84 New Species of South American Plants 



Near F. tetrastachys. 



Collected by H. H. Rusby at the Falls of the Madeira in 

 Brazil, October, 1886. (No. 2376.) 



Tabernaemontana mjTiantha Britton. 



Glabrous except for a sparse and very short soft pubescence 

 on the lower leaf-surfaces. Leaves 8-17 cm. long by 3 to 7 cm. 

 broad, oblong, abruptly contracted at base into a short petiole 

 and at the summit into a short obtuse acumination, entire, mem- 

 branaceous, deep-green above, pale underneath where the very 

 slendex- venation is sharply prominent, the principal veins 

 about 18 pairs with some fainter ones intervening, diverging 

 nearly at a right angle with the midrib and slightly upcurved. 

 Much-branched panicles axillary, sessile, short and broad, 

 minutely subulate-bracted at the points of branching. Pedicels 

 slender, 3 or 4 mm. long, subulate-bracted at the base. Calyx 

 lobes distinct nearly to the base, 2 to 2.5 mm. long and nearly 

 as broad, oval-elliptical and with lighter margins. Corolla 

 tube about 10 mm. long, slender, the limb 12 to 15 mm. broad. 



Collected by H. H. Rusby at the Junction of the Rivers 

 Beni and Madre de Dios, Bolivia, August, 1886. (No. 2377.) 



Rauwolfia littoralis. 



Inflorescence and both leaf-surfaces minutely puberulent> 

 Branchlets slender and weak, the internodes about half the 

 length of their leaves. Total length of leaves 8 to 16 cm., their 

 breadth 4 to 8 cm., mostly rhomboid ally obovate, abruptly 

 contracted into a short petiole-like base and into a shoit, broad, 

 acute, point at the summit, entire, very thin, dark-green, the 

 venation slender, weak, finely reticulate, the principal second- 

 aries about 10 on each side, prominent underneath, falcately 

 ascending and obscurely anastomosing. Cymes between the 

 petioles small, loosely flowered, about 2 to 5 cm. broad, their 

 peduncles i to 3 cm. long, slender, the pedicels about as long 

 as the flowers, which are about 4 mm. long. Calyx crateriform 

 or sub-hemispherical, less than half the length of the flower, 

 sinuately lobed. Disk crateriform, the margin sub-entire. 

 Ovaries equaling the calyx, the style stout, cylindric, about as 

 long as the ovaries, exclusive of the annulus, which is nearly 

 a third of the total length and broad and conspicuous. Corolla 

 densely pilose within, not constricted, the lobes about one- 

 fourth the total length, spreading, ovate with rounded summit. 

 Anthers very small, sub-sessile, attached about the middle of 

 the corolla. 



"A tree 25 feet high, rare in thickets by the seashore, in 

 somewhat swampy ground near the mouth of the Buritaca 

 River, September 22, the flowers white. " (Herbert H. Smith, 



