SEDACEAE 497 
1. Sedum Nuttalliànum 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 pulchéllum 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 deep or 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 pusíllum 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 em. 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 Névii A. Gray. Perennial, pale green, forming wide mats. Stems de- 
cumbent, 2-14 em. 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 em. 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 em. 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 telephioides 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 Roanénse 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 oblong-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 
owers or the flower-clusters remote: sepals 5, oblong, acute: petals 5, pinkish yellow, 
ete mm. long, often slightly broadened upward, thickened and apiculate at the apex : 
icles inflated, subulate-tipped. 
In chapparal, Corpus Christi, Texas. Summer and fall. 
3. DIAMÓRPHA 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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