26 _ Contributions to Western Botany. [ZOE 
apex, and pendulous; keel exceeding the calyx teeth by two ~ 
lines, wings one and one-half lines longer than keel, and banner 
two lines longer than wings, banner erect, wings and keel 
arched, broad tip of keel incurved at a right angle. Otherwise, 
as in A. collinus. Described from the type collected at Yreka, 
Cal., by E. L. Greene. This differs from A. collinus (Phaca 
collina Hooker) as described in Flora of North America, T. & 
G., 347, in the leaflets being closely set and not ‘‘ remote,” 
shorter, peduncle longer, calyx not ‘‘ tubular” nor ‘‘ elongated” 
but campanulate as a rule, and in the banner being much longer 
than the elongated wings. It differs from the description given 
in King’s Rep., p. 444, in |the pod being linear and not linear- 
oblong. Watson there gives the calyx as oblong-campanulate 
or cylindric, and the pod as aninch long. Canby, in Botanical 
Gazette, xii, 150, gives it as his opinion that this is only a 
variety of A. collinus. No one seems to have remarked upon 
the short keel and close set leaflets. If these are common to the 
true 4. collinus, then, no doubt, this is a form of A. collinus. 
Astragalus Mogollonicus, Greene, Torrey Bulletin viii, 97. 
This is only a form of A. Bigelovii apparently, as it is a com- 
mon thing for A. Bzgeloviz to be very hirsute with yellow hairs, 
and the pod is from oval and short pointed to lanceolate and rather 
long pointed. The immature pod of this plant is straight and cylin- 
dric-lanceolate. Rusby’s specimen is fully as large as A. Bige- 
ovii and like it in all respects so far as can be seen, but it has no 
mature fruit, while Greene’s specimen, the type, is very young 
and without fruit at all. I have a specimen of 4. mollissimus 
from the same region, the San Francisco Mountains, Ariz., that, 
so far as the yellowness is concerned, would pass for 4. Mogol- 
lonicus were it not for the cylindrical and perfectly glabrous pods, 
Astragalus calycosus Torrey var. scaposus (Gray) A. scaposus 
Gray, Proc. Am. Acad. xii, 55. 4. candicans Greene, Bull. 
Cal., Acad. i, 156. Itis strange that Dr. Gray did not recog- 
nize the close relationship of this plant with 4. calycosus. It 
has only the remotest resemblance to 4. M/issouriensis and no 
relationship to it. The true 4. scaposus differs trom A. calycosus 
only in the short and triangular calyx lobes and the less 
