MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 157 
Dr. Torrey in the original description gave, among other characters, the following: 
“petalis oblongo-cuniformibus ; staminibus 20,” but these characters are evidently wrong. 
The type specimens are in the Torrey herbarium, and there is only a fragment of a single 
flower. Dr. Gray found only 5 stamens, wherefore he referred the species questionably 
to. H. Gordonii. Potentilla depauperata Engelm. was then undescribed, but nobody has 
hitherto identified it with the present species; from the type specimens, although frag- 
mentary, it is easy to see that the two belong to the same species. 
Arizona: Dr. Woodhouse (Sitgreaves’ Exp.), 1851 (type); A. L. Anderson, 1864 
(Type of P. depauperata); J. G. Lemmon and wife, 1884; H. H. Rusby, No. 596, 1883; 
J. W. Toumey, No. 492, 1892; Dr. E. Palmer, 1869: Oscar Land; Wolf & Rothrock 
(Wheeler Exp.), No. 369, 1873; C. C. Parry, 1889. 
2. Comarella sabulosa (Jones). 
Potentilla sabulosa Jones, Proc. Cal. Acad. Sei. (II.) 5: 680. 1895. 
Ivesia sabulosa Jones, |. ¢. as synonym. 
ILLUsTRATIONS: PLATE 97, f. 1; dissection of flower, f. 2; pistil, f. 3; stamen, f. 4; 
fruiting hypanthium and calyx, f. 5. 
Stems several from the caudex, ascending, less than 2 dm. high, more or less tinged 
with brown, slender, glabrous. Stipules ovate-lanceolate. Leaves less than 1 dm. long, 
glabrate, pinnate ; leaflets about 15 rather approximate pairs, 3-5 mm. long, 2-3-cleft 
into oval segments. Cyme open and rather flat-topped, with divergent branches and 
slender pedicels. Hypanthium glabrous, saucer-shaped, 3-4 mm. in diameter, in age 5- 
angled; bractlets linear-subulate, thickish, much smaller than the ovate-lanceolate 
acuminate sepals. 
Very nearly related to the preceding and scarcely distinct. It is a much smaller 
plant, however, and less tinged with purple. Only the type specimens are known. 
Utah: M. E. Jones, No. 6032, 1894 (Sevier River). 
5. ARGENTINA Lam. 
Argentina Lam. FI. Frane. 3: 118. 1778. 
Potentilla L. Sp. Pl. 495. In part. 1753. 
Dactylophyllum Spen. Fl. Frib. 8: 1084. In part. 
Hypanthium almost flat; bractlets, sepals and petals normally 5, often, however, 
1 Dr. Torrey has written on the type sheet the following: ‘‘ Dr. Gray is correct in stating that there are but 5 stamens 
in this species. He has incorrectly quoted the specific name, calling it ‘ millefoliata.’” 
