MULFORD FATl.ORATIOX OF THE AMAZON VALLFA' 



377 



iiieiits short and slender, the anthers oblon<j,-, stout, extending 

 above the base of the corolla-lobes. Style tiliform, the summit 

 thickened, the lobes about half its lengtli, equaling the corolla- 

 lobes, flattened, broadened upward. 



Tumapasa, 1,500 feet, M. Cardenas, December 9, 1921 {no. 

 1968) ; also collected by R. S. AVilliams in the same locality, 1,800 

 feet, January 22, 1902 {WUIknns, 566). 



Mapouria ( ?) costata 



Closely and densely grayish-puberulent throughout, the 

 upper leaf-surfaces minutely so. Branchlets stout, terete. Stip- 

 ules about 1 cm. long, broadly ovate, obtuse, thickisli, minutely 

 ciliate. Leaves sessile or subsessile, 5 to 10 cm. long, 2.5 to 5 

 cm. broad, oval, obtuse or acutish, rounded to subcordate at the 

 base, entire, thickisli, rigid, the midrib and secondaries mostly 

 narrowly grooved on the upper surface, very stout and promi- 

 nent beneath, the secondaries 12 to 15 on a side, diverging from 

 the midrib, almost at a right angle, the outer portions abruptly 

 upcurved and connecting strongly close to the margin, connected 

 by a stout and close anastomosis. Cymes terminal, shortly ])e- 

 duncled, the peduncle strongly costate, the branches peduncled, 

 densely flowered toward the ends. Calyx campanulate, 1.5 mm. 

 long and broad, very shortly 5-toothed. Corolla-tul)e campanu- 

 late, densely white-pilose Avithin, about as long as the calyx, 

 much shorter than the lobes, which are ovate, the upper two 

 thirds much thickened, and dark-colored, the summits inflexed 

 in the bud. Stamens attached in the sinuses of the corolla. 

 Style short, stout, cleft nearly to the base, the branches thick- 

 ened upward. 



Near Reyes, 1,000 feet, H. H. Rushy, October 26, 1921 (no. 

 1S44). *'A low shrub with white flowers." 



Psychotria ramiflora 



Inflorescence minutely and sparsely puberulent. Branches 

 elongated and slender, obtusely 4-angled and sulcate. Stipules 

 5 mm. long and nearly as broad, ovate, obtuse or acutish. Peti- 

 oles (only the upper seen) 1 to 1.5 cm. long, the margins strongly 

 upcurved. Blades 1 to 1.5 dm. long, 5 to 7 cm. broad, oval, very 

 abruptly and shortly acuminate, obtuse or acutish, the base 

 slightly produced into the petiole, entire, thin, deep green, all 

 the venation slender, lightly prominent on both sides, the midrib 



