22 RypDBERG: NOTES ON FABACEAE—III 
5. KENTROPHYTA ACULEATA (A. Nels.) Rydb. This was 
first collected by Nuttall and first described as K. montana @ in 
Torrey & Gray’s Flora. It was again described as A. tegetarius 
implexus Canby. M. E. Jones* makes thestatement that it ‘‘ does 
not seem to be worthy of varietal rank, as it is only a condensed 
form.’’ Evidently Jones had misinterpreted A. tegetarius S. 
Wats., for H. aculeatus has much larger flowers, 5-7 mm. long, on 
very short peduncles, while in A. fegerarius they are only 3-5 
mm. long and in racemes equalling or exceeding the leaves. 
Jones also in two places} states, first that A. aculeatus is ‘‘a 
form of A. Kentrophyta,”’ and later that it is ‘A. tegetarius.”’ 
Neither is true, though it is related to both. 
OREGON: Wallovoa Mountains, Cusick 2350, 1364. 
Montana: Cedar Mountain, Rydberg & Bessey 4487. 
WyominG: Dome Lake, A. Nelson 2445; Union Pass, 1077; 
Nez Perces Creek, 6205; Sheep Mountain, Tweedy 256; between 
Sheridan and Buffalo, Tweedy 3189; Big Horn Mountains, Tweedy, 
in 1898; Yellowstone Park, R. S. Williams, in 1888; Rydberg & 
Bessey 4488; Kelsey, in 1890; Headwaters of Cliff Creek and 
Upper Buffalo Fork, C. C. Curtis; Doyle Creek, Goodding 372; 
Big Horn Mountains, Jack 8, 16; West Yellowstone, Payson 1913. 
CoLorapo: Georgetown, Jones 679*; Chambers Lake, Baker, 
in 1896. 
Utan: Big Cottonwood Cafion, Garrett 1543; Fish Lake, 
Jones 5810; Alta, Jones 1127{; Leonard 181. 
IpAHo: Clyde, Macbride & Payson 3127; Wacker: Nelson & 
Macbride 1474. 
6. KENTROPHYTA WOLFII Rydb. First described as Homa- 
lobus Wolfit Rydb. It is known only from the type collection, 
Wolf 243, from South Park, Colorado. It is related to K. aculea- 
ta, but differs in the small flowers, short leaflets and the grayish 
loose pubescence. 
7. KENTROPHYTA MINIMA Rydb. Closely related to the 
preceding but differing in the short pubescence, the long stipules. 
and short pod. 
* Proc. Calif. Acad. II. 5: 650. 1895. 
+ Contr. West. Bot. 10: = 1902; 12: 11. 
Th i fi 1A. Kentrophyta, later corrected by pee 
to A. tegetarius. 
