] 06 New Species of South Ameeican Ptants 



Bourreria viridis. 



Young portions minutely scabrous, the branchlets weak and 

 slender, terete. Petioles about i cm. long, narrowly margined. 

 Blades 1.5 to 2 dm. long, 5 to 7 cm. broad, ovate with acute 

 base and abruptly short-acuminate and acute summit, entire, 

 thin, minutely scabrous, the venation_ strongly prominent 

 beneath, very slightly so above, the principal secondaries about 

 10 on each side, slender, falcate and strongly ascending, ob- 

 scurely anastomosing at the margin, the venation finely reticu- 

 late. Cymes slenderly peduncled, loose and open, the calyx 

 about 6 mm. long, campanulate, shortly lobed, the flowers not 

 developed. Fruiting calyx rotate at base of fruit, nearly i cm. 

 broad, the margin sinuate. Fruit 12 mm. long, two-thirds _ as 

 broad, ovoid, acute, obscurely costate, flattened on one side, 

 the wall very thick and bony. 



Lower Orinoco, Venezuela (Rusby and Squires, No. 259). 



Toumefortia macrostachya. 



Harshly yellowish-tomentose throughout. Arborescent, the 

 branchlets long, slender and flexuous, some of the leaves attain- 

 ing a length of 4 dm. and a breadth of 2 dm., the petiole about 

 a fifth of the entire length, very stout, channeled above, the 

 blades ovate with rounded or broadly and shallowly cordate 

 base and short-pointed and acute summit, entire or minutely 

 erose-dentate, thin, dark yellowish-green. Inflorescence two 

 or more times dichotomous, the branches 2 or 3 dm. long, 

 loosely spreading, slender, stoutly peduncled, loosely-flowered, 

 the flowers secund, about 6 mm. apart, sessile or nearly so, 

 becoming pedicelled in fruit. Calyx-tube hemispherical, 2 mm. 

 broad, the erect teeth about as long as the tube, subulate and 

 attenuate. Corolla thick and tough, nearly i cm. broad, the 

 tube slightly exceeding the calyx, stout, the middle portion 

 dilated, pilose and rugose within, the lobes sub-rotund, finely 

 nerved, reflexed. Anthers sessile at the middle of the tube, 

 nearly 3 mm. long, tapering regularly from the broad base to 

 the acute summit. Fruits alternating upon the rachis, strongly 

 recurved, the pedicels about 3 mm. long, stout, the fruits about 

 6 mm. long and not so broad, the calyx teeth about two- thirds 

 of their length. 



"A tree, to 12 feet. Rare in abandoned clearings. Sierra 

 del Libano, 6000 feet, January 21. Flowers white." (Herbert 

 H. Smith, Colombia, No. 1865.) 



Coldenia aggregata. 



Densely setose-hispid throughout. Stems woody, prostrate, 

 densely branching, 1.5 dm. or more long, the branches densely 

 fasciculate-leafy. Leaves 5 mm. long, of which the lower 2 



