New Species of South American Plants 121 



Collected by M. Bang at Mapiri, Bolivia, July to August, 

 1892 (No. 1485). 



Adenocalymna purpurascens. 



Glabrous, the branchlets stout, terete, leafy. Petioles 3 

 cm. or more long, very stout, sub-terets. Leaves 3-foliolatt, 

 one of the lower leaflets a large, strong, simple tendril. Petioles 

 ■about 2 cm. long, stout, channelled on the upper side, finely 

 transversely wrinkled, the blades 7 to 12 cm. long, 6 to 8 cm. 

 broad, ovate with rounded or slightly unequal base and rounded 

 or slightly produced summit, entire, very thick, drying a deep 

 purple-brown, slightly shining above, the venation sharply 

 prominent beneath, partially impressed above, the principal 

 ■secondaries about 6 on each side, strongly falcate and connect- 

 ing at some distance from the margin, connected by the terti- 

 aries, the remaining venation very finely reticulate and promi- 

 nent on the upper surface. Raceme simple or branching, 

 stoutly peduncled, slender, loosely flowered, the flowers opposite, 

 shortly pedicelled in the young budding state. Bracts a third 

 as long as the buds, sessile, broadly ovate, mucronate, thick. 

 Flowers and fruit not seen. 



Lower Orinoco, Venezuela. Rusby and Squires, the speci- 

 men unique, without number or locality. 



Adenocalymna latifolia. 



Scurfy-puberulent throughout, on the upper leaf-surfaces 

 only along the principal veins. Petioles 5 to 7 cm. long, terete, 

 striate or lightly flattened on the upper side. Leaflets 3, the 

 petiolules articulated into sockets of the petiole, the lateral 

 2.5 cm., the terminal about 5 cm. long, terete and striate. 

 Lateral leaflets about 10 to 12 cm. long, 7 to 10 cm. broad, ovate 

 with subcordate base, the terminal somewhat larger, especially 

 longer, and with truncate or rounded base; thin, pale-green, 

 ■all the venation prominent on both sides, especially beneath, 

 the secondaries 7 to 10 on each side, the lowest pair rising from 

 the summit of the petiole, all slightly ascending and little 

 curved, the venation finely reticulate. Peduncle about 2 cm. 

 long, very stout, the panicle at first dense, later elongating more 

 or less, the pedicels very short and stout, elongating somewhat 

 in fruit, the bracts conspicuous, at length 1.5 cm. long and 6 

 mm. broad, ovate, obtuse or acute, thick, yellowish, scurfy. 

 Calyx 12 mm. long, 6 or 7 mm. broad, cylindraceous-campanu- 

 late, the lobes 3 mm. long, broadly ovate, acute. Corolla 

 yellow, scurfy, less so within, the tube proper little exceeding 

 the calyx, the broadly campanulate throat nearly 2 cm. long, 

 the limb nearly 4 cm. wide when fully expanded. AntJiers 

 included or slightly exserted, the cells 4 mm. long, lanceolate, 

 obtuse. Very young pod yellowish-scurfy, slender, lightly 

 curved. 



