MULFORD EXPLORATIOK OF THE AMAZON VALLEY 



371 



10-ncTved, slig-litly oiilar,<>-od ixhowt the middl(\ the lobes 5 mm. 

 long, broad, obtuse, thick, tomentose on the inside. Filaments 

 8, 5 with anthers, attached a little above the middle of the tube, 

 unequal, the longest fi mm. long, tapering upward, the lower por- 

 tion flattened and densely pilose, the antliers rounded, small. 

 Disk black, 1 mm. high, thick and fleshy, the margin sinuate. 

 Style 8 mm. long, filiform, the stigma clavate. 



Rurrenabaque, 1,000 feet, H. H. Rushy, October 15, 1921 {no. 

 1296). 



Duggena Whitei 



Densely pubescent with yellowish-gray hairs, those of the 

 stem divergent or slightly reflexed, tlie upper leaf surfaces 

 rather sparsely strigose. Stems tall and slender, with elongate 

 internodes, terete. Interpetiolar stipules entire, more than twice 

 the length of the petioles, subulate with long-attennate summit. 

 Petioles 2 to 4 mm. long, rather stout. Blades 7 to 14 cm. long, 

 2 to 6 cm. broad, ovate, Avith obtuse base and acuminate and acute 

 summit, entire, thin, deep-green and somewhat strigose above, 

 yellowish-gray beneath, where the slender midrib and strongly 

 ascending secondaries, about 10 to 12 on a side, are lightly prom- 

 inent, the venation scanty and obscure. Panicle in my specimen 

 about 2 dm. long, long-peduncled, the peduncle and rachis stout. 

 Bracts narrowly linear-attenuate, unequal, mostly longer than 

 the longest pedicels, which, in flower, are about 3 mm. long, slen- 

 der and mostly divergent, the flowers mostly in threes. Calyx 

 nearly as long as the pedicel, the tube broadly ovoid or sub- 

 globose, about as long as the longest tooth, the 4 teeth subulate 

 and acuminate. Corolla puberulent, the tube 4 or 5 mm. long, 

 very slender, the throat moderately enlarged, the 4 lobes three 

 fourths as long as the tube, oval, thickish, widely spreading. 

 Anthers and style reaching beyond the middle of the tube, the 

 stigma entire, truncate. 



Specimen without collection date (no. 1294 A). It may be the 

 same as no. 2350, collected at Rurrenabaque, Bolivia, 0. E. 

 White, January 13, 1922, although its flowers are more slender. 



Sabicea acutissima 



Tomentellate throughout. Branches elongate, stoutish, 

 terete, gray. Stipules 1 cm. long, 6 mm. broad, ovate from a 

 broad base, acute, reflexed, herbaceous, and colored like the 

 leaves. Petioles to 2 cm. long, the narrow margins involute, 



