64 Muhlenbergia, Volume 9 
7mm. long; 2mm. deep at the middle, little curved ventrally, 
much so dorsally, apex with a short blunt point: pods olive- 
brown, flat, not constricted, 2.5cm. long, 2.5mm. wide, glab- 
rous, about 5-seeded: seeds oblong, barely 3mm. long, 1.5 mm. 
wide, smooth and shining, irregularly mottled with black and 
brown. 
The type, in the herbarium of A. A. Heller, is Heller 6057, 
collected August 18, 1902, at Santa Rosa, Sonoma county, Cal- 
ifornia, where it was plentiful along roadsides. 
A peculiarity is its tardy flowering, all of the other species, 
so far as observed, blooming much earlier. The only Nuttallian 
species to which this plant could possibly be referred is Hosackia 
floribunda, but to do so would be mere guess work, as no defi- 
nite characters can be obtained from his description. 
Aecmispon pilosus (Nutt.) 
Hlosackia pilosa Nutt.; T. & G. Fl. N. A. 1: 327. 1838. 
FHlosackia americana pilosa Piper, Cont. U. S. Nat. Herb. 
11: 366. 1906. 
“29. FH. pilosa (Nutt. mss.): “densely clothed with soft 
hairs, decumbent and much branched; leaflets elliptical-oblong, 
obtuse or slightly acute, branchlets unifoliate; bract of a single 
leaf; flowers scattered; peduncles very short; legume flattish, 
few-seeded. 
“With the preceding [H. florzbunda}, which it resembles, 
but is much smaller. Leaflets 3-4 lines long. Peduncles shorter 
than the leaves. Legume about 34 of an inch long.” Mudtall.” 
I have referred to this my 7059, collected at Truckee, Sierra 
county, California, July 30, 1903. The corollas are small, 5mm. 
long, the vexillum apparently pink, the wings paler. Calyx 
tube 1.5mm. long, lobes barely 3mm. long, linear-subulate, cil- 
late: blade of banner broader than long, 4 min. long, 5 mm. 
wide, claw 1mm. long, 0.5 mm. wide, scarcely narrowed below; 
blade of wings 3.5mm. long, nearly 2mm. wide, bluntly auri- 
cled at base, claw slender, curved, 1.5mm. long: pods 22 mm. 
long, 6-seeded: seeds 2.5min. long, 1.5mm. wide, flattened, olive 
green. Nuttall’s type came from “plains of the Rocky Moun- 
tain range, toward the Oregon. June-July.” 
