168 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 2 



Peperomia syringifplia C. DC. Bull. Herb. Boiss. 6: 514. 1898. 



SANTIAGO-ZAMOR A ("Oriente"): Cordillera Cutucu, ca.2° 40' S, 78° W, western 

 side of Cutucu, 870-900 m, Nov 17-Dec 5, 1944, E-1079. 



Peperomia distachya (L.) A. Dietr. Sp. PI. 1: 156. 1831. 



SANTIAGO-ZAMOR A ("Oriente"): Cordillera Cutucu, ca 2° 40' S, 78° W, on banks 

 of Rio Itzintza, 1050 m, Nov 17-Dec 5, 1944, E-1212. 



Pcperomia ovato-lanceolata Tr el. & Yun. Pip. North. S. Am. 701. /. 623. 1950. 



SANTIAGO-ZAMOR A ("Oriente"): Cordillera Cutucu, ca 2° 40* S, 78° W, junction 

 of Rios Itzintza and Chupiasa, 1050 m, Nov 17-Dec 5, 1944, E-1405. 



This specimen differs in being smaller and more erect, and in having smaller, 

 less pointed leaves. It may represent a new variety. 



C — Fruit Stipitate 



Pepcromia hispidula (Sw.) A. Dietr. Sp. PI. 1: 165. 1831. 



AZUAY: the eastern cordillera, 1-8 km north of the village of Sevilla de Oro, in 

 seepage, 2400-2700 m,July 27-Au^ 12 & 17, 1945, E-4474. 



CHIMBORAZO: canon of the Rio Chanchan, about 5 km north of Huigra (moist forested 

 valleys in the afternoon fog-belt), 1500-1650 m, May 19-28, 1945, E-3252. 



Peperomia tuberculata Yuncker, sp. nov. 



Herba repens delicata; foliis alternis rotund ato-reniformibus, apice rotundatis, 

 basi cordatis, utrinque dissite hispidis vel subglabris, palmatim 7-9-nerviis; 

 ovario fusiformi, substyloso; stigmate apicali. 



A delicate, pellucid, trailing herb; stems scarcely 1 mm thick when dry, 

 glabrous or sparsely hispid at the nodes, rooting at the nodes, the roots filiform, 

 frequently with smooth, fusiform tubers up to 5 mm long; internodes elongate; 

 leaves alternate, round-reniform, the apex rounded, the base cordate, 8-15 mm 

 wide, loosely hispid on both sides with flaccid hairs or subglabrous, palmately 

 7-9-nerved, the nerves branching upward, joined with a delicate submarginal 

 nervule, drying very thin and transparent; petiole slender, variable in length, 

 glabrous or sparsely hairy; spikes (?) leaf-opposed, 1-2 cm or (?) more long, 

 loosely flowered; peduncle glabrous; bracts small, round, peltate; ovary fusiform, 

 tapering to a style-like apex, stipitate (?); stigma apical; fruit not matured. 



CAflAR: dry chaparral scrub and paramo, with occasional moist valleys, near El 

 Tambo (ca 69 km by RR south of Sibambe), 2850-3000 m, Apr 22, 1945, Giler {Camp 

 E-2802) (TYPE). 



This is a very delicate species apparently closely related to P. hispidula 

 from which it differs in the more trailing habit of growth and smaller, reinform- 

 cordate leaves. The only spike present is immature but it very closely resembles 

 those of P. hispidula at the same stage of maturity. It is also reminiscent of 

 Verhuellia, but there is no evidence of more than one style or stigma. 



The root tubers, while not unique in this species, are more obvious than 

 is usual. 



It differs from P. perhispidula of Peru in its more glabrous, prostrate stems, 

 its cordate, 7-9-nerved leaves, and its longer petioles. 



Peperomia mandonii CDC. in DC. Prodr. 16(1): 395. 1869. 



CHIMBORAZO: canon of the Rio Chanchan near Huigra (mostly scrub-chaparral, with 

 a few seepages and small swamps along the river), 1200-1350 m, May 7-14, 1945, E-3034; 

 about 5 km north of Huigra (moist forested valleys in the afternoon fog-belt, 1500-1750 

 m, May 19-28, 1945, E-3286. 



Peperomia emarginella (Sw.) CDC. in DC Prodr. 16(1): 437. 1869 



Junction of GUAYAS, CANAR, CHIMBORAZO & BOLIVAR: foothills of the western 

 cordillera near the village of Bucay, 300-375 m, June 8-15, 1945, E-3843. 



