New Species of South American Plants 39 



1532.) Apparently the same collected by Burchell, near Car- 

 acas. 



Tetrapteris alloicarpha. 



Glabrous. Branchlets short, divergent or widely spreading, 

 sleader, lightly angled, very leafy. Petioles 5 or 6 mm. long, 

 channeled above, the stipules very small, ovate and obtuse. 

 Blades 6 to 10 cm. long, 2.5 to 5 cm. broad, ovate with acute 

 base and short-acuminate and acutish summit, thin, the slender 

 venation slightly prominent on both surfaces, the secondaries 

 about 6 on a side, ascending and lightly falcate, obscurely con- 

 necting, the faint venation loosely reticulate. Panicles ter- 

 minal, sub-sessile, much branched and the branches subtended 

 by large, very thin brown bracts, having a stout greenish midrib 

 and cordate, amplexicaul or sub-connate bases. Pedicels 

 slender, 6 or 7 mm. long, strongly striate or sulcate, 2-bracteo- 

 late at the middle. Calyx 3 mm. long, 8-glandular. Claw of 

 the petal 2 mm. long, reflexed, the limb 4 mm. long, 3 mm. 

 broad, ovate with truncate base and rounded summit, not con- 

 cave. Filament broad, thin, glabrous, as long as the claw, the 

 anther oblong, half as long. Ovaries short, pilose, the styles 

 stout, as long as the stamens. 



"A tree to 30 feet, moderately common in dry forests, 

 mostly in low land near streams below 1000 feet. Collected 

 near Bonda, 150 feet, July 10." (Herbert H. Smith, Colombia, 

 No. 343.) This is the type. 



Another specimen of the same number, in fruit, collected 

 near Bonda, January 4. In this, the formerly delicate brown 

 bracts are green and leaf-like, up to 1.5 cm. long, broadly ovate. 

 The body of the fruit is 7 mm. long, the upper wings strongly 

 ascending, the longer more than 2 cm. long, the shorter nearly 

 as long. 7 mm. wide, oblong or a little wider above, the summit 

 rounded, stoutly many-nerved, the nerves erect and branching 

 above. Lower wings i cm. long, 6 mm. broad, oval or obovate 

 with rounded summit. Middle wing of crest nearly i cm. long 

 and as broad or broader, the summit somewhat hollowed out, 

 the nerves straight. Lateral wings of crest small, broadly oval. 



Tetrapteris tenuistachys. 



Glabrous. Branchlets elongated, slender terete, striate, 

 reddish. Petioles 4 or 5 mm. long, stout, broadly channelled 

 above, not glandular, the blades 7 to 10 cm. long, 2 to 3.5 cm. 

 broad, lanceolate with acute base and long-acuminate and 

 acute summit, entire, thin, drying brownish, the venation very 

 slender, lightly prominent on both sides, the secondaries 5 or 



