472 PROCEEDINGS OF THE AMERICAN ACADEMY. 
column slender, its slender, divaricate branches bifurcate at the apex; 
capsules small and crowded, obovate, leathery in texture ; seed small, 
corrugated, with peripheral wing. — Collected by C. G. Pringle on lime- 
stone mountains near Iguala, State of Guerrero, Mexico, altitude 1,230 « 
m., 15 September, 1900, no. 9224. This plant exhibits close affinities 
for D. Pringle’, Rob., the essential floral characters being identical ; but ae 
the striking difference displayed in its much larger and densely crowded 
flowers serves to give it an entirely distinct aspect, and seems to justify 
a specific description. Leaves 8 to 9 cm. in diameter. Racemes 12 cm. 
long, with rather stout rachis. Perianth 5 mm. wide ; segments 4 mm. 
long. Capsules 7 to 8 mm. wide.” 
Calochortus Pringlei. Bulb ovoid, 3.5 cm. long, covered by more 
or less thickened somewhat reticulated fibres, and surmounted by a cylin- 
drical mass of long linear fuscous scales, from the midst of which rises 
the stem; this 4 dm. high, terete, glabrous, simple or branched, 3-5- 
leaved: leaves flat, linear, attenuate, the basal 3 dm. long, the cauline 
gradually shorter; bracts of the spathe 2, opposite, subequal, 2 to 3 cm. 
long, lanceolate, acuminate; pedicels glabrous, 2 to 7 cm. long; flowers 
3 cm. in diameter, dark purple or almost black; sepals narrowly obovate, 
bluntly pointed or retuse, glabrous except at a small roundish area ® 
little below the middle on the inner surface: petals broadly obovate, 
cuneate, 1.4 em. long, two-thirds as broad, obtusely pointed, externally 
glabrous, internally covered on all parts except the narrowed base by 
rather coarse violet or yellow hairs: filaments 5 lines long, glabrous $ 
anthers 3.5 lines long, apiculate: ovary glabrous; capsule acute at each 
end, 2.5 em. long, 8 mm. in diameter. — Collected by C. G. Pringle 
in thin soil of the top of knobs of the Sierra de Tepoxtlan, State of 
Morelos, Mexico, altitude 2,300 m., 15 September, 1900, no. 849% 
Type in herb. Gray. Evidently related to ©. flavus, Schultes, f, but 
differing in its dark colored flowers, short and broad fruit, ete. 2 
Mimosa acANTHOCARPA, Benth., var. desmanthocarpa. Habit, 
foliage, and thorns of the typical form: pods unarmed, the valves ml- 
nutely fulvous-tomentose. — Collected by E. W. Nelson between San 
Cristobal and Teopisca, Chiapas, Mexico, altitude 2,060 to 2,620 Ms 
4 mber, 1895, no. 3428. Type in herb. U. S. Nat. Museum; frag: 
ment in herb. Gray. ; 
Mimosa eurycarpoides. Branches glabrous, soft-woody, 
rather large pith, terete or subangular, armed by a few small scatte 
spines: leaves large, (including the petiole) 1.2 to 2dm. long; pinnae 7 
to 12 pairs, 3.5 to 5 cm. long, puberulent upon the rachis ; leatlets 
with 
