118 ORDER 40. CRASSULACE^E. 



Sepals 3 20, more or less united at base, persistent. Petals as many as the 

 sepals. Stamens as many as the petals, and alternating with them, or twice 

 as many. Ovaries as many as the petals. Filaments distinct. Anthers 

 2-celled, bursting lengthwise. Ffuit distinct follicles or a capsule, many- 

 seeded. Figs. 8, 9, 468. 



I Carpels distinct, forming a circle of follicles. . .(*) 



* Petals distinct. a Flowers all 3- or 4-parted. Stamens 3 or 4 TILI.JEA. i 



u Flowers 5-, or 4- and 5-parted. Stamens 8 or 10 SEDUM. > 



a Flowers all 5-parted. Stamens 5 CKASSULA. 3 



a Flowers 6-12-parted, with cleft hypogynous scales SEMPEKVIVUM. 4 



Petals united at base. !> Flowers 4-parted. Stamens 8 . .BRYOPHYI.LUJC. 5 



b Flowers 5-parted. Stamens 5 ROCHKA. 6 



b Flowers 5-parted. Stamens 10 ECHIKVEKIA. 7 



g Carpels united into a many-seeded capsule... (x) 



x Flowers 4-parted, with 8 stamens DIAMORPHA. 8 



x Flowers 5-parted, with 10 stamens. Petals often wanting PENTHOUUM. 9 



1. TILLJEA, MX. PIGMY-WEED. Calyx of 3 or 4 sepals united at base. 

 Petals 3 or 4, equal. Sta. 3 or 4. Caps. 3 or 4, distinct, follicular, opening 

 by the inner surface, 2- or many-seeded. & Very small. Lvs. opposite. 



T. simplex Nutt. St. ascending or erect, rooting at base ; Ivs. connate at base, linear- 

 oblong, fleshy ; flowers axillary, solitary, subsessile, their parts in 4'e ; 'pet. greenish ; 

 carpels 8-10-seeded. (T) Muddy banks, Ct. to Md. 12'. July Sep 



2. SEDUM, L. STONE-CROP. Sep. 4 or 5, united at base. Pet. 4 or 

 5, distinct, spreading. Sta. 8 10. Carp. 4 5, distinct, many-seeded, with 

 an entire scale at the base of each. U Lvs. fleshy. Inflorescence cymous. 



Fls. in scorpoid racemes or spikes, or axillary, the latter often 4-parted Nos. 1 4 



Fls. in corymbous cymes, all 5-parted. a Leaves mostly alternate Nos. 5 7 



a Leaves opposite, and whorled No. 8 



1 S. tcriiatiim MX. Leaves scattered, flat, obovate, the lower mostly in whorls of 3, 

 the upper spatulate ; spikes 3, rarely 2 4, radiating, sectind ; central flower 5-parted, 

 the rest 4-parted, white. Damp woods. 38'. May, June. 



5i S. TNevii Gr. Stem weak, branched, 35'; leaves alternate, imbricated, small, obo 

 v;ite-spatulatu ; petals lance-linear, white. Mts., Ya. (Porter), and S. June, July. 



3 S. pnlcliellum MX. Leaves linear, alternate, crowded ; spikes radiating, dense 



flowered, secund, central flower 5-, the others 4-parted, rose-purple. Rocke, Va. to 

 Tex. 412'. May July. Very pretty in gardens. 



4 S. acre L. English Moss. Procumbent, diffuse ; leaves very small, fleshy, crowded, 



alternate, appressed ; cyme leafy, somewhat trifid ; fls. yellow. Gardens. Jl. Eur. 



5 S. Rliodiola DC. Stems clustered, erect. 5 1(K ; leaves mostly scattered, obovate, 



with several angular teeth or entire, crowded ; flowers 4-parted, in a small cyme at 

 top, yellowish, dioecious. Rocks, Penn. (Prof. Porter), Me., and Can. 



6 S. tclepliioides MX. Ascending, tall ; Ivs. round-oval to lance-oval, narrowed to 



the baec, subdentate. alternate ; pet. acuminate, pink. Rocks, Md., and S. Stems If, 

 leaves 12'. Flowers numerous, in a terminal branching cyme. Juue. 



7 S. Telepliium L. Live-fwever. Clustered, erect, very leafy ; Ivs. obVng-ovate, ob 



tuse, dent-serrate : corymb dense, leafy, blue-purple. Waste grounds, &e. Stems l-2 

 round, simple, with a compact pale-purple cyme at top. August. Europe. 



8 S. SIEBOLBII. Lvs. opposite, or in 3's, roundish, glaucous, sessile ; cymes dersc, leafy. 



