PHASES OF POTENTILLA. 101 
triangular-lanceolate, entire and about as long as the broadly 
campanulate tube: stamens 10, unequal and unequally in- 
serted, the five shorter filaments filiform throughout, the 
. others deltoid-dilated just at the insertion, and filiform above : 
carpels broadly ovate-reniform, light-colored, with manifest 
nerves running obliquely. from thé minute supra-basal scar 
around and upward to the dorsal side of the apex. . 
Shady banks of the upper N apa River, a little above Calis- 
toga, August, 1883. A single specimen, in fruit only, was 
taken in haste, and, at the time presumed to be only a slender 
state of the last species, with more divided foliage. The 
plant is perhaps no rarity in the region indicated, which is 
the upper Napa valley, already remarkable as the home of a 
number of species of plants not elsewhere detected. 
** Flowers cymosely but either compactly or diffusely 
gathered above midway of the stems. 
'8. P. Linpieyi — Horkelia cuneata, Lindl. Bot. Reg. xxiii. 
under t. 1997 (1837); Torr. & Gray, Fl. N. Am. i. 485; H. 
Californica in part of Brew. & Wats. Bot. Cal. 1. c., not of 
Cham. & Schlecht.—Calyx merely cyathiform, not campanu- 
late, its bracts smaller than the lobes and entire; whole plaut 
of a dusky reddish hue and less than half the size of P. Cali- 
fornica : these characteristics, together with the different in- 
florescenee abundantly distinguish this from the species with 
Which it has been confounded by the authors above men- 
tioned. It belongs, moreover, to a more southerly section of 
the Californian coast, although its proper habitat and that of 
P. Californica overlap in San Mateo County not more than 
fifteen miles below San Francisco. It is the common 
_‘Horkelia’ of the Monterey region, where Douglas originally 
found it. There is a P. cuneata, Wallich. 
"4 P. Kzrroaar — Horkelia Kelloggii, Greene, Bull. 
Cal. Acad. ii, 416 (May, 1887): Horkelia Califormea, var. 
