472 PROCEEDINGS OF THE AMERICAN ACADEMY. 



column Blender, 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 1). Pringlei, Rob., the essential floral characters being identical ; but 

 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 I dm. high, terete, glabrous, simple or branched, 3-5- 

 leaved : leaves flat, linear, attenuate, the basal 3 dm. long, the cauline 

 gradually shorter ; h-acts of the spathe 2, opposite, subequal, 2 to 3 cm. 

 long, lanceolate, acun mate; 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 a 

 little below the middle on the inner surface: petals broadly obovate, 

 cuneate, 1.4 cm. 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 cm. 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. 8435. 

 Type in herb. Gray. Evidently related to C. flavus, Schultes, f. hut 

 differing in its dark colored flowers, short and broad fruit, etc. 



Mimosa ^canthoi \ur\. Benth., var. desmanthocarpa. Habit, 

 foliage, and thorns of the typical form : pods unarmed, the valves mi- 

 nutely fulvous-tomentose. — Collected by E. W. Nelson between San 

 Cristobal and Teopisca, Chiapas, Mexico, altitude 2,060 to 2,620 m., 

 1 December, 1895, no. 8428. Type in herb. I". S. Nat. .Museum; frag- 

 menl in herb. < rray. 



Mimosa eurycarpoides. Branches glabrous, Boft-woody, with 



rather large pith, terete or Bubangular, armed by a few small scattered 



spines: leaves large, (including the petiole) 1 .2 to 2 dm. long ; pinnae 7 



12 pairs, 8.5 to 5 Cm. long, puberulent upon the rachis; leaflets 20 



