710 FABACEAE 
shaped, m. long, short-beaked. [Astragalus distortus T. & 2 oa 
and hillsides, various provinces, Miss. to Tex., Ia., and W. Va.—Spr.-s 
35. TIUM Medic. Perennial erect, virgate herbs. Leaflets numerous: 
blades mostly obtuse. Calyx campanulate with short lobes. Corolla white or 
urple: wings as long as the standard or 
nearly so. Pod narrow, short- hip ee with 
a deep narrow groove alon ventral 
suture which is produced ies pen a par- 
tial false crag ridged along the dorsal 
suture.—About 60 species, meee natives 
of North due and Asia. 
l. T. Michauxii Rt Rydb. Plant 
glabrous in age: flets 15-25; blades 
linear or nearly so 250 m. long: ealyx 
4-5 mm. long; lobes deltoid or triangular- 
eolate, 1-1.5 mm. lon whit 
standard 13-16 mm. long: pod 2-4 em. long, 
a curved, ae i [| Astragalus glaber Michx. Psoralea multijuga A 
apilosum Rydb.]—Sandhills and dry pinelands, Coastal Plain, Fla. 
— Spr. 
36. PHACA L. Perennial or annual diffuse herbs with several or man y 
stems from the top of the root. Leaflets numerous: blades broad, often notched. 
Calyx campanulate or cylindric-campanulate, with rather narrow lobes. o- 
rolla blue, purple, or yellow. Pod sessile, ne curved, with a deep wide 
shallow groove along the ventral suture an ridge along the dorsal, without 
a false partition.—About 20 species, North fee .—Spr. 
Pod pubescent: calyx-lobes longer than the tube. 1. P.int 
Pod glabrous: calyx-lobes shorter than the tube. 2., P. AE 
P. intonsa (Sheldon) pr Plant villous: leaflets 9-15; blades elliptic, 
ae or suborbieular, 3-10 mm. long; 
calyx 9-10 mm. long; lobes lanceolate-subu- 
ate, 4.5-5.5 m g: corolla dull-yellow 
stan 9-11 long d abou e 
long, villous. [Astragalus villosus Mich 
] 
1 " 
Tium  intonsum | Rydb.]—Pinelands, m» 
banks, and r PER m Coastal Plain, Fla. 
Ala. and S. C. 
2. P. oe bus n Plant gla- 
brous in age or nearly so: leaflets 15-25; 
blades obeordate to oblong- SIC 3-8 
mm. long: calyx 5—6 mm. long; lobes nar- 
rowly lanceolate, 2.5-3 mm. long: corolla 
purple or ve ; standard 8-10 mm. long: 
pod 
3-3.5 long, veiny. [ Astragalus 
obcordatus Ell, Tium obcordatum Rydb.—Pinelands, Coastal Plain, Fla. and 
Ga. 
37. ECASTOPHYLLUM L. Shrubs. Leaflets solitary: blades broad. 
Racemes short. Calyx not 2-lipped, the 5 broad lobes short. Corolla white or 
