SEDACEAE 497 



1. Sedum Nuttallianum Raf. Annual, slender, glabrous. Stems 3-5 cm. tall, often 

 branched at the base or above : leaves scattered ; blades nearly terete, obtuse, 3-9 mm. 

 long, sessile : branches of the cymes 3-5, 1-6 cm. long : flowers rather few : sepals oblong- 

 ovate, nearly 2 mm. long, obtuse : petals yellow, broadly lanceolate, 3 mm. long, acutish : 

 follicles 3.5 mm. long, diverging, each tipped with the subulate style. 



In dry soil, Missouri to Arkansas and Texas. Spring. 



2. Sedum pulch6llum Michx. Annual or perennial, bright green. Stems usually 

 branched at the base, the branches 5-30 cm. tall, leafy above : leaves numerous ; blades terete 

 or nearly so, linear, 1-2 cm. long, obtuse : branches of the cymes 2-6 cm. long : flowers 

 numerous: sepals linear or linear-oblong, 2-2.5 mm. long, obtuse: petals deeper pale 

 purple, oblong, hardly twice as long as the sepals : stamens 8 or those of the central 

 flowers sometimes 10 : follicles slender, about 5 mm. long, tapering into the subulate styles. 



On rocks, Virginia to Missouri, Georgia and Texas. Spring and summer. 



3. Sedum pusillum Michx. Annual, glabrous, pale green. Stems 2-10 cm. tall, 

 simple or branched, the branches corymbose : leaves alternate ; blades nearly terete, 2-6 

 mm. long, obtuse, sessile : cymes open, the branches 1-3 cm. long : flowers several : sepals 

 5, broader than long : petals white or pink, ovate, 2.5 mm. long, obtuse often hooded at the 

 apex : stamens 8 : follicles spreading, 4 mm. long, acute. 



On granite rocks, South Carolina and Georgia. Spring. 



4. Sedum Nevii A. Gray. Perennial, pale green, forming wide mats. Stems de- 

 cumbent, 2-14 cm. long, very leafy, simple or branched, the flowering stems longer than 

 the sterile ones: leaves alternate; blades club-shaped or spatulate, 5-15 mm. long, obtuse: 

 flowers several, about 1 cm. broad : branches of the cyme usually 2-6 cm. long : sepals 

 linear-lanceolate, acutish : petals white, lanceolate, acute, as long as the sepals or slightly 

 longer : stamens 8, shorter than the petals : anthers purple-brown : follicles slender, 2.5- 

 4.5 mm. long, each terminating in the bristle-like style. 



On banks in woods, Virginia to Alabama. Spring. 



5. Sedum ternatum Michx. Perennial, matted, bright green. Stems decumbent, 

 3-15 cm. long, often creeping, branching below : leaves mostly in whorls of 3's, those on 

 sterile branches crowded, those on fertile branches distant ; blades varying from spatulate 

 to suborbicular, sessile or nearly so : flowers perfect : branches of the cymes 3-10 cm. 

 long, spreading or recurved : sepals linear, 4 mm. long, obtuse : petals white, oblong- 

 lanceolate, about 7 mm. long, obtuse : stamens 8, or in the central flowers 10 : follicles di- 

 verging, 5.5-8 mm. long, each tipped with the subulate style. 



On rocks or shady banks, New York to Indiana and in or near the mountains to Georgia and Ten- 

 nessee. Spring. 



6. Sedum telephioidea Michx. Perennial, stout, glaucous. Stems sometimes 

 tufted, 1-4 dm. tall, simple below, corymbosely branched above : leaves not approximate ; 

 blades oval to ovate, 2-7 cm. long, coarsely toothed or nearly entire, the lower ones usually 

 short-petioled, the upper ones sessile : cymes terminal, corymbose : flowers several, not 

 crowded : sepals linear-lanceolate, nearly 3 mm. long, acute : petals white or pink, oblong, 

 about 5 mm. long, acute: stamens 10 : follicles 3.5-4 mm. long, erect, slender-beaked. 



On dry rocks, western New York to Indiana, Maryland and Georgia. Summer. 



7. Sedum Roan6n.se Britton. Perennial, stout, deep green. Stems tufted, 1-4 dm. 

 tall, simple : leaves approximate ; blades elliptic, narrowly cuneate or almost linear, 1-3.5 

 cm. long, acutish or obtuse, entire or nearly so, sessile : flowers dioecious, in dense terminal 

 cymes, purple, the staminate with 8 or rarely 10 stamens, the pistillate with 4-5 carpels : 

 sepals 4 or rarely 5, linear, about 1 mm. long, obtuse : petals obrong-linear, 3 mm. long, 

 obtuse : follicles nearly erect, 8-12 mm. long, the tips slightly spreading. [S. Rhodiola 

 Chapm., not DC.] 



On cliffs, Roan Mountain, North Carolina. Spring and summer. 



8. Sedum Texanum J. G. Smith. Perennial, glabrous. Stems 1.5-2 dm. tall, 

 sparingly branched from near the base : leaves few, alternate ; blades fleshy, obovate to 

 ovate or ovate-lanceolate, 2-2.5 cm. long, entire, acute or acuminate, or some of them 

 blunt, sessile : flowers in spike-like, raceme-like or panicle-like cymes, the individual 

 flowers or the flower-clusters remote : sepals 5, oblong, acute : petals 5, pinkish yellow, 

 3-3.5 mm. long, often slightly broadened upward, ^thickened and apiculate at the apex : 

 follicles inflated, subulate-tipped. 



In chapparal, Corpus Christi, Texas. Summer and fall. 



3. DIAMORPHA Nutt. 



Low, annual or biennial herbs. Stems usually highly colored, branched. Leaves al- 

 ternate or scattered, nearly terete, sessile. Flowers perfect, pink or pinkish, in corymbose 

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