Vol. 34, pp. 119-120 June 30, 1911 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW ASPILIA FROM TRINIDAD. 

 BY S. F. BLAKE. 



A composite from Trinidad, British West Indies, recently 

 referred to me for determination by Dr. N. L. Britton, proves 

 to represent a new species of Aspilia. It is described here in 

 order that the name may be available for use in another con- 

 nection. 



Aspilia nigropunctata Blake, sp. nov. 



Shrub 2 meters high ; stem herbaceous above, slender, strigose, the inter- 

 nodes 7 to 13 cm. long; leaves opposite; petioles 6 to 11 mm. long, hispid- 

 pilose or strigose; blades ovate, 6.5 to 10 cm. long, 3 to 4 cm. wide, acumi- 

 nate, at base acute, papery, serrulate (the teeth small, 3 to 6 mm. apart), 

 dark green above, somewhat paler green beneath, evenly but not densely 

 strigose and strigillose on both sides, bearing black dots along the veinlets 

 on the lower surface, triplinerved about 1 cm. above the base, the primary 

 veins prominulous on both sides, the secondaries not prominulous; heads 

 1 to 5 at tips of stem and branches, about 2 cm. wide, on puberulous and 

 strigose pedicels 3 to 5 cm. long; disk 6 to 8 mm. high, 7 to 9 mm. thick; in- 

 volucre 3-seriate, 9 to 10 mm. high, scarcely graduated, the outer phyllaries 

 4, oblong-ovate, 3 to 6 mm. wide, with pale indurated base and subequal 

 reflexed or spreading acute black-dotted herbaceous apex, strigose on their 

 exposed surface; two inner series oblong-oval, rounded, subscarious, essen- 

 tially glabrous, black-dotted and lined above ; rays yellow, about 8, neutral, 

 the lamina oval, 9 to 11 mm. long, 5 mm. wide; disk corollas yellow, with 

 the teeth papillose-barbate within near the margin, otherwise glabrous, 

 5 mm. long (tube slender, 1.2 mm., throat tubular-funnelform, 2.3 mm., 

 teeth triangular, 1.5 mm.); achenes somewhat compressed, blackish brown, 

 obovoid, 3.5 mm. long, rather sparsely pilose, sometimes narrowly wing- 

 margined toward base; pappus coroniform, 0.5 mm. long, lacerate-fimbriate, 

 contracted at base into a short neck, without awns. 



Type in the U. S. National Herbarium, No. 1,047,159, collected on a 

 moist bank at Mt. Tocuche, Trinidad, April 3-5, 1920, by N. L. Britton, 

 T. E. Hazen, and W. Mendelson (No. 1320). 



23— Pboc. Biol. Soc. Wabh.. Vol. 34, 1921. (119) 



