150 CRASSULACE^E. (ORPINE FAMILY.) 



with the petals. Ovaries as many as the sepals, separate or united below. 

 Carpels several-seeded, opening along the inner suture. Seeds anatropous. 

 Embryo straight, in thin albumen. 



Synopsis. 



1. SEDUM. Carpels distinct. Sepals 4-5. Stamens 8 or 10. 



2. DIAMORPIIA. Carpels united at the base. Sepals 4. Stamens 8. 



3. PENTHORUM. Carpels united above the middle. Sepals 5. Stamens 10. 



1. SEDUM, L. ORPINE. STONE-CROP. 



Sepals 4 -5. Stamens 8 or 10. Carpels distinct, many-seeded, with an en- 

 tire scale at the base of each. Herbs smooth and fleshy. 



1. S. telephioides, Michx. Stem stout, erect or ascending, very leafy 

 throughout ; leaves alternate, oblong-obovate, toothed or entire ; the lower ones 

 mostly tapering into a petiole, the upper sessile ; cymes compact, erect, many- 

 flowered; petals flesh-color, ovate-lanceolate, acuminate; stamens 10; carpels 

 acuminate, pointed with the slender style. Dry rocks, along the mountains, 

 Georgia, and northward. June. Stem 7' - 1 2' high. Leaves 1 ' - 1 ' long. 



2. S. ternatum, Michx. Stems low (3' - 8'), branching at the base, ascend- 

 ing ; lowest leaves crowded, spatulate or obovate, 3 in a whorl ; the upper ones 

 scattered, oval or lanceolate ; cyme composed of 3 recurved branches ; stamens 

 8, those of the central flowers 10. Mountain-rocks, Georgia, Tennessee, and 

 northward. May and June. 1J. Flowers white. 



3. S. pulchellum, Michx. Stems ascending (4' -12' long) ; leaves very 

 numerous, alternate, linear, obtuse; cyme composed of several recurved or 

 spreading branches ; flowers pale purple ; sepals much shorter than the petals ; 

 stamens 8, those of the central flowers mostly 10; carpels tapering into the long 

 and slender style. With the preceding. May and June. 



4. S. Nevii, Gray. Stems low (3' -5'), ascending; leaves alternate, scat- 

 tered, linear-clavate, obtuse ; flowers sessile, scattered along the widely spread- 

 ing or recurved branches of the simple cyme ; bracts linear, longer than the 

 flowers ; sepals linear-lanceolate, acutish, as long as the lanceolate white petals ; 

 stamens 8, shorter than the petals ; anthers purplish-brown ; carpels tapering 

 into the short subulate style. Rocky cliffs at Tuscaloosa, Alabama, ~Eev. R. 

 D. Nevius. April and May. 



2. DIAMOKPHA, Nutt. 



Sepals 4, very short. Petals 4, oval, concave. Stamens 8. Carpels 4, united 

 below the middle, at length spreading, 4-8-seeded. A small (l'-4') succu- 

 lent biennial herb, branching from the base. Leaves terete, fleshy. Flowers 

 white. 



1. D. pusilla, Nutt. On flat rocks in the upper districts, Alabama to 

 North Carolina. March and April. 



