} 
4 
: 
E 
; 
; Sonia Necker, Elem. 3: 36 
: “aa 
1899] NORTH AMERICAN SPECIES OF TEPHROSIA 195 
I. Rugela Shuttleworth is an interesting and hitherto unde- 
sribed species possessing the stem-structure of § Brissonia 
but the habit and foliage of 7. chrysophylla, which is of § REIN- 
PRIA. 
l’ tenella Gray seems to have been founded upon a juvenile 
state of T. purpurea, to which (under the name of T. leptostachya 
DC.) it was reduced by Bentham in Mart. Fl. Bras. 151: 48. T. 
purpurea, however, is highly variable, at least in foliage, and 
certainly merits further study with more copious material than is 
now available. 
The writer is grateful to Drs. Britton and Small for the loan 
of the larger part of the North American Tephrosias from the 
terbarium of the New York Botanical Garden. These have 
keen of material assistance in the present revision. 
As the genus is here interpreted in its generally accepted 
“nificance, it is useless to take space for a generic description. 
Ka ning the species here described, the tropical 7. cenerea 
‘fas been found in the southern states, but only on ballast 
9 (Alabama, Dr. C. Mohr). It is of the § RernertA, and 
= es numerous narrowly oblanceolate-linear leaflets, which 
aty-pubescent upon both surfaces. 
ak Brissonia DC, Stem monopodial : racemes terminal or 
large ¥ Rever opposite the leaves: flowers (in our species) 
Petals 1 to 1.7 long.—Prodr. 2: 249, in part ; 
~ im Engl. & Prantl, Pflanzent. 3:. Ab. 3. 269. . Bris 
*Pp 
ods glabrous at maturity : racemes loose: southwestern. 
om Gray. Undershrub, cinereous with fine appressed 
lite, a. Several, 4 to 6% high, suberect : leaves petio- 
Hien lolate; leaflets narrowly oblong, 1.6 to 3.2% in 
long, about °s both terminal and axillary: pods 5 to 5.7™ 
Seeded. pj. Wright. 2:36; Walp. Ann. 4: 489. 
22; 28 Rita Kuntze, Rey, Gen. 1:175; Vail, Bull. Torr. Club 
type locality is erroneously stated to be New 
Sonoita valley, close to the southern boundary of 
