234 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



lance-ovate, mostly inequilateral, many stroiift-ly so and strongly 

 falcately curved, obtuse, entire, moderately thick, about 7-nerved, 

 the nerves extending into the very short petiole, slender, 

 sharply prominent, regular, sparingly branched, the branches 

 mostly erect or strongly ascending. Branches of the raceme 

 opposite, mostly one- or two-flowered, the flowers on very short 

 stout pedicels. Calyx cupulate, 6 to 7 mm. long and about half 

 as broad, thick, finely many-nerved or wrinkled, obscurely and 

 irregularly toothed. Petals 4 or 5 cm. long, needle-shaped or 

 very narrowly linear, exceeding the filiform filaments. Anthers 

 linear, 2 mm. long. Style equaling the petals. 



On the River Ibon (eastern Bolivia), about 200 feet altitude, 

 0. E. White, February 11, 1922 (no. 23GS). 



''Flowers scarlet-crimson and yellow, the anthers purple." 



Var. (?) macrocalyx 



This form varies from the type in having flowers about a 

 third longer, of a bright yellow color, and with the cah*x twice as 

 long. The leaves are more strongly falcate. 



On the Rio Ibon, Beni, 200 feet, 0. E. White, February 11, 

 1922 {no. ;i399). 



Phoradendron Rusbyanum Trelease 



(QuADRANGULARES.) Pseudodichotomous, the rather long in- 

 ternodes with basal cataphyls only, androgynous. Internodes 

 moderate (2X30-40 mm.), smooth, somewhat 4-angied and 

 golden-glistening. Cataphyls a single pair toward the base, 

 blunt and suberect. Leaves subspatulately oblong or obovate, 

 very obtuse, 1 X 3-4 cm., cuneately subsessile. Spikes mostly 

 clustered, short (about 10 mm.), with 2 or 3 slender joints, 6- to 

 12-flowered in 4 or 4 + 2 series ; peduncle 1-3 mm. long. Fruits 

 round-ellipsoid, smooth, 1-1.5 X 2 mm.; sepals closely inflexed. 



Reyes, at 1,000 feet, H. H. Rushy, {no. 1714). Type specimen 

 in Trelease herbarium. 



Ol.ACACEAE 



Heisteria ixiamensis 



(Fruiting specimen.) Glabrous. Branclilets elongate, slen- 

 der, terete, leafy. Petioles to 2 cm. long, dark-brown, narrowly 

 grooved above. Blades to 18 cm. long, by 8 cm. broad, oblong to 



