192 Vermischte neue Diagnosen. 
flowers and leaves larger, the under surface of the leaves only slightly 
purplish, the sepals thinner, &c. 
Mexico: Type U. S. National Herbarium no. 461981, collected by 
Dr. ©. G. Pringle in Lake Xochimiclo, Valley of Mexico, 1896 (no. 6464); 
also in the same lake by J. N. Rose and Walter Hough, May 26, 1899 
(no. 4330). 
Doctor Conard refers tbis species to Nymphaea odorata gigantea, the 
„types“ of which, he states, came from Saint Georges, Delaware. Even 
if Doctor Conard's reference were correct the name would be untenable, 
as there is already a Nymphaea gigantea. 
193. Clematis rhodocarpa Rose, 1. c., p. 95. 
Apparently high-climbing vines, somewhat pubescent; upper leaves 
ternate; leaflets ovate to broadly ovate, 5 to 8 em long, 3 to 6 cm broad, 
more or less deeply cordate, coarsely toothed, acuminate, slightly pubes- 
cent on both surfaces; inflorescence usually much shorter than the leaves: 
sepals oblong, obtuse; fruit rose-red, only slightly hairy, when mature 
terminated by long curved hairy tails. 
Mexico: Apparently common about Oaxaca, where it has been 
been collected by Pringle, Nelson, and Charles L. Smith. 
Type U. S. Nat. Herbarium no. 253028 (Pringle's no. 4770). 
194. Clematis rufa Rose, l. c., p. 95. 
A vine 3 to 9 meters long, the stem as well as the leaves densely 
covered with a reddish yellow pubescence; only the upper leaves seen, 
these ternate; leaflets lanceolate to ovate, 4 to 7 em long, acute to 
shortly acuminate, 3 to 5-nerved, entire; inflorescence compact about the 
length of the subtending leaf; flowers numerous; pedicels 10 to 15 mm 
long; sepals oblong, obtuse; fruit not seen. 
Mexico: Type U. S. National Herbarium no. 234391, collected by 
E. W. Nelson along road between Tenejapa and Yatalon, Chiapas. 
altitude 400 to 1,500 meters, October 13, 1895 (no, 3243). 
195. Pithecolobium revolutum Rose, 1. c., p. 96. 
A low depressed compact bush; first year branches very pubescent, 
older branehes gray and glabrous; stipular spines short, stout, straight 
or becoming recurved; pinnae one pair; common petiole short, bearing 
a gland at the top; leaflets 3 to 5 pairs, closely set, linear, obtuse, the 
margins strongly involute, covered with short stiff hairs as are also the 
rachis and petioles; flowers not seen; pods curved, flattened, 5 to 7 cm 
long, 10 to 12 mm broad, pubescent; seeds black. 
Mexico: Type U. S. National Herbarium no. 453274, collected by 
Rose and Painter south of Higuerillas, Querétaro, August 23, 1905 
(no. 9784). Here a common desert shrub. 
