RYDBERG: NOTES ON FABACEAE—II 269 
Leaflets few, the terminal one wanting or continu- 
us with the rachis; calyx-lobes lanceolate, 1.5-2 
mm. long. 38. H. Coltoni. 
Leaflets many, the terminal one present; calyx lobes 
triangular, I mm. long or less 
Leaflets slightly strigose beset or glabrous 
throughout 39. H. stenophyllus. 
Leaflets ieee -cinereous on both sides. 
Stipe of the pod fully half as long as the 
body, ocrolla ochroleucous or white. 40. H. MacGregorit. 
oh about one third as long as the body; 
rolla purple. 41. H. canovirens. 
Leaflets linear obtealE to oval, glabrous above, 
strigose beneath 
Pod strigose Mcougtions, 
Leaflets linear; raceme elonga 
Body of the pod 2-2.5 cm. ee abrupely contracted 
. A. Antisells. 
4+. 
tN 
at the base, straight. 43. H. filtpes. 
Body of the pod 2.5-3¢c oe gradually tapering 
t each end, slightly arcu 44. FH. inversus. 
Leaflets elliptic; raceme short ae 45. A. gaviotus. 
38.’ Homalobus Coltoni (M. E. Jones) Rydb. comb. nov. 
ea Coltonit M. E. Jones, Zoe 2: 237. 1891. 
Homalobus episcopus Rydb. Bull. Torrey Club 40: 53, in part. 
1913. Not A. episcopus S. Wats., 1875. 
Astragalus Coltoni was based on specimens from Castle 
Gate, Utah. It has the habit of H. junceus and H. campestris, 
but the pod has a slender stipe, the corolla is purplish, the 
wings are nearly as long as the banner and the keel ts rounded 
at the apex. It is therefore more closely related to H. steno- 
phyllus. 1 had mistaken it for H. episcopus (see my notes 
under that species on pages I 
Utau: Castle Gate, Jones, in mete and 1894; southern Utah, 
Bishop, in 1872. 
New Mexico: Carrigo Mountains, Matthews, in 1892. 
39. HoMALOBUS STENOPHYLLUs (T. & G. )Rydb. This is the 
best known species of the group and was the first one published, 
the original name being Astragalus leptophyllus Nutt. As that 
- mame was preoccupied, A. stenophyllus was afterwards substi- 
tuted. Torrey & Gray suggested that the species might belong 
in the genus Homalobus. The type was collected in flower, 
and the fruit remained unknown for some time. The type is 
