MULFOKD EXPLORATION OF THE AMAZON VALLEY 



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Acalypha Douilleana 



Young portions, ])etiolos, etc., niinntely gray-pnberulent. 

 Branchlets slender, leafy. Stipules 5 to 7 mm. long, setaceous. 

 Petioles 2 to 8 cm. long, very slender, narrowly grooved above. 

 Blades 10 to 12 cm. long, 3 to 6 cm. broad, ovate, with rounded 

 base and abruptly and acutely acuminate summit, lightly serrate- 

 dentate, very thin, bright-green, the venation very slender, not 

 prominent, the secondaries about G on each side, including the 

 basal pair of nerves, strongly falcate-ascending, connected by 

 numerous straightish tertiaries. Terminal spike pistillate, ses- 

 sile but interrupted at the base, densely flowered elsewhere, 

 about 7 or 8 mm. thick, purple with the numerous stigmas. Stam- 

 inate spikes solitary in the axils, very small, with or without a 

 basal ])istillate flower. Bracts of the pistillate flower green, 

 about 4 nnn. long, divided nearly to the base into 7 to 9 nar- 

 rowly linear pilose lobes, the outer of which are successively 

 shorter. Ovary spheric, about 1 mm. in diameter, minutely muri- 

 cate. Stigmas purple, distinct, 7 or 8 mm. long, bearing a few 

 linear lobes. Staminate flowers undeveloped. 



Cananiina, 4,000 feet, H. H. Rushy, July 15, 1921 {no. 74). 

 "A shrub, 4 feet high, in rich shaded soil in edge of forest." 

 Species dedicated to Mr. A. Douille, the generous manager of the 

 Canamina plantation, to whose kind assistance the party owes 

 much of its success. 



Acalypha variegata 



Softly pubescent with gray hairs, those of the stem more or 

 less retrorse or divaricate. Monoecious, the pistillate spike ter- 

 minal, the staminate solitary in the axils. All parts of the plant 

 extremely variable in size. Stems rather stout, lightly angled. 

 Stipules 5 to 8 mm. long, subulate and attenuate. Petioles to 4 

 or 5 cm. long, stout, flattened or grooved on the upper surface. 

 Blades to 1 dm. or more long, and 5 or 6 cm. wide, ovate with sub- 

 rotund base and abruptly acuminate and acute summit, serrate, 

 rather thin, purplish, especially when young, densely and softly 

 gray-hairy beneath, rough-hairy on the principal veins above. 

 Venation slender, but appearing stout beneath by their dense 

 hairiness, the secondaries 8 or 9 on each side, strongly falcate, 

 loosely connected by the tertiaries. Staminate spikes immature, 

 1 or 2 cm. long. Pistillate spike solitary, shortly and stoutly 

 peduncled, 8 to 10 mm. wide, dense. Petioles of the bracts 1 to 

 1.5 mm. long, the bract concave, the inner side short and toothed, 

 the outer side about ll-parted, the segments narrowly subulate, 



