( 364 .) 
SE'DUM* *, 
Linnean Class and Order. DECA'NDRiAf, Pentagy'nia. 
Natural Order. Crassula'cea:, De Cand. — Lindl. Syn. p. 63. ; 
Introd. to Nat. Syst. of Bot. p. 161. — Rich, by Macgilliv. p. 514. — 
Loud. Hort. Brit. p. 516. — Don’s Gen. Syst. of Gard. and Bot. v. iii. 
p. 97. — Mack. FI. Hibern. p. 59. — Cra'ssula:, Juss. Diet. des. Sc. 
Nat. v. xi. p. 369. — Succule'.ntve, Linn. — Vent. Tabl. v. iii. p. 
271. — Sempervivas, Juss. Gen. PI. p. 307. — Sm. Gram, of Bot. 
p. 162. — Rosales; sect. Crassulinas; type, Crassulaceas ; 
Burn. Outl. of Bot. v. ii. pp. 614, 730, & 735. 
Gen. Char. Calyx (fig. 1.) inferior, of 1 sepal, in 5 deep, egg- 
shaped, pointed, usually turgid, permanent segments, often re- 
sembling the leaves. Corolla (see fig. 2.) of 5 spear-shaped, 
pointed," flat, generally spreading petals. Nectary (see fig. 5, a.) 
a minute scale, at the base of each germen, on the outer side. 
Filaments (see fig. 2.) 10, awl-shaped, spreading. Anthers round- 
ish. Germens (fig. 3.) 5, oblong, each tapering into a short spread- 
ing style. Stigmas bluntish. Capsules (fig. 4.) 5, compressed, 
pointed, spreading, notched towards the base, bursting along the 
inner margin. Seeds (fig. 6.) numerous, minute, arranged along 
the inner margin, at each side. 
The deeply 5-cleft calyx ; the corolla of 5 petals ; and the 
5 capsules , each with a nectariferous scale at its base ; will dis- 
tinguish this from other genera in the same class and order. 
Eleven species British. 
SE'DUM ACRE. Acrid Stonecrop. Biting Stonecrop. Wall- 
pepper. Stone-hot. Pricket. Mouse-tail. Country Pepper. Jack 
of the Buttery. 
Spec. Char. Leaves alternate, nearly egg-shaped, uprightish, 
smooth, gibbous, fleshy, spurred at the base. Cymes trifid, smooth, 
leafy. Flowers of a golden-yellow, sessile along the branches of 
the cyme. 
Engl. Bot. t. 839. — Curt. FI. Lond. t. — Woodv. Med. Bot. t. 231. — Linn. Sp. 
PI. p. 619. — Huds. FI. Angl. (2nd edit.) p. 196. var. a. — Willd. Sp. PI. v. ii. pt. I. 
p. 767. — Sm. FI. Brit. v. ii. p. 487.; Engl. FI. v. ii. p. 317. — With. (7th edit.) p. 
558. — Gray’s Nat. Arr. v. ii. p. 541. — Lindl. Syn. p. 64. — Hook. Brit. FI. p. 210. — 
Macr. Man. Brit. Bot. p. 88. — Liglitf. FL Scot. v. i. p. 235. — Sibth. FI. Oxon. p. 
144. — Abb. FI. Bedf. p. 99. — Thornt. Fam. Herb. p. 462, with a figure. — Davies’ 
Welsh Bot. p. 43. — Purt. Midi. FI. v. i. p. 218. — Relh. FI. Cant. (3rd ed.) p. 181.— 
Hook. FI. Scot. p. 140.— Grev. FI. Edin. p. 101.— FI. Dev. pp. 76 & 185.— Johnst. 
FI. of Berwick, v. i. p. 99. — Winch’s FI. of Northumbl. and Durh. p. 29. — Don’s 
Gen. Syst. of Gard. and Bot. v. iii. p. 119. — Walker’s FI. of Oxf. p. 126. — Lindl. 
FI. Med. p. 276. — Perry’s PI. Varvic. Selects!, p. 41. — Bab. FI. Bath. p. 18. — Dick. 
FI. Abred. p. 38. — Irv. Lond. FI. p. 171.— Luxf. Reig. FI. p. 40. — Cow. FI. Guide, 
p. 47. — Mack. Catal. PI. Irel. p. 44.; FI. Hibern. p. 61. — Sedum parvum acre 
flore luteo, Ray’s Syn. p. 270. — Vermicularis, sive JUecebra minor acris, 
Johnson’s Gerarde, p. 517. 
Localities. — On walls, roofs, rocks, and dry sandy ground ; common. 
Fig. 1. Calyx. — Fig. 2. A Flower. — Fig. 3. Calyx, Pistils, and Nectaries. — 
Fig. 4. Capsules. — Fig. 5. A separate Germen, with the nectary (a.) at its base. — 
Fig. 6. A Seed. 
* From sedeo, L. to sit ; from the humble growth of these plants on their native 
rocks. Hooker. + See folio 37, note t. 
