Blake — New Plants of the Genus Stylosanthes. 53 



•ose, scarcely setose, 2 mm. long, the rachis 1 to 2 mm. long; leaflets ob- 

 scurely petiolulate, lance-elliptic to elliptic, or the upper linear-elliptic, 

 8 to 17 mm. long, 1.5 to 4 mm. wide, acute to acuminate, mucronate, at 

 base rounded, above purplish-tinged, rather densely spreading-pilose es- 

 pecially along the midvein, along margin pilose-setose throughout with 

 spreading hairs with slightly enlarged purplish bases, beneath green, rather 

 densely pilose with ascending or subspreading hairs, along costa sparsely 

 pilose-setose, the lateral veins 4 or 5 pairs, prominulous beneath, scarcely 

 forming a marginal nerve; spikes axillary and terminal, oblong or subglo- 

 bose-oblong, 7 to 10 mm. long, densely pilose-setose, about 7-flowered; pri- 

 mary bracts unifoliolate, the sheaths purple, 3 to 4 mm. long, sparsely pilose, 

 ciliate, and with the teeth (2 to 2.5 mm. long) and the sessile leaflet (3 to 

 5 mm. long, narrowly elliptic) pilose-setose with spreading purplish hairs; 

 secondary bract 1, oblong-ovate, 2.7 mm. long, acuminate, purple at tip, 

 pilose-ciliate and densely pilose within above the middle; axis rudiment 

 none; bractlet 1, precisely similar in every way to the secondary bract, 

 or sometimes a little narrower and shorter; calyx 8 mm. long (including 

 the 4.5 mm. long stipe-like base), the limb ciliate, the upper lobes longer 

 than the lateral, rounded, the lowest lobe longest, ciliate and sparsely 

 pilose, acutish; banner broadly obovate, 5.8 mm. long, 3.5 mm. wide; 

 lateral petals clawed, auriculate-spurred and appendaged within; stamens 

 with didymous anthers equaling the style, considerably longer than the 

 others; lower joint of fruit infertile, turbinate, densely pilosulous, 0.8 

 mm. long; upper joint oblong-ovoid, plump, 2.5 to 3 mm. long, 1.9 to 2.2 

 mm. wide, 1-nerved and loosely reticulate on the sides, sparsely dotted 

 with sessile glands, otherwise glabrous, the weak strongly inflexed beak 

 about 0.2 mm. high. 



Type in the U. S. National Herbarium, no. 301895, collected at Bolafios, 

 Jalisco, Mexico, September 10-19, 1897, by J. N. Rose (no. 2942). 



This species is closely similar in general appearance and in pubescence 

 to Stylosanthes dissitiflora Robinson & Seaton. In that species, how- 

 ever, now represented in the U. S. National Herbarium by five collec- 

 tions, including the type, from the vicinity of Guadalajara and Etzatlan, 

 Jalisco, the leaves are nearly glabrous except for the stiff hairs of the 

 margin and veins, the flowers are few and scattered in the spike, the 

 bractlets are two, and the fruit is papillose-puberulous and usually two- 

 nerved on the sides. 



