MULFORD EXPLORATION OF THE AMAZON VALLEY 



241 



filiform, the fully expanded flowers about 2 nun. hroad, setose 

 with long- shining hairs. J'istilate racemes nearly 2 dm. long, 

 including the filiform peduncle, loosely flowered, the bracts very 

 unequal, the largest aliout 1 cm. broad, subrotund, thin, pale, 

 ciliate, the flowers mostly about T), sliort-pedieelled. Fruit brown, 

 () or 7 nun. broad, subrotund. 



This plant was first collected by Mr. Bang, at Coripata, March 

 4, 1894 {no. 2074) and doubtfully referred to C. tropaeolifolia 

 DC. It was collected twice on the Mulford Exploration : Eur- 

 renabaque, 1,000 feet, M. Cardenas, November 24, 1921 (no. 

 1797) and at the same place, H. H. Rushy, October 6, 1921 {no. 

 811). All these specimens perfectly maintain the specific char- 

 acters. 



Abuta boliviana 



Scabrescent and inore or less grayish throughout, the 

 branches stout, terete, striate. Petioles 6 or 7 cm. long, slender, 

 terete, nerved, the blades thick and rigid, 1 to 1.5 duL long, 7 to 

 9 cm. wide, ovate, abruptly very short-pointed and acute, with 

 truncate or subcordate base, entire, above pale-green and lightly 

 sca1)rescent, with the principal veins impressed, beneath gray 

 and harsh, with the stout venation prominent, 5-nerved, the 

 lowest pair of nerves much weaker, connecting with the others by 

 a series of strong loops near the margin, all connected by a loose 

 and stout reticulatioiL Panicles axillary, branched from the base, 

 very loose, the branches slender, the flowers sessile, or on very 

 short and thick pedicels. Only staminate flower seen. Sepals 

 3-seriate, the outer very small, subconnate, the inner about twice 

 as large as the second series, which are slightly limbriate or cili- 

 ate. Stamens 6, equal and similar, all distinct, erect, the fila- 

 ment stout, slightly enlarged upAvard, the anthers broader than 

 long. 



Rurrenabaque, 1,000 feet, 0. E. White, November 25, 1921 

 {no. 1812). 



Somphoxylon (f) sp. 



Glabrous or the inflorescence sparsely and minutely puberu- 

 lent. Stems stout, of spongy texture, much wrinkled in drying, 

 the branchlets slender, sharply nerved or angled. Petioles to 

 2 dm. or more long, very stout, strongly costate or angled. 

 Blades to 2.5 dm. long, mostly a little longer than the petioles but 

 sometimes shorter, ovate, nearly as broad as long, entire, trun- 



