MULFORD EXPLORATION OF THE AMAZON VALLEY 



269 



OXALIDACEAE 



Lotoxalis Pseudosepium 



Petioles and inflorescence very sparsely piiherulent, the lower 

 leaf-surfaces g-rayisli Avitli a very minute puherulence. Stems 

 slender, brancliino;, height unknown. Stipules very small, ovate, 

 acute, caducous. Petioles 2 to 3 cm. long, tiliform. Leaflets 3, 

 the petiolules about 1 mm. long, the rachis 5 to 8 mm. long, the 

 blades 2 to 2.5 cm. long and about half as wide, oval, obtuse at 

 both ends, entire, very thin, the venation obscure, very slender, 

 the secondaries about 8 on each side. Peduncles filiform, about 

 as long as their petioles, mostly bifid, with 2 or more flowers on 

 each branch, the branches subtended by minute setaceous bracts, 

 the flowers pedicelled. Sepals 2 or 3 mm. long, lanceolate, acumi- 

 nate, persistent. Corolla violet, twice the length of the calyx. 

 Pod 5 cm. long and two thirds as broad, oval or ovoid, with broad 

 truncate base and subtruncate summit, sharply 5- or 10-nerved, 

 bearing the short filiform styles and stigmas. Seeds brown, oval, 

 nearly as broad as long, obtusely triquetrous, strongly muricate, 

 the Avarts obtuse, in somewhat obliqnely transverse rows. 



On the pampas about Lake Rogagua, 1,000 feet, M. Cardenas, 

 November 1, 1921 (no. 1393). 



lonoxalis canaminensis 



Pilose with long fine white spreading hairs, Avhich become 

 sparsely scattered on the scape and inflorescence, and are want- 

 ing on the npper leaf-surfaces. Tul)ers densely massed, ovoid, 

 acute, 3 to 5 mm. long, the intermingled stipules mostly a little 

 more than 1 cm. long, ovate or lance-ovate, acuminate, thin, light- 

 brown, ciliate, bearing 3 or more strong nerves on the back. 

 Leaves all radical, the petioles filiform, 6 to 12 cm. long. Leaf- 

 lets 3, on petiolules little longer than their thickness, the largest 

 3 cm. long by nearly 4 cm. wide, oval, emarginate, the base very 

 broad, somewhat rounded; thin, light-green, the venation thin, 

 crooked, sparse, the principal secondaries 2 on each side, the 

 upper pair incurved toward the tip of the notch. Scapes filiform, 

 longer than the leaves, the flowers, 7 in my specimen, on very 

 slender pedicels, which are longer than the flowers and are sub- 

 tended by very short, broad, thin bracts. Calyx 5 mm. long, 

 closely appressed, and the summit somewhat contracted, the 

 sepals ovate, obtusish, the bright-red glands oblong, small. 

 Corolla about 13 mm. long. Stamens about equaling the calyx, 

 the anthers very small. Dissecting material wanting. 



