New Species of South American Plants 11 



sharply so beneath, the secondaries lO or 12 on a side, rather 

 crooked, widely spreading and the eads up-curved and looped 

 together near the margin; another very slender strongly sinu- 

 ate line very closi to the edge, the remaining venation finely 

 and strongly reticulate. Staminate spikes mostly 5, shortly 

 and stoutly peduncled or sessile in the axils, 3 to 5 cm. long, 

 4 or 5 mm. thick, densely flowered. Rachis thick, its bractlets 

 minute, ciliate. _Eilaments about i mm. long, thick, the anther 

 half as long, cordate or reniform. 



"A large tree in a damp forest, Don Amo Road, about 500 

 feet, January 13." (Herbert H. Smith, Colombia, No. 424.) 



Myriocarpa magnifica. 



Stems and petioles scabrous, the lower leaf-surfaces bright 

 green and minutely scabrellate, the upper grayish and densely 

 beset with linear-oblong cystoliths arranged more or less 

 in radiate groups, and minute hairs. Petioles to 4 cm. long, 

 stout, gray, striate. Blades 15 to 25 cm. long and 7 to 12 cm. 

 wide (or very much larger ?) ovate or somewhat rhomboidal,. 

 with obtuse to rounded base, and acuminate and acute summit,^ 

 very thin, crenate-dentate, the sinuses obtusish, the teeth 

 mostly with a minute apiculation. Venation broad, not prom- 

 inent, the secondaries about 8 or 9 on a side, strongly falcate, 

 thin, ascending, connected by numerous straight or regularly 

 curved tertiaries. Racemes to 3 dm. long, very slender, pan- 

 iculate, the panicle mostly peduncled, the peduncle short, 

 filiform, bearing occasional long, lance-ovate, green bracts. 



Staminate flowers 1.5 mm. broad, when expanded, the 

 sepals 4, hyaline, very broad, sub-equal, the 4 stamens sub- 

 sessile, very broad. 



Pistillate flowers from very minute bracts, the pistil very- 

 villous, short stipitate, ovoid, acuminate, the style concealed, 

 by the dense hairs. 



"A tree-like shrub to 6 or 8 feet. Local in damp forest 

 near streams, 1,000 to 2,000 feet, December to January. Col- 

 lected near Cacagualita, 1,500 feet, December 23." (Herbert 

 H. Smith, Colombia, No. 1422.) 



Another specimen, from the Menca Road, 1,000 feet, con- 

 sists of one leaf, which may be this species. It is 4 dm. long 

 and 2.5 dm. broad, on a petiole 2 dm. long. 



Myriocarpa obscura. 



Pistillate Plant. — Younger portions minutely soft-gray- 

 tomentellate, the lower leaf surfaces obscurely sparse-pilose, 

 the upper clothed with cystoliths. Stems stout, red. Petioles- 

 to 2 cm. long, stoutish, dilated at the base. Blades 6 to 15 cm. 



