CRASSULACE.fi. (ORPINE FAMILY.) 177 



2. TILL-2EA, Mich. 



Sepals, petals, stamens, and pistils 3 or 4. Pods 2 - many-seeded. Very 

 small tufted annuals, with opposite entire leaves and axillary flowers. (Named 

 in honor of Michael Angela Tilli, an early Italian botanist.) 



1. T. simplex, Nutt. Booting at the base (1-2' high); leaves linear- 

 oblong ; flowers solitary, nearly sessile ; calyx half the length of the (greenish- 

 white) petals and the narrow 8-1 0-seeded pods, the latter with a scale at the 

 base of each. Muddy river-banks, Mass, to Md. July - Sept. 



3. S E D U M, Tourii. STONE-CROP. ORPINE. 



Sepals and petals 4 or 5. Stamens 8 or 10. Follicles many -seeded ; a little 

 scale at the base of each. Chiefly perennial, smooth, and thick-leaved herbs, 

 with the flowers cymose or one-sided. Petals almost always narrow and acute 

 or pointed. (Name from sedeo, to sit, alluding to the manner in which these 

 plants fix themselves upon rocks and walls.) 



* Floicers perfect and sessife, as it were spiked along one side of spreading flower- 



ing branches or of the divisions of a scorpioid cyme, the first or central flower 

 mostly 5-merous and IQ-androus, the others often 4-merous and 8-androus. 

 t- flowers ivhite or purple. 



1. S. pulchellum, Michx. Stems ascending or trailing (4 -12' high); 

 leaves terete, linear-filiform, much crowded ; spikes of the cyme several, densely 

 flowered ; petals rose-purple. Va. to Ga., west to Ky., E. Kan., and Tex. ; 

 also cultivated in gardens. July. 



2. S. Nevii, Gray. Stems spreading, simple (3 - 5' high) ; leaves all alter- 

 nate, those of the sterile shoots wedge-obovate or spatulate, on flowering stems 

 linear-spatulate and flattish ; cyme about 3-spiked, densely flowered ; petals 

 ivhite, more pointed than in the next; the flowering 3 or 4 weeks later; leaves 

 and blossoms smaller. Rocky cliffs, mountains of Va. to Ala. 



3. S. tern&tum, Michx. Stems spreading (3 -6' high); leaves flat, the 

 lower whorled in threes, wedge-obovate, the upper scattered, oblong ; cyme 3-spiked, 

 leafy; petals white. Rocky woods, N. Y. to Ga., west to Ind. and Tenn. 



-)- -i- Flowers yellow. 



S. ACRE, L. (Mossv STONE-CROP.) Spreading on the ground, moss-like ; 

 leaves very small, alternate, almost imbricated on the branches, ovate, very 

 thick; petals yellow. Escaped from cultivation to rocky roadsides, etc. 

 July. (Nat. from Eu.) 



4. S. Torreyi, Don. Annual ; stems simple or branched from the base 

 (2-4' high) ; leaves flat or teretish, scattered, oblong, 2-3" long; petals rather 

 longer than the ovate sepals ; carpels at length widely divergent. Mo. to 

 Ark. and Tex. 



* * Flowers in a terminal naked and regular cyme or cluster, more or less pedun- 



cled ; leaves flat, obovate or oblong, mostlij alternate. 

 t- Flowers perfect, 5-merous, IQ-androus. 



5. S. telephioides, Michx. Stems ascending (6-12' high), stout, leafy 

 to the top ; leaves oblong or oval, entire or sparingly toothed ; cyme small ; 

 petals flesh-color, ovate-lanceolate, taper-pointed ; follicles tapering into a slender 

 sti/le. Dry rocks, from western New York to N. Ga. and S. Ind. June. 



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