252 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



Inga ellipsoidea 



(EuixGA.) Densely gray-tomentellate throughout. Branch- 

 lets very stout, finely many-costate or nerved. Leaves (only 

 the upper seen) petioled, the petioles very stout, somewhat 

 dilated at the base, about two-fifths as long as the raehis, ob- 

 scurely angled or costate. Leaflets four pairs, subsessile, the 

 glands of the rachis small, deep, with sharply elevated margins. 

 Upper wings of the rachis complete from node to node, the lower 

 not quite complete at the base, the upper successively broader, 

 linear-oblanceolate, the uppermost 12 mm. wide. Leaflets larger 

 upward, the uppermost 3 dm. long, 1 dm. wide, oval with rounded 

 or subcordate hase and abruptly acuminate and acute summit, 

 rather thin, but rigid, the indumentum slightly rough, much 

 denser underneath. Venation slender, slightly prominent above, 

 sharply so beneath, the secondaries about 20 on each side, with 

 shorter intermediates, widely spreading, little curved except at 

 the ends, where they are sharply up-curved to connect with a 

 tertiary of the next one above, connected elsewhere by numerous 

 rather straight tertiaries. Spikes normally axillary, but some- 

 what crowded at the ends of the branchlets, with the subtending 

 leaves often wanting or replaced by large ovate acute bracts. 

 Peduncles (in the young state, with buds still wholly unopened) 

 1 dm. long, erect or strongly ascending, stout and rigid, many- 

 nerved, bracted above near the flowers as well as beneath the 

 flowers. Spikes in this young state about 6 cm. long, 2 cm. 

 broad, cylindric, truncate, densely flowered. Bracts 12 mm. 

 long, ovate, acuminate, acute or obtusish, shorter than the calyx, 

 which is coriaceous, the tube narrowly campanulate, 1 cm. long, 

 the lobes 3 mm. long, broadly ovate and obtuse. 



Along the Bopi Kiver, 3,000 feet, H. H. Rushy, Sept. 11, 1921 

 {no. 660). 



Inga radiata 



(Section Leptixga.) Pubescent throughout and somewhat 

 ferruginous, the branchlets elongate and slender. Leaves sessile 

 or nearly so, 4- or 6-foliolate in my specimens, the rachis 4 to 8 

 cm. long, about 1 cm. broad, including the wings, which are 

 broadest at the truncate or subcordate summit, and taper gradu- 

 ally to the base, which does not extend quite to the very short 

 petiolules. Leaflets 7 to 15 cm. long, 3.5 to 7 cm. broad, the 

 lower successively smaller, oval-obovate, with blunt, or subcor- 

 date base and abruptly acuminate and obtuse summit, entire, 

 thin, bright-green, the venation mostly slightly impressed, and 



