2955] 



PLANTS COLLECTED IN ECUADOR 



157 



Piper verruculaefolium Trel. Field Mus. Publ. Bot. 13: 250. 1936. 



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

 side of Cutucu, 870-900 m, Nov 17-Dec 5, 1944, £-2 075. 



Piper prietoi Yuncker, sp. nov. 



Frutex; foliis lanceolato-ellipticis, apice acute acuminatis, basi inaequilater- 

 alibus, obtusis vel ad petiolum abrupte acutis, supra plus minusve scabridis, 

 glabris, subtus ad venas adpresse pubescentibus, a parte infera pinnatim; 

 spicis curvis; drupa obovoidea apice truncata vel depressa puberula; stigmatibus 

 sessilibus. 



Nodose shrub, 4 ra tall; upper internodes slender, 4-8 cm long, granular, 

 retrorsely hispid, glabrescent; leaves lance-elliptic, 3.5-6 cm wide x 11-14 cm 

 long, the apex sharp-acuminate, the base inequilateral, obtuse or abruptly acutish 

 at the petiole, one side rounded and about 2 mm longer, somewhat scabrid, 

 glandular-dotted, glabrous above and dark green when growing, almost white be- 

 neath with the nerves appressed-pubescent, pinnately nerved from the lower half, 

 the nerves 4 on each side with cross-connecting-anastomosing nervules, drying 

 papery, subopaque; petiole 5 plus 2 mm long or up to 10 mm on the lower leaves, 

 retrorsely hispid, vaginate near the base; spikes 3 mm thick x 8 cm long, curved, 

 apiculate with a hispidulous tip up to 5 mm long; peduncle 2-3.5 cm long, slen- 

 der, hispidulous, glabrescent; bracts triangular-subpeltate, short-fringed; fruit 

 obovoid, the apex truncate or depressed, puberulent; stigmas slender, sessile. 



SANTIAGO-ZAMORA ("Oriente"): eastern slopes of the cordillera, valley of the Rio 

 Negro, near junction of Rios Pailas and Negro, on the trail to Mendez, 1800—2250 m, Aug 

 20-24, 1945, Francisco Prieto (Camp E-4909) (TYPE). 



This species appears to be near the P. hispidum complex. It differs in its 

 4-nerved leaves, curved, rather long- apiculate spikes, and long peduncles. 



Piper perstrigosum Yuncker, sp. nov. 



Frutex; foliis lanceolato-ellipticis, apice acute acuminatis, basi inaequilater- 

 alibus, supra strigosis plus minusve scabridis, subtus strigosis, a parte infera 

 pinnatim venosis; petiolo ad medium vaginato-alato; ovario ovoideo, substyloso. 



Shrub, 2 m tall, nodose, apparently twiggy; upper internodes mostly 2-4 cm 

 long, rather densely gray-strigose, the hairs closely appressed upward; leaves 

 deep green above with silvery sheen, very pale beneath when growing, lance- 

 elliptic, the apex sharp-acuminate, the base narrowed downward, inequilateral, 

 one side 2 mm shorter and usually acute, the longer side obtusish, 2-3 cm wide x 

 8-9 cm long, strigose and slightly scabrous above, strigose beneath, the margin 

 strongly so, pinnately nerved from the lower half, the nerves usually 5 on each 

 side, with cross-connecting nervules, drying rather firm, subopaque; petiole 3-5 

 plus 2 mm long, gray-strigose, vaginate below the middle; spikes 3 mm thick x 

 3-3.5 cm long; peduncle 5-8 mm long, moderately gray-strigose; bracts round- 

 triangular-subpeltate, yellow-fringed; ovary ovoid, tapering to a very short, stout, 

 style-like apex, glabrous; stigmas linear, recurved; fruit not mature. 



SANTIAGO-ZAMORA ("Oriente"): eastern slopes of the cordillera, valley of the Ri'o 

 Negro, near junction of the Rios Pailas and Negro, on the trail to Mendez, 1800-2250 m, 

 Aug 20-24, 1945, Prieto {Camp E-4922) (TYPE). 



This species bears some resemblance to P. zarumanum but differs in the 

 character of the indument, large leaves, shorter spikes, substylose ovaries, etc. 

 The gray-strigose type of indument is a characteristic feature. 



Piper aduncum L. Sp. PI. 29. 1753. 



CHIMBOR^ZO: 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-3054 t 

 E-3244. 



