46 PITTONIA. 
tuft of leaves and scapes large and dense, often 6 inches broad, 
notably succulent; leaves ovate to elliptic-oblong, obtuse or 
retuse, with broad flat petiole about as long as the blade, upper 
face of the latter (in some degree the lower face also) canescent 
with a short dense strigulose pubescence, this especially dense 
from near the midvein to the margin, thus appearing very 
densely short-ciliate: peduncles hirtellous, short, the flowers | 
though large rather far from equalling the leaves: calyx 
segments oblong-lanceolate, equally as pubescent as the leaves 
but the hairs hirsute rather than strigose: corolla nearly or 
quite an inch long, the large ovate segments rather longer than 
the tube, the whole corolla sparsely hairy within, the base of 
tube more densely so: anthers round-oval, not versatile. 
This, the largest species known, is based primarily on a plant £ 
of my own gathering, on alkaline flats along the Shasta Rivet | 
near Yreka, Calif.,3 May,1876. Other specimens were obtained 
by my former pupil, M. S. Baker, somewhere either in Siskiyou 
Co., or Modoc; and there is a specimen in the U. S. Herbarium | 
purporting to have been obtained in the “Sierra Nevada, Calif,” 
by J. G. Lemmon in 1875. There is much uncertainty as to 
the geographic derivation of Mr. Lemmon’s plants in general; 
but this might have come from far-northward in California, 
and on east slope of the Sierra. His plant differs somewhat — 
from my type, not only in being still larger; it has almost 
orbicular large corolla-lobes, and they are wholly glabrous — 
within, whereas those in mine are ovate, and loosely short-hairy- 
It is more than possible that such a plant as this of Mr. 
Lemmon’s collecting may have formed a part of Dr. Kellogg® 
obscure Hesperochiron latifolius; for the station “alluvial banks 
of the Yuba River, subject to annual overflows,” would corre — 
spond well enough to the habitat of any of those larger specie | 
all of which inhabit open subalkaline plains which are boti 
moist, and, in summer intensely hot. : 
That Dr. Kellogg had his species partly from the Yuba | 
* Kellogg, Proc. Calif, Acad. v, 44. 
