso-ra- 
moso; foliis angustissi- 
me linearibus, patulis, 
obsolete 3-nervibus, 
scabris, axillis foliosis; 
corymbis terminalibus 
fastigiatis, ramulis ca- 
pitals, ligulis disco vix 
altioribus. 
Pursh, 2. p. 540. 
Euthamia Tenuifolia. Nutt. 2. p. 162. 
Very similar to the preceding species, but every way smaller. 
Stem about two feet high. Leaves linear, scabrous along the margins, 
obscurely three-nerved, covered with glandular dots. Scales of the involu* 
crum viscid. Florets of the ray about ten , not much longer than the invo» 
lucrum. Seeds villous. 
Grows very common in dry pastures. 
Flowers September — October. 
Stem angled, sea- 
brous, with fastigiate 
branches; leaves very 
narrow, linear, expand- 
ing, obscurely 3-nerv- 
ed, scabrous, the axils 
leafy; corymbs termi- 
nal, fastigiate, heads 
clustered; florets of the 
ray scarcely as long as 
ERIGERON. Gen. Pl. 1287. 
Involucrum imbrica- 
tion. Corollulce radii 
lineares, plurimae. 
Pappus duplex, exte- 
rior minimus, interior 
pilosus. Receptaculum 
nudum. 
1. Ncdicaule. 
E. glabrum; foliis 
radicalibus spathulato- 
lanceolatis, acutis, sub- 
Involucrum imbri- 
cate. Florets of the 
ray linear, numerous. 
Pappus double, the ex- 
terior very small, the 
interior hairy. Recep- 
tacle naked. 
Glabrous; leaves of 
the root spathulate-lan- 
ceolate, acute, slightly 
