CRASSULACEAE (OBPINE l^AMILY) 443 



Low slender plant with basal rosettes; cyme loose, of 8 scorpiold 



branches 5. & N&oii. 



Coarse upright plants without rosettes ; flowers in a dense corymb. 



Follicles long-attenuate 8. iS. telepMoides. 



Follicles abruptly pointed 9. 5. purpureum. 



Flowers dioecious, mostly 4-merous and 8-androus 10. A rosewm. 



1. S. iCRE L. (MossT S.) Spreadingon the ground, moss-like; leaves yery 

 small, alternate, imbricated on the branches, ovate, very thick; petals yellow. — 

 Escaped from cultivation to rooky roadsides, etc., e. Que. to Ont., and Va. 

 June, July. - (Nat. from Eu.) 



2. S. NuttalliJLnum Raf. Annual ; stems simple or branched from the base, 

 5-10 cm. high ; leaves flat or teretish, scattered, oblong, 4-6 mm. long ; petals 

 rather longer than the ovate sepals; carpels at length widely divergent. (S. 

 Torreyi Don.) — Dry ground. Mo. to Ark. and Tex. May. 



3. S. pulchfillum Miohx. Stems ascending or trailing, 1-3 dm. high ; leaves 

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

 flowered; petals rose-purple. — On rocks, Va. to Ga., w. to Ind^, e. Kan., and 

 Tex. ; also cultivated. May, June. 



4. S. ternitum Miohx. Stems spreading, 7-16 cm. high ; leaves flat, the 

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

 3-spiked, leafy; petals white. — Kocky woods, Ct. to Ga., w. to Mich., Ind., and 

 Tenn. May. 



5. S. Nivii Gray. Stems spreading, simple (7-13 cm. high); leaves all 

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

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

 petals white, pointed. — Rocks, mts. of Va. to Ala. and 111. May, June. 



6. S. STOLONfFERCM Gmel. Low perennial, with stoutish decumbent stems, 

 the flowering branches ascending, 1-2 dm. high ; leaves opposite, obovate, cre- 

 nate above the cuneate base ; cyme rather dense, the short branches numerous ; 

 flowers about 1 cm. broad ; petals pink or purplish. — Roadsides and fields, 

 local, N. S. and Me. June, July. (Introd. from Asia.) 



7. S. EEPL^xuM L. Glabrous, erect, 3 dm. high ; leaves crowded, cylin- 

 dric, subulate-tipped, spreading, or reflexed; flowers yellow, pediceled. — Local, 

 6. Mass. and w. N. Y., rare. (Adv. from Eu.) 



8. S. telephioides Michx. Stems ascending, 1.5-3 dm. 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 

 style. — Sandstone knobs and cliffs, from w. N. Y. to n. Ga. and lU. Aug. , Sept. 



9. S. puRPiiREnM Tausch. (Garden O., Live-for-ever.) Stems erect, 6 

 dm. high, stout ; leaves oval, obtuse, toothed ; cymes compound ; petals purple, 

 oblong-lanceolate ; follicles abruptly pointed with a short style. {S. Telephium 

 Man. ed. 6, not L. ; S. Fabaria Koch.) — Rocks and banks, escaped from culti- 

 vation in some places. Aug., Sept. (Introd. from Eu.) 



10. S. rbseum (L.) Scop. (Roseroot.) Stems erect, 1.2-2.5 dm. high; 

 leaves oblong or oval, smaE ; flowers in a close cyme, greenish yellow, or the 

 fertile turning purplish. {8. Shodiola DC. ; Bhodiola rosea L.) — Greenl. and 

 Lab., along the coast to cliffs of e. Me. ; also locally at Chittenango Palls, N. Y. 

 {House) and on ollfls of Delaware R., Pa. May, June. (Eu.) 



4. SEMPERViVUM L. Houselebk 



Calyx-lobes, petals, and many-seeded carpels 6-many. Stamens usually 

 twice as numerous. — Succulent perennials with imbricated leaves and cymose- 

 paniculate yellow or purple flowers. {Semper, ever, and vivus, alive, from the 

 tenacious vitality.) 



1. S. tect6rum L. (Hen-and-chiokens.) Leaves of the dense basal and 

 lateral rosettes (on short thick offsets) ovate, acute, ciliate but othervrise gla- 

 brous ; those of the stem more oblong, clammy-pubescent ; flowers rose-purple 

 — Often planted, and persisting long after or escaping from cultivation. (Introd, 

 from Eu.) 



