L. Radlkofer. — Sapindaceae. 



broadest at or below the middle and gradually tapering to a blunt apex, conspicuously 

 dentale throughout with blunt, salient, somewhat callous teeth mostly 8 — 15 mm 

 apart and 2 — 3 mm long, cuneate to obtuse at base, glabrous on both surfaces; lateral 

 veins about 8 pairs, ascending at an angle of 45°, the veinlets prominently elevated 

 and conspicuously reticulate on both sides; spikes solitary, axillary, 5 — 10 cm long, 

 closely puberulent; stipe of the fruit 5 mm long; fruit-body ellipsoid, 12 mm long, 

 7 mm in diameter, tri-alate above the middle, the wings decurrent to the base, body 

 and wings red-brown, prominently veined.« 



In Guiana anglica: Gleason n. 803 [typus], 818 (on dry sand hills, east of 

 Rockstone, Jul. 1921). 



»The measurements are taken from the type; in the second collection the leaves 

 are smaller and somewhat shining on the upper surface. P. arenicola is also related 

 to P. rufescens, and differs in its small, glabrous, strongly dentate, and conspicuously 

 reticulate leaves.« 



P. 352 adde: 



Paullinia ingaefolia Rusby in Mem. N. York Bot. Gard. VII. (1927) 291. — »In- 

 florescence and flowers ferruginous or gray-tomentellate, the branches stout, irregularly 

 and heavily angled and sulcate. Leaves extremely variable in size, the longest more 

 than 3 or 4 dm long, sessile or with a long, winged petiole, the leaflets 5, the joints of 

 the rachis broadly winged, the wings herbaceous, successively wider upward and wider 

 toward their upper part, the widest as much as 1,5 cm on each side. Leaflets sessile, 

 blackish glandulär at the base, the largest 1,5 dm long, and 8 cm wide, oblong or oval, 

 rounded or obtuse at both ends, entire or with one or two obscure teeth toward the 

 summit, thickish, the mibrid and 8 to 10 secondaries on each side mostly depressed 

 above and strongly prominent beneath, glabrous above, sparsely and coarsely pilose 

 on the veins beneath, finely and strongly reticulate-veined. Panicles spiciform, cylindric, 

 densely flowered, sessile, 5 to 8 cm long in my specimens, 1 to 1,5 cm thick, subtended 

 by a pair of coriaceous, ciliate, brown, many-ribbed oblanceolate obtuse bracts about 

 2 cm long, these apparently substituting the tendrils, which are not present.<< 



In Bolivia: O. E. White n.l275 (Rurrenabaque, 1,000 feet, Oct. 1921). 



Paullinia pendulifolia Rusby, 1. c. VII. (1927) 291. — »Younger portions and in- 

 florescence finely or sparsely puberulent, the branchlets and branches of the inflores- 

 cence strongly ascending often recurved toward the summit, strongly sulcate, deep- 

 purple. Petioles 1 to 2 cm long, 2 or 3 times as long as the rachis, and, like it, narrowly 

 winged, with the wing puberulent and involute on drying, the leaflets 5, sessile, more 

 or less pendulous, the four lateral subequal, the terminal a little larger, from 2,5 to 

 5 cm long, 1,5 to 3 cm wide, oval with rounded base (the terminal acutish), and obtusish 

 summit, all nearly equilateral, with 3 streng obtuse teeth above the middle, thick, 

 glabrous and sublucid, the midrib and secondaries impressed above, strongly prominent 

 beneath, the latter about 8 on a side, stout, ascending, rather crooked, the intervening 

 venation densely and strongly anastomosing. Panicles racemiform, 1 to 1,5 dm long, 

 including the peduncle, not more than 1 cm broad, densely flowered, the branchlets 

 mostly 2- to 4-flowered, the pedicels very short, slender, the bracts setaceous, much 

 longer than the pedicels, the flowers, as pressed, 5 to 7 mm broad. Fruit about 18 mm 

 long, including the stipe, which is nearly a third of the length, 1 cm broad, pyriform, 

 very shortly and stoutly mucronate, and bearing a short connate style-base, the cells 

 empty in all my specimens.« 



In Bolivia: H. H. Rusby n.l622 (on the pampas near Lake Rogagua, 1,000 feet, 

 Nov. 1921). 



Paullinia quercifolia Rusby, 1. c. VII. (1927) 292. — »Glabrous, the branchlets 

 elongate, slender, heavily sulcate. Leaves normally 5-foliolate, but the lowest pair of 

 leaflets frequently wanting and represented by a pair of blackish glandulär depressions. 



