60 CRASSULACE^E. [Sedum. 



them, placed in a circle, distinct, 1 -celled, tapering into the 

 stigmas. Carpels several, 1-celled, opening longitudinally and 

 internally. Seeds attached to the margin of the suture, variable 

 in number. Albumen thin, fleshy. Embryo straight : radicle 

 turned towards the hilum. Succulent Jierbs or shrubs. Leaves 

 fleshy. Flowers in cymes, often unilateral. 



1. COTYLEDON. Linn. Pennywort. 



Calyx 5-parted. Corolla monopetalous, tubular, 5-cleft. Cap- 

 sules 5, each with a gland or nectariferous scale at its base. 

 Name from /COTI/X^, a cup, to which the leaves of some of the 

 species bear a distinct resemblance. 



Decandria. Pentagynia. 



1. C. Umbilicus, Huds. Wall Pennywort. Leaves peltate, 

 crenate, depressed in the centre ; stem with a (usually) simple 

 raceme of pendulous flowers ; upper bracteas minute, entire. 

 Br. Fl 1. p. 209. E. Fl. v..ii. p. 314. E. Bot. t. 25. Umbi- 

 licus pendulinus, De Cand. 



Rocks, walls, and old buildings, in rather elevated situations, Hill of 

 Howth, Killiney Hill, &c. Ft- June Aug. It .Whole plant suc- 

 culent. Stems from six inches to a foot high, rounded. Leaves mostly 

 radical. Flowers cylindrical, yellowish-green. 



2. SEDUM. Linn. Orpine or Stone-crop. 



Calyx in 5 (sometimes 4 8) deep segments, often resembling 

 the leaves. Petals 5, patent. Germens 5, each with a nec- 

 tariferous scale at its base. Name from sedo, to sit, from the 

 humble growth of these plants on their native rocks. 



Decandria. Pentagynia. 



sjc Leaves plane. 



1. S. Telephium, Linn. Orpine, or Live-long. Leaves oval- 

 oblong, plane, serrated ; corymbs leafy ; stems erect. Br. Fl 

 1. p. 209. E. Fl. v. ii. p. 315. E. Bot. t. 1319. 



Borders of fields and hedge banks near Carrigaline, County of Cork, 

 in a naturalized state ; Mr. J. Drummond. On an old ditch in the 

 glebe of Oldcastle, County of Cavan ; Rev. Mr. Halpin. Fl. July. 

 1. One to two feet high. Stem spotted. Leaves broad. Flowers 

 purple. Very unlike any of the following species, and having the habit 

 of Rhodiola rosea. 



* jjc Leaves terete. Flowers white or reddish. 



? S. dasyphyllum, Linn. Thick-leaved Stone-crop. Leaves 

 opposite (except on the flowering stems) ovato-globose, fleshy ; 

 panicles glutinous. Br. Fl. 1. p. 209 E. Fl. v. ii. p. 816. E. 

 Bot. t. 656. 



