10 ERYTHEA. 
cription of the immature fruit. The leaves in my plant make 
little show alongside of the tall and very stout peduncles. 
The petioles of the earlier are broadly dilated and enclose 
later ones which are simply ternate, on very long petioles 
(often 8 inches long) dilated only at the base. 
Peucepanum Hasszr C.& R. Collected on the summit 
of the Vaca Mountains, June 20, 1892, three hundred and 
fifty miles north of the original locality in Los Angeles 
county. My specimens agree well with those from the first 
station, the only difference being that the leaflets are smaller 
and thicker. The plant is sub-acaulescent, 16 inches high; 
the very broad-winged fruit 7 lines wide and 8 lines long; 
oil-tubes 4 on the face and 4 on the back, with occasionally 
an additional one in one of the lateral intervals. 
THE MOUNTAIN REGION OF CLEAR LAKE. 
By Wiuuis L. Jzpson. 
Tt has been known for at least a decade that the mountain 
region about Clear Lake was an area of considerable botanical 
interest. A few collectors have been there within that period, 
chiefly during the dry summer season, and have returned 
with new and valued plants. Henry Bolander and Dr. 
Torrey were there long ago but apparently brought away 
few of the plants that give a local color to the collections 
since made. Such rarities in herbaria as Astragalus Cleve- 
landi, Ceanothus divergens, Chorizanthe Clevelandi, Cino- 
thera hirtella, Lessingia adenophora and Solanoa purpuras- 
eens come from these mountains and the valleys lying 
between them; and Potentilla Bolanderi, Linum Clevelandi, 
L. drymarioides and Navarretia mitracarpa are not known 
from beyond the borders of Lake County. 
Clear Lake is in the heart of the Coast Range, seventy 
miles north of the Bay of San Francisco. It is some twenty- 
two miles in extreme length and is girt about by ridges which 
