MULFORD EXPLORATION OF THE AMAZON VALLEY 



367 



In shallow water about Lake Rogagua, 1,000 feet, H. H. 

 Rushy, November o, 1921 (no. 1421), the type; Ixiamas, 800 feet, 

 0. E. White, December 19, 1921 {no. 2310). Dr. White says 

 "Flower magenta-colored, with deep magenta spots on throat 

 and lip. ' ' 



Beloperone viridissima 



Inflor(\scence, etc., ])nbesceiit with spreading hairs, the foli- 

 age bright-liglit-green, minutely and sparsely white jDuberulent, 

 the stems pale-green, very leafy. Leaves 2 to 4 dm. or more 

 long, 4 to 8 cm. broad, oval, obovate or oblanceolate, abruptly 

 acuminate and acute, gradually tapering into a short margined 

 petiole-like l)ase, lightly and irregularly sinuate-dentate, thin, 

 the midrib mostly channeled above, prominent beneath like the 

 slender secondaries, which are 10 to 15 on a side, strongly fal- 

 cate-ascending, lightly connecting almost at the margin, the con- 

 necting reticulation spai'se and very slender. Panicles terminal, 

 long-pednncled, ample, mnch-branched, the branches strongly as- 

 cending, mosth' snbtended l)y setaceous-linear bracts, like those 

 of the sessile flowers, the floral bracts mostly a little more than 

 half the length of the calyx. Calyx-tul)e cnpulate, very short, 

 the lobes abont 5 nnn. long, one a little larger, narrowly lance- 

 linear and long-attenuate. Corolla-tube 2.5 cm. long, lightly 

 curved, narroAvly infundibular, the basal portion contracted. 

 Lower lip 1.5 cm. long, narrow, minutely 3-toothed, the teeth ob- 

 tnse. Upper lip a little shorter and much broader, concave. 

 Stamens almost equaling the upper lip, the style exceeding it, 

 obtuse. Fruit not seen. 



Huachi, 1,800 feet, 0. E. White, August 13, 1921 {no. 550). 



Rl'BIACEAE 



FLEXANTHERA gen. nov. 



Calyx-tube turl)inate, the limb abruptly expanded, short, five- 

 lobed, imperfectly deciduous. Corolla campanulate, five-lobed, 

 valvate-induplicate, the terminal portions more or less concave 

 and pubescent within. Stamens five, borne about the middle of 

 the corolla-tube, exserted, the filaments dorsally flattened, pilose 

 at the base, the anthers oblong, compressed, basally attached, 

 sagittate, at length reflexed and recurved, completely laterally 

 dehiscent. Ovary two-celled, the placentae elongate, fleshy, cen- 

 trally affixed by the lower half, the numerous ovules imbedded in 



