A REARRANGEMENT OF AMERICAN PORTULACER. 35 
9. T. conFEeRTIFLORUM, Greene, Bull, Torr. Club, viii. 121. 
Root fleshy, branching: stems several, branching, leafy: 
peduncles, bearing a crowded cyme at summit: flowers white: 
stamens 5.—New Mexico. 
7. CLAYTONIA, Linn.; Gronov. Fl. Virg. 25. Low suc- 
enlent perennials, with fleshy roots or deep-seated corms, and 
showy but light-colored flowers in loose racemes. Sepals 2, 
persistent. Petals 5, equal. Stamens 6. Seeds compressed, 
shining. 
* Stems one to several from a deep-seated corm; leaves all 
radical except a pair of bracts subtending the raceme. 
1. C. Viratnica, Linn. Sp. 204. Leaves linear-lanceolate, 
3 to 6 inches long.—Eastern U. 8. 
2. ©. Caronrtana, Michx. Fl. i 160. Leaves spatulate- 
oblong or oval-lanceolate, 1 or 2 inches long.—Eastern U. 8. 
8 Q. zanceoLaTa, Pursh, Fl. 175. Leaves narrowly 
lanceolate (usually wanting on flowering plants) 1 or 2 inches 
long.—Rocky Mountains and westward. 
4. QC. umpetiata, Wats. Bot. King, 43. t. 6. Leaves 
orbicular to oblong or ovate, on long slender petioles: raceme 
umbel-like.—Oregon to Nevada. 
* * Stems and leaves from the crown of a fleshy root. 
5. C. mMEGARRHIZA, Parry; Wats. Bibliogr. Index, 118. 
Leaves cuneiform, obtuse, attenuate to a margined petiole 
with scarious dilated base, 1 to 6 inches long: involucral 
leaves spatulate-lanceolate or narrower, tapering at base: 
stems not exceeding the leaves.—Eastern Oregon to Colorado. 
6. ©. arctica, F. M. Adams, Mem. Soc. Mose. v. 94. 
Leaves broader, obtuse, the involucral ovate or broadly 
oblong, sessile by a broad base: stems surpassing the leaves: 
flowers in a short racemiform cyme.—Alaskan shores and 
islands and adjacent Asia, 
