TILLi:A. SEDrSI. 
129 
1. TiLL^A. Sep., pet, and stam. 3 — 4. Carp. 3 — 4, con- 
stricted in the middle and 2-seeded. Hj'pogynous scales 0. 
2. Sedtjm. Sej). and pet. 5, rarely 4 or 6. Stam. 10 or 12. 
Hypogynous scales entire. Cai-p. 5 or 6, many-seeded. — 
S. Rhudiola has 4 sep., 4 pet., 8 stam., 4 carp., and is sub- 
dioecious. ■ , , , 
[3. SEMPER■^^vuM. Sej). 6 — 10. Pet. the same. S^am. 
twice as many as the pet. Hypogynous - scales laciniatc 
Carp, as many as the petals.] 
4. Cotyledon. Sep. 5. Pet. cohering into a fuhdar .5-cleft 
corolla. Stam. 10, inserted on the corolla. Hypogynous 
scales 3. Carp. 5. , 
1. Till^'a Linn. 
1. T. mvscdsa (L.) ; st. branched and decumbent at the base, 
fl. axillary sessile trifid.— B. 116. H. I. t. 191.— Verj' mi- 
nute, about 1 in. long, reddish. L. opposite, oblong, "blunt, 
concave above, connate. Sep. ovate or lanceolate, acute, bristle- 
pointed. Pet. nearly subulate, white tipped with red. — On ban-en 
sandy heaths in the South and East. A. \1. Yll. E. 
2. Se'dum Linn. Stonecrop. 
* Root thick, many-headed. Leaves fiat. 
t Flowers yellow, subdicecious, 4-parted. Rhodiola Linn. 
1. S. Rhod'wla (DC.) ; root fleshy, 1. oblong smooth. — E. B. 
508. Rhodiola rosea Sm. — Fl. in a compact terminal cyme. 
Stam. 8. L. aciiminate, usually dentate in their upper half. 
Rhizome large, ha\-ing a remarkable smell. St. 6 — 8 m. high, 
simple. — Wet alpine rocks. P. VI. VH. Rose-root. E. S. I. 
tt Flowers white or purple, perfect, 5-parted. 
2. S. Telephium (L.); uppermost I. long-oval ienteite rounded 
at the base and sessile, lower 1. obovate or oblong narrowed be- 
low, coiymb dense, ovaries flattened and alightlj fnrrotced on the 
back.—JE. B. 1319. R. L 968.— St. 1—2 feet high. L. large, 
often orbicular. Pet. recun ed from the middle, faintly chan- 
neled at the end. Stam. 10. — [In >S'. maximum Sut., R. I. 969, 
St. 83. 7, the lower 1. are broad, the uppermost cordate at the 
base, the back of the ovaries convex.] — Hedge-banks and thickets. 
P. Vn. Vni. Orpim. Uve-long. E. S. 
3. iS". Fuhuna (Koch) ; 1. dentate oblong-teceofote or lanceo- 
late aU narrowed to a slight pcti';le, corymb dense, ovaries not 
furrowed. — St. 83. 9. — S. purpureum Tausch. — Resembling S. 
G 5 
