CRASSULACE.E. (ORPIXE FAMILY.) 149 



1. PARNASSIA, Touru. Grass of Parnassus. 

 Characters same as the order. 



1. P. Caroliniana, Michx. Leaves broadly ovate or cordate-ovate; 

 cauliue one near the base of the stem, clasping; petals oval, sessile, with im- 

 pressed greenish veins ; sterile stamens by threes, distinct almost to tlie base, 

 2-3 times as long as the recurved fertile ones. — Damp soil, Florida, and 

 northward. Oct. -Xov. — Stem 12'- 18' high. Flowers 1' wide. 



2. P. asarifolia, Vent. Leaves reuiform ; cauliue one near the middle 

 of the stem, clasping ; petals broadly ovate, short-clawed ; sterile stamens by 

 threes. — Mountains of Georgia and North Carolina. August - Sept. — Flow- 

 ers larger than iu No. 1 . 



Order 52. CKASSULACE^. (Orpine Family.) 



Succulent herbs, with exstipulate leaves, and regular perfect and 

 mostly cymose flowers. Sepals 3 - 20, more or less united at the 

 base, j)ersistent. Petals as many as the sepals, inserted on the base 

 of the calyx, imbricated in the bud, rarely united, or wanting. Sta- 

 mens as many, or twice as many, inserted with the petals. Ovaries 

 as many as the sepals, separate, or united below. Carpels several- 

 seeded, opening along .the inner sutoi-e. Seeds anatropous. Embryo 

 straight, in thin albumen. 



Synopsis. 



* Carpels separate, opening within. 

 1. SEBUM. Sepals and petals 4 - 5. Stamens 8 or 10. Carpels many-seeded. 

 2 TILL^A Sepals and petals 3 - 4. Stamens 3 or 4. Carpels "2 - several-seeded. 



3. BRYOPHYLLUM. Calyx inflated. Corolla monopetalous. Stamens 8. 



* * Carpels partly united. 



4. DIAMORPHA. Calyx 4-cleft. Petals 4. Carpels opening witliout. 



5. PENTHORUM. Calyx 5-cleft. Petals 5. Carpels opening across. 



1. SEDUM, L. Orpixe, Stoxecrop. 



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

 entire scale at the base of each. — Herbs smooth and fleshy. 



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

 througliout ; leaves alternate, oblong-obovate, tootlied or entire ; the li:)wcr 

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

 man}'-flowered ; petals flesh-color, ovate-lanceolate, acuminate ; stamens 1 ; 

 carpels acuminate, pointed with the slender style. — Dry rocks, along the 

 mountains. .Tune. — Stem 7'- 12' high. Leaves I'-l^'long. 



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

 cending; 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. May- June. 

 11 — Flowers white. 



