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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 4 



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1 mm. latum, oblongum, glabrum, 5-ovulatum, gynophoro 2.5 mm. longo, glabro vel 

 sparsissime puberulo. Fructus ignotus. 



Type Collection: G. Klug 1353, "Mishuyacu near Iquitos, alt. 100 meters, for- 

 est/' Dept. Loreto, Peru, May 1930 (HOLOTYPE US, isotype F). 



The characters of M. klugii place it nearest M, unijugum from which it differs 

 in its narrowly elliptic leaflets borne on much shorter petioles and its completely 

 glabrous ovary. 



27. Macrolobium bifolium (Aubl.) Pers. Syn. Pi. 1: 39. 1805. Figure 9. 



Vouapa bi folia Aubl. PI. Guian. 1: 25. pi 7. 1775. 

 Macrolobium Vouapa Gmel. Syst. Nat. ed. 13. 2(1): 93. 1796. 

 Macrolobium hymenaeoides Willd. Sp. Pi. 1: 186. 1797. 

 Vuapa bi folia (Aubl.) J. St.-Hil. Expos. Fam. 2: 209. 1805. 



FIG. 9. Geographic distribution of M. bifolium. 



Macrolobium stamineum Mey. Prim. Fl. Esseq. 18. 1818. 

 Voua'pa staminea (Mey.) DC. Prodr. 2: 511. 1825. 

 Macrolobium elegans Miq. Ann. Sci. Nat. III. 1: 40. 1844. 



Tree 2-20 m. tall, 2-4 dm. in diameter, the branchlets and leaves glabrous or 

 rarely the branchlets very minutely puberulous. Petioles (4-)10(-18) mm. long, 

 canaliculate on the upper surface; the rachis rudiment about 5.5 mm. long, early 

 caducous, linear-acicular. Leaflets (6.5-)10(-24) cm. long, (2.5-)4(-8) cm. wide, 

 inequilateral, arcuate to falcate, elliptic to oblong, the base inequilateral, acute, 

 the apex acute to acuminate, the extremity usually obtuse, entire to emarginate, 

 epunctate; costa sulcate above, salient on the lower surface, the venules promi- 

 nent to conspicuous. Inflorescences to 19.5 cm. long, averaging about 5-7 cm. 

 long, borne singly or 2-5 in fascicles, the axis densely puberulous, the peduncles 

 1-6 mm. long; bracts 0.5-2 mm. long, 1-2 mm. wide, caducous, triangular, acute, 

 ciliolate, glabrous within, densely puberulous externally; pedicels (1.5*)5(-6.5) 

 mm. long, densely puberulous; bracteoles (3~)5(-8.5) mm. long, 2.5-4.5 mm. wide, 



