288 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



lateral. Petioles 2 to 6 cm. long, slender, terete, 2-ligiilate at the 

 summit on the upper side, the ligules linear, thickish, red. 

 Leaves 5 to 10 cm. long and broad, cordate with broad rounded 

 sinus, deeply 3- to 5-lol)ed, the sinuses aeutish, the segments 

 lance-ovate, acute, obscurely serrate-dentate, thin, puberulent 

 beneath, sparsely so above, the venation slender, crooked, loosely 

 reticulate. Racemes few-flowered, short-peduncled. Pistillate 

 flowers usually 2 or 3, subtended by four bracts, which are about 

 1 cm. long and nearly as wide, ovate, aeutish, strongly 3- to 

 5-nerved, thickish. Sepals 12, pinnatifid, the linear segments 

 lacerate, greatly enlaring in fruit. Style very stout, sigmoid- 

 curved, the stigma discoid, strongly oblique, nearly circular, 

 coriaceous, the margin recurved, nearly 2 mm. broad. Staminate 

 flower consisting of about 20 stamens which are nearly distinct. 

 Capsule 1.5 cm. broad, nearly 1 cm. high, deeply 3-lobed, black 

 and shining, partly concealed by the pinnate sepals. 



Rurrenabaque, Martin Cardenas, November 24, 1921 {no. 

 1793). "A vine, growing in forest shade, the bracts white, the 

 stigmas red." 



Pera elliptica 



Glabrous. Branchlets stout, leafy, roughened with the scars 

 of the fallen leaves. Stipules about 5 mm. long, broadly ovate, 

 obtuse or obtusish. Petioles 3 to 5 cm. long, slender. Blades 7 

 to 15 cm. long, 3 to 9 cm. wide, elliptic, the base slightly cordate 

 and sometimes a little oblique ; entire, coriaceous, the midrib 

 stout, prominent beneath, the rest of the venation slender, lightly 

 prominent on both surfaces, the secondaries 20 to 25 on each 

 side, with some intermediate minor ones, somewhat decurrent 

 on the midrib, widely spreading, the outer portions ascending, 

 connected by crooked tertiaries, the venation strong!}" and rather 

 loosely anastomosing. Flowers not seen. Fruits sessile, 1 cm. 

 to 1.5 cm. broad, and nut quite so long, lightly 3-lobed, the lobes 

 lightly grooved, tipped by the subsessile discoid stigma, the sur- 

 face dark-brown, more or less papillose. 



San Buena Ventura, 1,000 feet, M. Cardenas {no. 1781). 

 Local name "Caout-chouc." 



Mabea elegans 



Ferruginous-tomentellate. Branchlets slender, terete. Stip- 

 ules 5 to 8 mm. long, linear, mostly obtuse. Petioles 5 mm. long, 

 stout. Blades 5 to 8 cm. long, 2 to 3 cm. wide, lance-oblong, w!th 



