306 PITTONIA. 
rather strongly.retieulate, and the whole surface closely 
impressed-puncticulate. 
This is what has been called R. occidentalis in the western 
middle sections of California; a plant.by no means common 
there, and confined to wet, boggy depressions among the 
coast hills about San Francisco Bay and Monterey. It is 
an almost gigantic species and very early flowering ; ; being 
in mature fruit before the end of May. 
“R. conrinis. Stems as stout and foliage as large as in 
the last, the panicle ample, less elongated: leaves even 
more ample, commonly 6 inches wide toward the deeply 
subhastate-cordate base: pedicels slender, + to 4 inch long, 
jointed well above the base: valves suborbicular, with sub- 
truncate base, green and of thin texture, with a not ntuch 
raised but very distinctly and completely reticulated vena- 
tion, the margin more or less crenate or dentate toward the. 
base. 
Common in the lake region of northern Idaho, inhabit- 
ing wet meadows; fruiting in July and August. Leiberg, 
n. 562, and Heller, 3481, as these are represented in my 
herbarium. 
" R. FENESTRATUS. Stem not known; plant probably not as 
tall as inthe two last; the single radical leaf seen lanceo- 
late, plane, 6 inches long and subcordate, on a petiole of 
greater length; pedicels slender, the articulation not obvi- 
ous: valves large, thin and translucent, commonly, much 
reddened in maturity, of acutish deltoid-ovate outline, but 
longer than broad, conspicuously and variously reticulate, 
and, as seen from within, exhibiting a minute but very dis- 
tinct favose secondary (or primary?) reticulation. 
Near Comax, Vancouver Island, 23 June, 1893, John 
Macoun; n. 1570 of Canad. Geol. Survey. 
