16 New Species of South American Plants 



the tube. Stamens 3, their tube crateriform, 2 mm. broad. 

 Anthers as broad as long. Fruit (mature ?) 4 mm. long and 

 nearly as broad, obovoid, slightly compressed, the base con- 

 stricted, the summit bearing a black tubercle about one-fourth 

 the width of the fruit and minutely muricate. 



"Stems becoming diffuse, to 2 feet long. Local in forest 

 and clearings, in damp ground below 1000 feet. Collected near 

 Bonda, 150 feet, October 15." (Herbert H. Smith, Colombia, 

 No. 569.) 



Berberis ovalifolia. 



■ Glabrous, the branches very stout, terete, the branchlets- 

 extremely short and stout, with densely crowded leaves. Spines 

 pinately branched, stout, pungent, terete, the basal branches 

 about as long as the central spine, some of them bearing a pair 

 of rudimentary branches. Stipules densely imbricated upon 

 the branchlets, blackish, about 4 mm. long and broader, ovate, 

 thick and rigid, keeled, terminating in a small acute niucro.. 

 Petioles about i cm. long, strongly channelled above, dilated, 

 at the base. Blades 3 to 6 cm. long, 2 to 3 cm. broad, oval with 

 the base abruptly and slightly produced and the summit rounded^ 

 thick and coriaceous, densely dentate with short, salient pungent 

 teeth and rounded sinuses, somewhat glaucous underneath 

 when young. Venation, including the secondaries, finely and. 

 very strongly anastomosing, very prominent on both surfaces. 

 Racemes long and slenderly peduncled, wholly or their upper 

 portions drooping, the bracts about 6 mm. long, falcate, alter- 

 nate. Pedicels slender, about 2 cm. long, nerved, especially at 

 the enlarged summit. Outer sepals successively shorter, more 

 or less purple, some of the petals nearly i cm. long, broadly 

 oval with rounded summit, the basal glands large and extended 

 into a pair of lateral nerves. Stamens shorter than the petals, 

 the broad anther shorter than the stout filament, which is en- 

 larged at the base, the terminal appendage of the connective 

 truncate, twice as broad as its length. Ovary on a short thick 

 stipe, oval, the stigma discoid, concave, more than half as, 

 wide as the ovary. 



"A shrub, i]4 meters high, at Unduavi, North Yungas, 330a 

 M., November, 1910. (Buchtien, No. 2844.) 



Berberis densifolia. 



Glabrous, the branches stout, terete, the branchlets short, 

 very thick and stout, and very leafy, the thorns few and small 

 in my specimen. Stipules densely imbricated on the branch- 

 lets, blackish, broadly ovate, about 3 mm. long, exclusive of the 

 terminal, mostly recurved seta which is nearly as long as the 

 body, rigid, the strong midrib more or less 3-nerved. Leaves. 



