New Species of South American PLiiNTs 137 



just below the whitish tip. Filaments very short, inserted into 

 the margin of the tube, the anthers ovoid, exserted. Style 

 about as long as the corolla-tube, thickened upward, the lobes 

 short, flattened. Fruit globose, 3 mm. broad, the pyrenes 2, 

 deeply 3-sulcate. Seed 3-grooved on the back, flat on the face 

 or with several irregular slight, crooked channels. 



"A tree to 20 feet, with white flowers in May and June, 

 Occasional in dry forest, 500 to 2,500 feet. Collected at Minca, 

 2,000 feet. May 31 and in fruit at Escalera de los Indios, August 

 2." (Herbert H. Smith. Colombia, No. 1826.) 



Mapourea latifolia. 



Lower surface of the young leaves sparsely and minutely 

 puberulent. Branchlets stout, terete. Stipules 6 to 8 mm. 

 long, very broad, ovate, deciduous. Petioles to 4 cm. long, 

 passing gradually into the narrow leaf-base. Blades i to 3 dm. 

 long, 6 to 12 cm. wide, ovate with both ends very abruptly 

 and shortly acuminate and acute, very thin, deep-green, ob- 

 scurely crenate, the venation not prominent, the secondaries 

 about 15 on a side, very widely spreading and little curved, not 

 connecting, the remaining venation obscure. Inflorescence 

 terminal, sessile, widely branched, the branches paniculate, 

 rather densely flowered, the bracts minute. Flowers very 

 shortly and stoutly pedicelled, the pedicels angled like the 

 oalyx-tube, which is campanulate, about i mm. long, the limb 

 of about the same length, 2.5 mm. broad, very minutely toothed. 

 Corolla-tube 3 mm. long and nearly as broad, cylindraceous, 

 densely pilose within, the 4 lobes of nearly equal length, lance- 

 olate, recurved, minutely homed on the back, near the summit. 

 Stamens exserted, the filaments filiform, inserted into the throat. 

 Style clavate, the stigmas flattened, oblong or ovate. 



"A tree to 20 feet, with white flowers and pedicels. In 

 damp forest, near stream. Cacagualita, 1,500 feet. May. 

 Also in alluvial forest, Don Diego, near the coast, May 17. 

 The one first-named is the type. (Herbert H. Smith, Colombia 

 No. 1805). No. 2405, from "mountain forest near Cacagualita, 

 2,500 feet, June 16, _" appears to be the same. 



Psychotria (Trichocephala) scabrifolia. 



Coarsely hirsute and somewhat ferruginous. Stems stout- 

 ish but weak, the younger portions densely hirsute, leafy to the 

 summit. Stipules obscured by the indumentum, lanceolate 

 and terminating in a rigid, pungent, strigose awn, some of them 

 nearly i cm. long. Petiole about 6 mm. long, very stout, the 

 blades 6 to 10 cm. long, 1.5 to 4 cm. broad, lanceolate with 

 acutish base and narrowly acuminate summit, entire, thick. 



