228 CRASSULACE^. [Penthorium. 



supremis linearibus, cyma terminali foliosa trichotoma, florlbus pedicellatis lO-andris, petalls 

 lineari-lanceolatis calyce multo longloribus. 



Hab. Common on dry rocky places of the Columbia and Salmon Rivers. Douglas. — The lower decumbent 

 part of tlie stem sends forth fibrous roots, the rest is erect, simple, leafy. Leaves, according to Mr. Douglas, 

 for they are almost destroyed in drying, obovato-spathulate, gradually smaller and narrower upwards. 

 Flowers yellow, very similar to those of S, stenopetalum, as far as can be judged from the dried state of 

 tile plant. 



3. 'S'. Douglasii; caule erecto supenie ramis recurvis prolifero, foliis lineari-subulatis 

 acutissimis intus planis dorso subcarinatis margine siccitate membranaceis, cyma dichotoma, 

 florlbus sessilibus decandris, petalis anguste lanceolatis calyce duplo longioribus. ' 



J 



Hab. Common on rocky places of the Columbia to the mountains. Douglas. — Flowers resembling 

 those of S. spathulifoUum and *S^ stenopetalum, as far as can be judged from the dried specimens; but the 

 leaves are widely different, and of such a nature that I am doubtful whether the plant should be referred to 

 this or to the third section : those at the base of the stem, and those on the numerous proliferous shoots on 

 the upper part of the stem, remain attached by their broad and almost membranaceous bases, they are 

 thickened in the middle, but thin and scariose at the margin. The root is annual ; the plant a span high : 

 the proliferous shoots, h hich are entirely confined to the upper half, an inch long. 



* # 



PlanifoUa^ florlbus albis. 



4. iS. ternatum; foliis planis glabris integerrimis, inferioribus obovatis basi attenuates 

 ternato-verticillatis, summis sessilibus inordinatis, cyma trifida, floribus secus ramos sessili- 

 bus, petalis oblongis acutis. Z)C. — Mich. Am, v, L p, 277. Fursh, Fl. Am. v, I. p. 324. 

 Elliott, Carol v. \,p, 529. Torrey, Fl. of Un. St. v. 1. p. 463, De Cand. Prodr. v. 3. p. 

 403. Bot. Mag. t. 1977. Bot. Reg. t 142. 



Hab, 



* # # 



Teretijblia, floribus flavis. 



5. S. stenopetalum; caulibus assurgentibus, foliis sparsis congestis adnato-sessilibus 

 compresso-subuiatis acutis, cyma terminali trichotoma dichotoma, spicis recurvatis, floribus 

 sessilibus decandris, petalis linearibus calyce mid to longioribus. Pursh, Fl. Am. v, I. p. 

 234. De Cand. Prodr. v. 3. p. 408. 



Hab, Banks of Clarcke's River and the Kooskoosky. M. Lewis. Frequent on the east side of the Rocky 

 Mountains. Drummond. — This very distinct species of Sedum has been cultivated in the Botanic Gardens of 

 Edinburgh and Glasgow, from seeds brought home by Mr. Drummond. 



(Crassulace^ Anomaly. DC.) 



2. PENTHORIUM. Liim. 



Calyx 5-partitus. Petala 5. Stamina 10. Squamce ? Carpella 5 basi inter se 

 concreta in capsulam 5-rostratam 5-locuIai-em apice 5-gonam et sub rosti'is deliiscentem. 

 Semina 00 minima, placentae latiusculse undique adfixa, forsan exalbuminosa, — Herbse 



