COLLECTED IN SOUTH AMERICA, I 885- 1 886 303 



Made 



ra, Brazil, Oct. 1886 (no. 1274. 1273 from Yungas, 

 6000 ft. is regarded by Dr. Britton as of this species also). 



Acalypha macrostachya Jacq. Hort. Schoenb. 2 : 63. pi. 24.5. 

 Unduavi, 8000 ft., Oct. 1885 (no. 1268. 1269, from Mapiri, 

 2500 ft., May 1886, may be a form of this, but my specimen is 

 fragmentary). 



Acalypha villosa Jacq. Enum. PL Carib. 32, fide Britton. June, 

 of Rivers Beni and Madre de Dios, Aug. 1886 (no. 1271) and 

 Falls of Madeira, Brazil, Oct. 1886 (no. 1272). 



- 



Acalypha callosa Benth. PL Hartw. 252, wax., fide Britton. Un- 

 duavi, 8000 ft, Oct. 1885 (no. 1270). 



Acalypha Brittoni sp. nov. 



Branchlets, petioles, and principal veins of the lower leaf-sur- 

 faces gray-puberulent ; branches slender, elongated, terete, striate, 

 reddish : stipules 5 or 6 mm. long, linear-attenuate, reddish : peti- 

 oles 5 or 6 cm. long, very slender: blades .75-1.25 dm. long, 

 4-6.5 cm. broad, ovate, lightly cordate at the base, abruptly con- 

 tracted into an attenuate acumination at the apex, sharply serrate, 

 very thin, the venation lightly prominent on both sides, the 

 secondaries about 6 pairs, strongly ascending, connected by numer- 

 ous straightish tertiaries : pistillate spikes only seen, the peduncles 

 terminal, solitary, 2 or 3 cm. long, sharply angled, the spike 5-7 

 cm. long, 2.5 cm. broad, densely flowered, obtuse: bracts nearly 

 1.5 cm. long, two thirds as broad, 5-parted nearly to the base, the 

 segments lanceolate, attenuate, the middle much the largest, the 

 outermost a little shorter than the intermediate : ovary blackish, 

 tuberculate, globose-oval, lightly lobed, the styles very stout, 

 much broader upward, long-pinnatifid. 



Mapiri, 5000 ft., May 1886 (no. 1260). 



Acalypha inaequalis sp. nov. 



Leaves gray and somewhat scurfy underneath : branchlets 

 numerous, slender, flexuous, purple : stipules 3-5 mm. long, 

 tapering regularly from the base to the acute point, thickish, 

 rigid, keeled: petioles .5-1 cm. long, stout, strongly channeled 

 above: blades 3-8 cm. long, 1-2.5 cm. broad, lanceolate, blunt 

 at the base, acuminate and obtusish at the apex, finely serrate, 

 thickish, pale green, the venation prominent underneath, the 

 secondaries about 8 pairs, stout, strongly ascending or suberect, 

 connected by the straightish tertiaries : spikes (staminate only 



