MULFORD EXPLORATION OF THE AMAZON VALLEY 



245 



of the central crowded but distinct stamens, whicli are 2 mm. 

 long-, about OS) n\m. thick, and very slightly narrowed toward the 

 base, ])rismatic and sulcate and surmounted by a cushion-like 

 puberulent liglit-))rown appendage that is broader than the 

 anther. Another flower, mounted to show a lateral view, has 

 petals only 4 mm. long. 



A tree reaching nearly 100 feet in height, and with a trunk- 

 diameter of several feet. The fruit is locally known as "Lu- 

 cuma," and is highly prized by the natives. 



Kurrenabaque, 1,000 feet, November 19, 1921 {no. 1751). 



Porcelia ponderosa comb. nov. 



GiKiftcria ponderosa Rusby, Bull. N. Y. Bot. Gard. 6: 504. 

 1910. 



Guatteria cuspidata 



(Fruiting specimen.) Nearly glabrous. Branchlets slender, 

 flexuous, very leafy. Petioles about 5 mm. long, rather stout, 

 blackish, minutely puberulent. Blades to 12 cm. long and 4.r) cm. 

 broad, oblanceolate with obtusish base, the rounded summit very 

 abruptly contracted into a short point; membranaceous, pale- 

 green, the slender venation prominent on both sides, especially 

 beneath, finely and strongly anastomosing, the secondaries about 

 10 on each side, widely spreading, strongly upcurved at the ends 

 to loop together at some distance from the margin. Carpels few, 

 black, very shortly stipitate, aljout 1 cul long and half as wide, 

 ellipsoidal, very minutely puberulent. 



Collected at Lake Rogagua, 1,000 feet, H. H. Rushy, Novem- 

 ber 8, 1921 {no. 170G). 



Guatteria lucida 



(Fruiting specimen.) Glal)rous. Branches elongate, stout, 

 strongly ascending. Petioles 3 or 4 mm. long and nearly as 

 broad, black. Blades to 2 dm. long and 7 cm. broad, oblanceo- 

 late with obtusish base and an extremely abrupt short obtuse 

 point at the summit, entire, thin, shining on both sides, the very 

 slender venation but little prominent, strongly and finely anasto- 

 mosing, the secondaries about 13 or 14 on each side, strongly as- 

 cending and strongly connecting a short distance from the 

 margin. Flowers 2 or more developing from a black lateral 

 node. Fruiting pedicel 2 to 4 cm. long, upwardly thickened, the 

 torus depressed-globose, nearly 1 cm. broad, the stipes about 



