MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



pressed-pubescent nerves pale beneath; i)etiole 5 nun. long, 

 scarcely Avinged, crisp-pubescent ; spil^es opposite the leaves, as 

 yet young and small (2X30 mm.), submucronate ; peduncle 

 scarcely 5 mm. long, velvety or crisp-pubescent; l)racts lunulate- 

 subpeltate with amjjle pale margin; flowers sessile, perfect. 



Pampas near Lake Rogagua, at 1,000 feet, H. H. Rushy, 1921 

 {no. 1687). 



Peperomia efimbriata Trelease 



A fleshy repent-ascending herb; stem slender (1 mm.), dry- 

 ing quadrangular, sparsely hairy below, glabrous above ; leaves 

 commonly 3 or 4 at a node, ovate-elliptic or the lowermost orbic- 

 ular, rounded at both ends or emarginulate, small (5 X 5-7 X 9 

 mm.), opaque, glossy, at most very obscurely 3-nerved, im- 

 pressed-punctulate, glabrous or the lower sparsely hairy be- 

 neath; petiole 1 nun. long, glabrous; spikes terminal, small (1 X 

 20 nmi.), rather loosely flowered below ; peduncle scarcely 10 mm. 

 long, clavate, glabrous ; bracts round-peltate. 



Pongo de Quime, at 11,500 feet, 0. E. White {no. 164). Type 

 specimen in Trelease herbarium. 



Peperomia rurrenabaqueana Trelease 



A moderate-sized somewhat forking zig-zag herb, glabrous 

 exce])t for the lower leaf-surface ; leaves alternate, lance-elliptic, 

 obliquely narrow-acuminate, rounded at base, moderately large 

 (2.5-3 X 5.5-8 cm.), drying dull and yellowish beneath, obscurely 

 pinnately nerved from below the middle, the branches of the mid- 

 rib 3 X 2, glabrous above, conspicuously but sparsely long-hairy 

 IxMicath ; petiole rather short (scarcely 10 nun.) ; spikes terminal 

 a]id axillary, long and slender (2X 150 nun.), closely flowered; 

 peduncle short (10 mm.) ; bracts round-peltate; lierries oblong, 

 subtruncately scutnlate; stigma oblique. 



Rurrenabaque, at 1,000 feet, H. H. Rushij {no. 794). Type 

 specimen in Trelease herbarium. 



Peperomia rhombifolia Trelease 



A moderately small glabrous herb; stem rather slender (2-3 

 mm.), 4-angled near tlie nodes; leaves alternate or opposite, 

 lanceolate to broadly rhombic, sharply rather long-acuminate, 

 subacute at base, moderate (1.5-3X5-6 cm.), 5- or 7-nei-ved ; 

 petiole about 5 mm. long, subdecurrent ; spikes terminal and 



