MULFORD EXPLORATION OF THE AMAZON VALLEY 



313 



the iiitoriiodos less than half the len<?th of their leaves. Petioles 

 5 to 7 luin. long, stout, margined. Blades to 1 dm. long and half 

 as wide, ovate with base very abruptly contracted into the 

 petiole, very abruptly and shortly acuminate and acute, entire, 

 thick, deep-green, the slender venation prominent beneath, the 

 secondaries about 6 or 8 on each side, strongly falcate-ascending, 

 connected by the tertiaries, the tiner venation finely anastomos- 

 ing. Panicles axilliary and terminal, shortly peduncled, the 

 flowers densely spicate on the branches, the racemes, in flower, 

 5 nun. Avide. Calyx-tube less than 1 mm. long, the mature bud 

 about as broad as the length of the tube and only half as long. 

 Open flower about 2 mm. broad. Sepals 4, broadly oval, con- 

 cave, tliickish, a little more than half the length of the petals, 

 which are obovate and lightly denticulate. Stamens 8, slightly 

 longer than the sepals. 



Along the Rio Ibon, 500 feet, 0. E. White, February 9, 1922 

 (no. 2374). 



Myrtaceae 

 Calycorectes macrocalyx 



Glabrous. Branchlets slender, more or less quadrangular. 

 Leaves divaricate, the petioles about 1 cm. long, stout, narrowly 

 channeled above. Blades to 12 cm. or more long, and nearly half 

 as broad, oval with obtuse or rounded base and a very short, 

 broad, obtuse acumination, tliickish, the margin revolute, pale- 

 green, the midrib channeled above, prominent beneath, the fili- 

 form secondaries about 12, with some smaller ones intervening, 

 widely sijreading, and looped together a little way from the 

 margin. Peduncles (always ?) supra-axillary, 1-flowered, oppo- 

 site, subtended by nodiform or gland-like small bracts, slender, 

 about 2 cm. long, more or less angled, slightly thickened up- 

 ward. Calyx 4-parted nearly to the base, the segments nearly 

 2 cm. long by 5 nun. wide, somewhat unguiculate, the unguis dark 

 or blackish, about half as wide as the limb, which is lance-ovate, 

 blunt, green and leaf-like, tliickish, very veiny, the base very 

 abruptly contracted into the unguis. Petals only about half as 

 long as the calyx and about equaling the numerous stamens. 

 Anthers whitish, with yellow connective, about as long as broad, 

 versatile. Disk broad, blackish, the thin margin recurved. 

 Style setaceous, the summit recurved. 



Along the Bopi River, 3,000 feet, H. H. Rushij, September 12, 

 1921 (no. 666). ''On a cliff of the river-bank, in partial shade. 

 Stamens white, turning yellow with age." 



