Blake — New Plants of the Genus Stylosanthes. 47 



ovoid, compressed, 2.5 to 3 mm. long, 2.2 mm. wide, densely pilose, 

 laterally 2 or 3-nerved but not reticulate; upper joint fertile, quadrate, 

 2 to 2.2 mm. long and wide, rather densely spreading-pilose, prominently 

 2 or 3-nerved and reticulate on the sides; beak slender, slightly incurved, 

 pilosulous, 1 to 1.2 mm. long. 



Type in the U. S. National Herbarium, no. 701387, collected in the 

 Province of Mattogrosso, Brazil, July, 1892, by O. Kuntze. 



This plant was originally identified and recorded 1 by Kuntze as Stylo- 

 santhes leiocarpa Vog., but it belongs to the section Styposanthes and has 

 no relationship with that species. It seems to be most nearly related 

 to 5. sympodialis Taubert, known to me only from description, but differs 

 in the nature of its pubescence, its shorter secondary bract and seta, and 

 its persistently pubescent pod with shorter joints, the upper one with 

 more ribs. The two specimens from which the species is described are 

 plants of late season with the primary leaves fallen. 



Stylosanthes macrocarpa, sp. nov. 



Many-stemmed herbaceous perennial; stems spreading or ascending, 

 about 15 cm. long, sparsely branched, scarcely striatulate, rather densely 

 pilose with appressed or ascending hairs and on the upper part of the 

 internodes spreading-hispid ; leaves remote, 3-foliolate ; sheaths of the stip- 

 ules 3 to 4 mm. long, spreading-hispid with tuberculate-based hairs and 

 sparsely appressed-pilose, the teeth stiff, subulate, sparsely hispid, 3 to 5 

 mm. long; petioles sparsely pilose and hispid, 3 to 5 mm. long, the rachis 

 1 to 2.5 mm. long; leaflets elliptic to obovate-elliptic, 5.5 to 13 mm. long, 

 1.8 to 3.5 mm. wide, mucronate, rounded at base, subsessile, entire, firm, 

 light green both sides, sparsely hispid along costa beneath and usually 

 along margin, obscurely ciliate, the prominent lateral veins 3 or 4 on each 

 side; spikes subglobose or ovoid, 13 to 15 mm. long, evenly but not densely 

 hispid with tuberculate-based yellowish hairs, 5 to 10-flowered ; primary 

 bracts hispid-pilose particularly on the sheaths, pilose-ciliate, the outermost 

 often trifolioiate, similar to the leaves, the inner unifoliolate, the sheath 6 to 

 8 mm. long, the teeth 3.5 to 4 mm. long, the narrowly ovate-elliptic blade 

 about 3.5 mm. long; secondary bract 1, oblong, 4.5 mm. long, obscurely 

 trilobed with acuminate central lobe, sparsely pilose-ciliate; axis rudiment 

 in flower densely pilose, 2.5 mm. long including the hairs, in fruit stiff, 

 linear-subulate, 8 mm. long; bractlet 1, lance-oblong, pilose-ciliate, 3.5 

 mm. long; calyx 9 mm. long (including the 6 mm. long stipe-like base), 

 membranaceous, ciliate, otherwise glabrous, the upper lip shortly bifid, 

 the basal lobe longest, all obtuse; flowers evidently yellow; banner obovate- 

 suborbicular, slightly emarginate, not clawed, 6 mm. long, 5 mm. wide; 

 lateral petals obovate, clawed, auriculate on upper side at base of blade 

 and with a short blunt appendage within; one of the didymous anthers 

 twice as large as the others; fruit variable, the basal joint densely pilose, 

 sometimes dwarfed and only 1 mm. long, usually about 2 mm. long, or 



i Rev. Gen. 3 2 : 72. 1S98. 



