34. CRASSTJLACEJE. 125 



long as their tube.— E. B. 351.— Styles longer than the stamens. 

 St. repeatedly dichotomous, green. Fl. green, often solitary in 

 the forks of the stem, or densely corymbose. — Sandy fields. A. 

 VI.-VIII. 



2. S. perennis (L.) ; decandrous, segments of the calyx of the 

 fr. connivent obtuse rounded with a broad membranous margin. 

 — E. B. 352. — Styles usually shorter than the stamens. St. 

 nearly simple or irregularly branched, procumbent, glaucous, at 

 length reddish. Fl. variegated with green and white. L. erect, 

 directed to one side. — Sandy fields in Norfolk and Suffolk. 

 Stanner rocks, Radnorshire. P. VI. — VIII. E. 



Order XXXIV. CRASSULACE.E. 



Sep. 3 — 20, more or less united at the base. Pet. the same 

 number, regular, free or shghtly connected, inserted at the base 

 of the calyx. Stam. inserted with the pet. and the same or twice 

 their number. Hypogynous scale 1 at the base of each carpel or 

 obsolete. Carpels the same number as and opposite to the pet., 

 free or slightly connected, 1 -celled. Fr. of several follicles open- 

 ing on their face, with slightly albuminous seeds on the inner 

 suture. 



1. TiLL^A. Sep., pet., and stam. 3—4. Carp. .3 — 4, con- 

 stricted in the middle and 2-seeded. Hypogynous scales 0. 



2. Sedum. Sep. and pet. 5, rarely 4 or 6. Stam. 10 or 12. 

 Hypogynous scales entire. Carp. 5 or 6, many-seeded. — 

 S. Rhodiola has 4 sep., 4 pet., 8 stam., 4 carp., and is sub- 

 dicEcious. 



[3. Sempervivum. Sep. 6—10. Pet. the same. Stam. 

 twice as many as the pet. Hypogynous scales laciniated. 

 Carp, as many as the petals.] 



4. Cotyledon. Sep. 5. Pet. cohering into a tubular b-cleft 

 corolla. Stam. 10, inserted on the corolla. Hypogynous 

 scales 3. Cai'p. 5. 



1 . TiLL^A Linn. 



1. T. muscosa (L.); st. branched and decumbent at the base, 

 fl. axillary sessile trifid.— J5. B. 116. R. I. t. 191.— Very mi- 

 nute, about 1 in. long, reddish. L. opposite, oblong, obtuse, 

 concave above, connate. Sep. ovate or lanceolate, acute, bristle- 

 pointed. Pet. nearly subulate, white tipped with red. — On barren 

 sandy heaths. A. VI. VII. E. 



