MULFOKD KXl'LOKATIOK OF THE AMAZON VAIJ.F.Y 



319 



sessile, but narrowed into a short ])eti()le-like liase, Avliich is chan- 

 neled by the incurved wings, obtusish or barely acute, entire, 

 pale or glaucous-green above, very pale underneath, the midrib 

 narrowly channeled above, very prominent and subcarinate be- 

 neath, the innumerable secondaries very slender, widely spread- 

 ing, becoming falcate and anastomosing near the margin. Ra- 

 cemes sessile, very short and few-fruited, the calyx persisting 

 after the fall of the fruit, on slender pedicels less than half the 

 length of the fruit, deeply r)-lobed, the lobes oblong, obtuse, about 

 1.5 nun. long. Fruit globose or slightly depressed, G or 7 mm. 

 broad, red, lightly and sparsely tuberculate. 



Specimens jrarchased from a boy at Rurrenabaque, 1.000 

 feet, October 8, 1921 {no. 1581). 



SAr()TA(M5AK 



Lucuma polycarpa 



(Fruiting specimen.) (Jlabrous. Branchlets stout, very 

 leafy. Petioles to 2.5 cm. long, stout, channeled on the upper 

 surface. Blades to 12 cm. long, 4 cm. wide, oblong, with base 

 gradually contracted into the petiole, and blunt summit, entire, 

 with revolute margin, thick and coriaceous, the upper surface 

 lucid, the venation prominent beneath, the secondaries 18 or 20 

 on each side, with smaller intermediate ones, the venation 

 strongly and finely anastomosing . Fruits densely spiked along 

 the thick branchlets, subsessile, the branch strongly nodose 

 where the fruits have fallen. Persistent calyx appressed, the 

 sepals subrotund, 4 or 5 mm. broad. Fruit depressed-globose, 

 3.5 em. broad, glabrous, the summit umbilicate. Seeds about 4, 

 oval, lightly compressed, 1.5 cm. long, black and shining. 



Collection data lost, hut probably from the vicinity of Rur- 

 renabaque. Fruit edible. 



Sideroxylon bolivianum 



(Fruiting specimen.) Glabrous. Branchlets stout, leafy. 

 Petioles 1.5 to 2 cm. long, slightly decurrent upon the stem, nar- 

 roAvly channeled above by the incurved margins, which are con- 

 tinuous with those of the blade. Blades to 1.5 dm. long by nearly 

 6 cm. wide, oblanceolate or obovate with acuminate base and 

 rounded, mostly slightly apiculate summit, entire, thick, pale 

 or light-green on both surfaces, the midrib stout and rounded on 

 the lower surface, mostly channeled above, the principal secon- 



