148 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[Vol. 9, No. 2 



Piper lacunosum H.B.K. var. glabricaule Trel. & Yun. Pip. North. S. Am. 21. 

 1950. 



AZUAY: the eastern Cordillera, 1-8 km north of the village of Se villa de Oro, 2400- 

 2700 m, July 27-Aug 12, 1945, E-4405, E-4658, E-5279. 



Piper pterocladum CDC. Candollea 1: 145. 1923. 



SANT1AGOZAMORA ("Oriente"): Cordillera Cutucu, ca 2° 40* S, 78° W, ridge as- 

 cending into central Cutucu, 1260 m, Nov 17-Dec 5, 1944, E-1112; 1410-1470 m, E-1161. 



These specimens show certain differences, mostly in size, from those previ- 

 ously known of this species, but it is believed that these differences may be due 

 to the stage of development or to environmental conditions. The collector reports 

 the stem as fluted and the spikes as pendent. The pubescence is very minute; 

 the leaves up to 15 cm wide x 31 cm long, with 8-12 nerves on each side; and 

 spikes 8-10 mm thick x 10-12 cm long with a stout peduncle about 1 cm long. 



Piper cutucuense Yuncker, sp. nov. 



Frutex; foliis late ellipticis, apice brevi-acuminatis, basi rotundatis truncatis 

 vel late cordatis, supra glabratis, venis subtus puberulis, a parte infera pinnatim 

 venosis; petiolo fere ad laminam vaginato; bracteis calceolato-apiculatis; ovario 

 ovoideo, stylo sat longo sub-subulato. 



Shrub 1.5-3 m tall; upper internodes slender, about 5—7 cm long, minutely 

 retrorse-hirtellous; leaves broadly elliptic, 11-14 cm wide x 17-22 cm long, the 

 apex short-acuminate, the base rounded, truncate or shallowly cordate, one side 

 2-5 mm shorter, abruptly acute at the petiole, glabrous and dark green above, 

 paler beneath with puberulent nerves, not ciliate, obscurely glandular-dotted, 

 pinnately nerved from the lower half, the nerves 5 or faintly 6 on each side, with 

 cross-connecting-anastomosing nervules, drying papery, translucent; petiole 

 2-2.5 cm long, vaginate to near the blade, densely retrorse-hirtellous; spikes 

 5-8 mm thick x 1-2.5 cm long, apiculate; peduncle scarcely 1 cm long, retrorse- 

 hirtellous; bracts calceolate-apiculate, densely pilose downward; ovary ovoid 

 with a rather long, sub-subulate style; stigmas ligulate; fruit not developed. 



SANTI AGO-Z AMOR A ("Oriente"): Cordillera Cutucu, ca 2° 40' S, 78° W, ridge as- 

 cending into central Cutucu, 1260 m, Nov 17-Dec 5, 1944, E-1402 (TYPE). 



Piper schultesii Yuncker in Trel. & Yun. Pip. North. S. Am. 34. /. 26. 1950. 



SANTI AGO-Z AMOR A ("Oriente"): Cordillera Cutucu, ca 2° 40' S, 78° W, ridge as- 

 cending into central Cutucu, 900-1500 m, Nov 17-Dec 5, 1944, Camp s. n. 



The type of this species was collected in the province of Vaupes, Colombia. 



Piper heterocarpum Trel. var. subglabricaule Yuncker, var. nov. 



Iflternodiis superis e modice ad dissite longe-villosis; petiolo 1 cm longo; 

 drupa apice depressa. 



Upper internodes slender, 3-5 cm long, glandular-dotted, moderately to 

 sparsely long-villous, the hairs up to 2 mm long; base of the blade inequilateral 

 with one side 5 mm shorter and subobtuse or acute, pinnately nerved from the 

 lower half, the nerves about 5 on each side, with numerous intermediates, the 

 uppermost pair extending to the apex and cross-connected with the midrib; petiole 

 about 10 plus 5 mm long; fruit obypramidal-subtrigonous with a depressed apex 

 and short, stout style. 



SANTIAGO-ZAMORA ("Oriente "): Cordillera Cutucu, ca 2° 40* S, 78° W, ridge just 

 south and west of Rio Itzintza, 1350-1650 m, Nov 17-Dec 5, 1944, E-1313 (TYPE). 



This variety differs from the Peruvian species in its scarcely villous gla- 

 brescent internodes, leaves with acute or obtusish base, numerous intermediate 



