BULLETIN 
TORREY BOTANICAL CLUB. 
Notes on Potentilla.—V. 
By P. A. RYDBERG. 
(PLATES 276, 277.) 
The Sudviscosae is a small group of low plants with many more 
or less spreading branches from the caudex, with a silky or hir- 
Sute pubescence, often intermixed with almost sessile glands, but 
not at all tomentose; with digitate leaves of 5—7 leaflets, and in fruit, 
with incurved sepals which enclose the large, but comparatively 
few achenes. The petals are more or less contracted at the base, 
?. €., Semi-unguiculate, although indistinctly so in P. Wheeler. 
Porentitta WaEELERI Wats. Proc. Am. Acad. 11: 148. 1876. 
The pubescence is quite densely silky, and the typical form is 
_ apparently without glands. The leaflets are obovate and crenate 
at the rounded summit, 1-1.5 cm. long. The petals are obcor- 
date, slightly contracted at the base, and a little exceed the 
Calyx. It has been collected in southern California, Arizona and 
_ forthern Mexico. A form connecting it with the next may be 
regarded as a variety or perhaps as a distinct species. It may be 
known for the present as : 
POTENTILLA WHEELERI VISCIDULA N. V. 
Subcaespitose, rather hirsute with spreading hairs, somewhat 
: glandular-granuliferous on the calyx, pedicel, etc.; leaflets shorter 
grand broader, generally less than 1 cm. long. — ene 
The following specimens have been seen: 
Arizona: C. G, Pringle, 1881; J. G. Lemmon, no. 158. 1881. 
