MULFORD EXri.OKATlON OF THE AMAZ()^' VALLEY 



239 



upward, its ligiilos more than half the k'iii;tli of the oblong- 

 anthers, deeply cleft, the branches narrowly linear. Ovary sub- 

 globose, brown with a white crown. Style short, conic, about 

 lialf as long as the 2 subulate obtuse yellow stigmas. 



Ixiamas, 1,000 feet, Martin Cardenas, December 14, 1921 {no. 

 1911). 



Petiverl^ceae 



Microtea scandens 



Glabrous, the stems extremely slender, strongly sulcate, 

 green. Petioles slender, 1 to 2 cm. long, often twisted. Blades 

 5 to 10 cm. long, 2 to 4 cm. broad, lanceolate, acuminate and 

 acute, with the rounded base very al^ruptly contracted into the 

 petiole, entire, very thin, bright-green, the 12 to 15 slender sec- 

 ondaries starting- at almost a right angle with the midrib, be- 

 coming falcate toward the end, the venation sparse. Inflores- 

 cence very loosely paniculate, the branches liliform, elongate, 

 subtended by very small, lanceolate or linear reduced leaves. 

 Flowers white, loosely and at length distantly racemose, sub- 

 sessile, 1.5 mm. broad. Fruit 1 mm. broad, globose, sharply 

 tuberculate. 



Ixiamas, 800 feet, M. Cardenas, December 18, 1921 {no. 1942). 



Berberidaceae 



Berberis edentata 



Glabrous, except for a very minute downiness of the branches 

 of the inflorescence. Branches stout, blackish, densely leafy, the 

 leaves in crowded fascicles terminating short, thick, node-like 

 branchlets. Stipules very variable in size, the largest about 7 

 mm. long, 3 mm. wide, triangular-ovate, carinate or 3-nerved, 

 acute, thick and rigid. Petioles about 5 mm. long, stout, winged 

 by the abruptly contracted leaf-base, the blades about 4 to 5 cm. 

 long, by 1.5 to 2.5 cm. wide, oblong-oval or somewhat oblanceo- 

 late, entire, the margin narrowly thickened, yellowish and revo- 

 lute, the rounded or blunt summit tip]ied by a very short pungent 

 spine, the texture thick and rigid, the midrib very stout, the 

 venation strongly prominent on both sides, densely anasto- 

 mosing, the leaf drying of a yellowish-green color. Racemes 

 stoutly jDeduncled, compound, apparently recurved or drooping. 

 Flowers subsessile, but pedicelled in fruit. Sepals about 6 mm. 

 long-, 4 or 5 mm. wide, 3- or 5-nerved, oval. Petals about as long^ 



