OP ARTS AND SCIENCES. 453 



5-7-lobed, crispately denticulate, 1 to li- inches long and exceeding 

 the petioles, very scabrous but naked above, finely pubescent beneath 

 (especially the veins), as also the petioles, peduncles, and receptacles: 

 peduncles equalling or exceeding the leaves ; receptacles suborbicular, 

 eccentrically peltate, 8-12 lines broad, the black margin somewhat 

 crispate : female flowers few and scattered. Rio Blanco, in low wet 

 places ; June. (39.) — " Barbodillo " ; used like the last. 



Urera Caracasana, Griseb. A small tree, 18 feet high, with 

 dark pink flowers and very stinging foliage. Barranca. (133.) 



BoEHMERiA Palmeri. A shrub, 8 feet high, covered throughout 

 (except the upper side of the leaves) with a fine soft pubescence: 

 leaves opposite and alternate, or on the branchlets all alternate, ovate- 

 lanceolate, acuminate, rounded at base, or the alternate ones subcune- 

 ate at base and with petioles two or three times as long, the larger 

 3 to 5 inches long by 1^ to 2^ broad, ci-enately toothed, slightly sca- 

 brous and minutely strigose above, at length bullate : spikes mostly 

 leafy at top, 2 to 4 inches long : fruit pubescent, ovate, more or less 

 compressed, immarginate. Tequila, near water. (419.) — Related to 

 B. bullata. 



PouzoLziA Palmeri. A shrub, 5 to 8 feet high, with smooth 

 brown bark, the branchlets pubescent : leaves ovate or oblong-lanceo- 

 late, narrowly and acutely acuminate, cuneate at base, entire, not 

 canescent, ciliate, finely strigose above, subtoraentose beneath, 1 to 3 

 inches long by |- to IJ- broad; stipules narrowly long-acuminate: 

 flowers monoecious, in dense clusters, pubescent, the male 4-androus ; 

 fruiting perianth lanceolate, greenish, narrowly winged laterally 

 above, narrowly 5-toothed at and below the summit. Barranca, in 

 shade. (UG.) 



PouzoLziA NiVEA. Closely resembling the last, but the smaller 

 leaves (1 to 1^- inches long) white beneath with a dense fine tomen- 

 tum, more ovate and less acutely acuminate ; stipules acute to acumi- 

 nate: fruiting perianth narrowly winged laterally and upon the back, 

 3-o-toothed at the summit. Same locality. (117.) 



Salix taxifolia, HBK. Barranca. (85.) 



Taxodium mdcronatum. Ten. Barranca. (130.) — " Sabino." 

 A straight tree, 50 feet high and 2 to 4 feet in diameter; no knees 

 observed. 



PiNus oocarpa, Schiede. Rio Blanco. (15.) — Only compara- 

 tively young trees were seen, 25 feet high and a foot in diameter. 

 The wood is of little value even for fuel. 



MiCROSTYLis OCREATA. Stem a span high, angular, with a loose 



