392 DECANDRIA— PENTAGYNIA. Sedum. 



of Clusius, adopted by Lobel and Gerarde, are sufficiently ex- 

 pressive. 



10. S. rupestre. St. Vincent's Rock Stonecrop. 



Leaves glaucous, spurred at the base ; those of the branches 

 awl-shaped, erect, in five close rows. Flowers imper- 

 fectly cymose. Segments of the calyx elliptical, obtuse. 



S, rupestre. Linn. Sp. PI. 6\8. fVilld.v.2.764. FLBrA90. Engl. 

 Bot. V.3. t.l70. 



S.rupestre repens, foliis compressis. Dill. Elth. 343. t. 256. f. 333. 



S. minus, a rupe S. Vincentii. Raii Syn. 270. ed. 2. 1 52. 



On rocks, but rare. 



On St. Vincent's rocks, Bristol. Mi: Goodyer. On Chedder rocks, 

 Somersetshire. Dillenius. Upon walls about Darlington. Mr. 

 E. Robson. 



Perennial. July. 



Rather smaller than the last. Leafy branches very numerous, erect, 

 crowded, obtuse, thickly clothed with upright, awl-shaped, 

 shortish, acute, very glaucous leaves, imbricated in 5 rows ; 

 spurred and unconnected at the base : those on the flowering 

 stems scattered, broader and more tumid, often red. The stem 

 also is mostly red, especially its lower recumbent part. Fl. ra- 

 ther corymbose than cymose. Cal. very glaucous, with a tinge 

 of red ; its segments short, rounded, obtuse. Petals bright yel- 

 low, as well as the stamens and pistils. All the parts o( the Jiower 

 are liable to an increase of number, even in wild specimens. 



U.S. Forsterianum. Welsh Rock Stonecrop. 



Leaves spurred at the base, those of the branches semicy- 

 lindrical, bluntish, pointed, spreading, in many rows. 

 Flowers cymose. Segments of the calyx elliptical, ob- 

 tuse. 



S. Forsterianum, Engl. Bot. v. 26. t. 1802. Comp. 71. 



On rocks in Wales. 



At the fall of the Rhydoll, near the Devil's bridge, Cardiganshire. 

 Mr. E. Forster. On the rocks of Hisvae, overhanging the little 

 valley of Nant-phrancon. Dr. Richardson and Mr. Llwyd. 



Perennial. July. 



Very distinct from S. rupestre, with which it has been confounded, 

 in the bright-green colour of its foliage, which is even less glau- 

 cous than represented in Engl. Bot, ; but the short rosaceous 

 tufts of spreading leaves, which are blunt, with a small bristly 

 point, more essentially distinguish it. The Jlowers grow in a true 

 cyme, all the primary stalks springing from one point. The calyx 

 in this and the last has more shallow, short, elliptical and obtuse 



