1955] 



PLANTS COLLECTED IN ECUADOR 



153 



venulose by transmitted light, drying thin, translucent; petiole scarcely 5 mm 

 long, sparsely villous, vaginate at the base; spikes 2-3 mm thick x 1-1.5 cm 

 long; peduncle slender, glabrous; bracts triangular- sub pelt ate, marginally fringed; 

 fruit globose, gray-scurfy; stigmas linear, sessile. 



SANTIAGO-ZAMORA ("Oriente"): above Rio Upano, near junction with Paute, near 

 Mendez, 625-750 m, Nov 13, 1944, E-968 (TYPE). 



The sprawling growth habit of the small plants, leaf shape, short petioles, 

 spikes shorter than the peduncles, etc. are distinctive characters of this species. 

 It most closely resembles P. dichroostachyum, from which it differs in several 

 characters. 



Piper ottoniaefolium CDC. var. latifolium Trel. & Yun. Pip. North. S. Am. 87. 

 1950. 



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

 cordillera near the village of Bucay, 300-375 m, June 8-15, 1945, E-3767, E-3828. 



Piper leoticellosum CDC. Jour. Bot. 4: 167. 1866. 



CHIMBORAZO: canon of the Rio Chanchan (open deforested slope with small patches 

 of scrub in the draws, directly above the village of Huigra), 1500-2100 m, May 29— 31, 

 1945, E-3525. 



PICHINCHA (western slope of the cordillera): along the road from Quito to Sta. 

 Domingo de los Colorados, 1600 m, Jan 15, 1945, E-1740, 



Piper barbatum H. B.K. Nov. Gen. & Sp, 1: 55. 1815. 



AZUAY: along the Rio Matadero, west of Cuenca, 2500-2700 m, March 3, 1945, 

 E-1897; vicinity of Cuenca, 2460-2670 m, April 16, 1945, Prieto (Camp E-2712). 



Piper bogotense CDC Jour. Bot. 4: 214. 1866. 



AZUAY: the eastern cordillera, 1-8 km north of the village of Sevilla de Oro, 2400- 

 2700 m, July 27-Aug 12, 1945, E-4519. 



Piper marsupiatum Trel. & Yun. Pip. North. S. Am. 105. /. 78. 1950. 



SANTIAGO-ZAMORA ("Oriente"): Cordillera Cutucu, ca 2° 40' S, 78° W, junction of 

 Ri'os Itzintza and Chupiasa, 1050 m, Nov 17-Dec 5, 1944, E-1404. 



Piper lunulibracteatum CDC var. villirameum Yuncker in Trel. & Yun. Pip. 

 North. S. Am. 106. 1950. 



AZUAY: the eastern cordillera, 1—8 km north of the village of Sevilla de Oro, 2400- 

 2700, July 27-Aug 12, 1945, E-4476; Aug 12, 1945, E-4657. 



These specimens agree reasonably well with the type of this variety though 

 differing somewhat in size, degree of pubescence, etc. 



Piper product ispicum Yuncker, sp. nov. 



Arbor; foliis elliptico-ovatis vel rhombico-ellipticis, apice obtuse acutis, 

 basi oblique haud profunde cordatis, supra rugoso-bullatis glabris, subtus la- 

 cunosis conferte brunneo-villosis a tertio supero deorsum pinnatim venosis; 

 petiolo ad laminam vaginato-alato; drupa subglobosa; stigmatibus sessilibus. 



Tree, 5 m tall; upper internodes 5-10 cm or more long, sparingly warty, 

 densely brown-pubescent; leaves elliptic-ovate or rhombic-elliptic, the apex 

 bluntly acute, the base obliquely rounded, shallowly cordate with broad, open 

 sinus, the upper surface rugose-bullate, glabrous, lacunose and densely brown- 

 villous beneath, 16-18 cm wide x 24-30 cm long, pinnately nerved below the 

 upper third, the nerves salient, mostly 6-8 on each side, with intermediates and 

 cross-connecting-anastomosing nervules, drying firm, opaque; petiole 4-6 cm 

 long, matted brown-pubescent, vaginate-winged to the blade; spikes 12 mm thick x 

 50 cm long, pendent when mature; peduncle 4 cm long, matted brown-pubescent; 



