KUPATORIUM. TUSSILAGO. 
1G7 
* TUBULI FLORAE. Ilcnn. florets tubular, regular, teeth 
4 or 5. 
Tribe I. Eupatoiiacm. 
Style of the hermaphrodite florets cyliudrical with elongated 
slightly clavate hraiiehes whieh arc downy above ; stigmatic lines 
hnt little j)roininent often not extending as far as the middle of 
the branehes. 
Section 1. EUPATORIEJE. Heads homogamous (florets 
all hermaphrodite). — Paj)pus pilose and rough. 
1. Eupatorium Linn. 
1. E. cannahinum (L.); 1. in 3 or 5 deep lanceolate serrated 
segments the middle one longest. — E. B. 428. — St. herbaceous, 
erect, striated, scabrous, 2 — 3 feet high. Heads in a fastigiate 
corymb, 5 — 6-flowered ; involucral scales about 10 : 5 exterior 
short obtuse. Florets redchsh-purple. L. downy. Herb slightly 
aromatic. — Banks of streams. P. VIII. IX. Hemp- Agrimony . 
Section 2. TUSSILAGIHEH^. Heads heterogamous or sub- 
dioecious. 
2. Petasites Gaert. 
I. P. vulgaris (Desf.); 1. roundish-cordate unequally toothed 
downy beneath : basal lobes ap]iroximate, stigmas of the herma- 
phrodite florets short ovate. — Tussilago Petasites Sm., E. B. 431 
and 430. St. 2. 13. — Thyrsus long and lax in the female plant, 
ovate and dense in the male. Root thick, creeping e.xtensively. 
FI. ai)])earing before the 1., on stout erect stalks whieh are clothed 
with concave tumid petioles either leafless or with a small limb. 
L. very large, radical, idtimately often 3 feet broad, glabrous 
above. — In marshy places. P. IV. Butter-bur. 
3. Tussilago Linn. 
1. T. Farfara (L.) — E.B. 429. St. 2. 10. — Root creeping ex- 
tensively. FI. appearing before the 1., in bright yellow solitary' 
heads, erect in blossom and seed, droojiing before and after 
flowering, their stalks clothed with scalelike smooth bracts. L. 
roundish-cordate, angular, toothed, downy beneath. — Moist chalky 
and clay soils. P. III. IV. Coltsfoot. 
Tribe II. Asteroidece. 
Style of the hermaphrodite florets cylindrical with linear branches 
which are flat and equally and minutely downy on the outer surface 
and have narrow prominent stigmatic hnes throughout. 
