160 PITTONIA. 
10, as long as the petals; filaments white, narrowly clavate. 
abruptly acuminate under the round red anthers. 
An elegant species, with the vegetative characters, nearly, 
of S. reflexa, but flowers more like those of S. Mertensiana: 
found on damp rocky hill-sides, Hoopa Valley, Humboldt 
County, California, in April, 1887, by my zealous corre- . 
spondent, Mr. Carl C. Marshall, to whom I gladly dedicate it. 
POTENTILLA DAUCIFOLIA. Perennial; stems stout and rigid, 
more than a foot high, and, with the petioles, loosely pilose 
and rather densely glandular-pubescent: stipules divided into 
6 or 8 narrowly linear segments almost an inch long: leaves 
_ pinnate, the leaflets, nearly an inch long, in 8—12 pairs, each 
2—3-cleft or -parted into linear divergent segments: calyx 
spreading, parted to near the base, the segments ovate- 
acuminate, 23 lines long, bracteoles lanceolate and nearly as 
long: petals spatulate-oblong, obtuse, little surpassing the 
calyx, sream-color: stamens 10; filaments short, petaloid- 
dilated: pistils 8—12; akenes a line long, obliquely pyri- 
form, smooth and dark-colored, ` 
Klamath and Shasta valleys in the extreme north of Cali- 
fornia; related to P. congesta, which inhabits the same region. 
RHAMNUS RUBRA, Greene.—Since the publication of this 
transmontane species (see page 68, ante) I have discovered 
that both its fruits and seeds are of a different form from 
those of the allied, and common, species of the Californian 
coast and middle regions. The berries of R. Californica are 
depressed-globose, and nearly twice as large as those of R. 
rubra which are somewhat pyriform. The seeds of the latter 
are, correspondingly to the form of the berry, distinctly nar- 
rowed at base, those of R. Californica not in the least so. 
CRYPTANTHE Rarrant. Pilose-hispid and slightly canescent, 
about a foot high, slender but rigid ; leaves linear: spikes in 
threes on an elongated naked common peduncle, rather dense- 
ly flowered, and in age strict : calyx appressed to the rachis, 
