COLLECTED IN SOUTH AMERICA, I 88 5- 1 886 305 



broadly ovate, keeled, rather abruptly contracted into a linear 

 attenuate termination, petioles .25-1 dm. long, rather weak, chan- 

 neled above, striate underneath : blades 1.5-3 dm. l° n gi 6-8 cm. 

 broad, oblong or oval, blunt or rounded at the base, very abruptly 

 short-pointed at the apex, finely or obtusely serrate-dentate, thin, 

 bright green, the venation prominent underneath, the secondaries 

 about 12 pairs, strongly incurved, mostly connecting at the margin 

 and connected by the numerous crooked tertiaries : dioecious, the 

 staminate spikes from the upper axils, .8-1.25 dm. l° n g> 3 mm - 

 thick, sessile, densely flowered, gray. 



Unduavi, 8000 ft., Oct. 1885 ( nos. 1420 and 2610). 



Dr. Britton says " The same as Lechler's no. 2408, the pistil- 

 late spike terminal, 1 dm. long, 6 mm. broad.'* This agrees with 

 Mr. Bang's specimens of the pistillate plant (no. 2610), in which 

 the pistillate spike is gray and densely flowered ; scales thick, 5 

 mm. broad when flattened, completely enclosing the ovary, about 

 1 mm. long, exclusive of the (about 14) linear acuminate acute 

 teeth, the central 3 mm. long, gradually shorter toward the 

 edges, the outermost 1 mm. long ; sepals thick, broadly ovate, 

 about 1 mm. long ; ovary 1 mm. long, densely pilose ; style and 

 stigma blood-red, 2 mm. long, 1 mm. broad, thickish, strongly 

 pinnatifid. 



Acalypha erosa sp. nov. 



Leaf-surfaces minutely papillose, inflorescence pubescent : 

 branchlets elongated, slender, irregularly striate : stipules 3 or 4 

 cm. long, lance-ovate, acuminate and acute, brown : petioles 1—2 

 cm. long, stoutish : blades 1-2 dm. long, 5-7 cm. broad, oblong 

 to obovate, narrow but slightly cordate at the base, abruptly short- 

 pointed but obtuse at the apex, very coarsely and irregularly den- 

 tate, thin, the midrib and 14-16 pairs of lightly upcurved slender 

 secondaries prominent on the lower side, the venation lightly re- 

 ticulate : only young staminate spikes seen, the largest 7 cm. 

 long, 3 mm. thick. 



Guanai, 2000 ft., May 1886 (no. 1757). 



Alchornca latifolia Sw. Prod. Veg. Ind. Occ. g8,jide Britton, 

 Mapiri, 2500 ft., May 1886 (no. 2656). 



Alchornea Pearcei Britton sp. nov. 



Leaves minutely downy on the lower surfaces, pilose in the 

 axils of the midrib : branches elongated, densely leafy : petioles 

 1-2 cm. long, very stout : blades 1— 1.5 dm. long, 4-6 cm. broad, 



