MULFOKD EXPLORATION OF THE AMAZON VALLEY 



275 



ninbollate, or occasionally subracomose, the nnihcls sliort-pe- 

 duiicled, mostly S-flowered, tlie pedicels lilil'onn, about 1 cm. 

 long, bracted at the base and 2-bracteolate at about the middle, 

 the ])ractlets very small, herbaceous. Calyx 3 mm. broad, 

 8-g-landular. Petals yellow, 5 mm. long, obovate-spatulate, con- 

 cave, entire. Stamens much shorter than the petals, uneciual, the 

 filaments subulate, connate at the base, the anthers small, whitish 

 or pale, the connective much thickened. Styles slightly exceed- 

 ing the stamens, the summits flattened, the stigmas cristate. 

 Ovary ])ilose. 



Espia, 3,500 feet, 0. E. White, July 27, 1921 {no. 429). 



Banisteria canaminensis 



(Heteropterys H. B. K.) Tomentellate throughout, the 

 stems somewhat scabrous, reddish, lightly sulcate. Leaves oppo- 

 site, only the upper seen, the petioles 5 mm. long, stout, bearing 

 2 small black glands at the summit, the blades 5 cm. long and 

 half as wide, oval with blunt or rounded base and lightly mncro- 

 nate sununit, entire, thick, subglabrous above, softly tomentellate 

 beneath, wliere the venation is strongly prominent, the second- 

 aries 4 on each side, strongly falcately ascending, connected by 

 a loose and prominent reticulation. Panicles terminal, large, 

 lax, ferruginous, the flowers crowded at the ends of the branch- 

 lets, the bracts small, thick, densely ferruginous. Calyx 2 mm. 

 broad, 10-glandular, two of the glands smaller, the sepals thick, 

 erect, equaling the filaments, oval with rounded summit, lightly 

 denticulate. Petals 3 or 4 mm. long, shortly and stoutly nnguicu- 

 late, yelloAV, broadly oval, nearly plane, lightly denticulate. Sta- 

 mens 10, all with anthers, half the length of the petals, subequal, 

 lightly connate at the base, the anthers lightly recurved, the con- 

 nective black, dorsally thickened, the tliecae white. Ovary pilose, 

 the styles about equalling the stamens, very stout, erect, trun- 

 cate. A single small fruit seen is apparently immature. The 

 body is not appendaged, and is pilose, the wing 2 cm. long, 5 

 mm. broad, lightly ascending, the lower half of the inner margin 

 shalloAvly excavated. 



Canamina, 4,000 feet, 0. E. White, July 21, 1921 {no. 259). 



Banisteria Bopiana 



(Heteropterys H. B. K.) (Fruiting specimen.) Pedicels 

 etc., appressed-pilose, otherwise glabrous. Branchlets stout, 

 leafy, the leaves opposite, glandless, the stipules not apparent. 



