114 CARL SKOTTSBERO 



Piperaceae. 

 Peperomia Ruiz et Pavon. 



38. P. Berteroana Miq. — Johow, Estud. 121. 



Masatierra: Moist, shady woods, more numerous in altitudes above 300 m. 

 North slope of Co Damajuana, c. 500 m; V. Colonial, C. Central, c. 500 m; 

 Portezuelo de Villagra (JOHOW), on the rocks near the pass and in the woods 

 on both sides (fl. Dec. 1916, no. 38); Q. del Monte Maderugo, rocks in the 

 forest, 390 m; Q. Salsipuedes, Dicksonia-fovest, c. 650 m (fl. — fr. 8 /i2 16, no. 96); 

 Pto Ingles (JOHOW), central ridge, c. 380 m (fl.-fr. 20 /i 17, no. 321); Q. Juanango, 

 at the foot of the high waterfall ; mountain ridge west of Co Yunque, c. 500 m 

 (fl. 2i ji 17, no. 628); Q. Villagra, low hill near the camp, c. 200 m (f. hirsuta, 

 no. 261); Q. de la Choza, wet rock in the forest, c. 400 m. 



Masafuera: Q. de las Vacas (no. 394, also Johow); Q. Angosta, in the 



gorge by a waterfall; Q. del Varadero; Q. de la Loberfa. Specimens from 



this island, all found on rock ledges in the canyons, are small and have smaller, 

 less obovate, almost rhomboidal leaves. My material is sterile, and I do not know 

 if the differences are of systematic importance. 



Area of distribution: Endemic. 



39. P. margaritifera Bert, ex Hook. Icon. Plant. I, t. 91. — Johow, 

 Estud. 122. 



Masatierra: Bertero! Germain! — El Pangal, in the bottom of the 

 gorge c. 210 m, in wet soil on a rock wall, where water trickles down (fl. 1 ji IJ, 

 no. 220) ; Q. Juanango, at the foot of the high waterfall, wet soil between stones, 

 c. 225 m (fl. 9 ji 17, no. 615). 



Discovered by BERTERO »en las pendientes sombrias de los cerros mas 

 elevados* and found again by GERMAIN. It probably grows in the foggy region 

 and descends into some of the damp gorges. The specimens from Juanango 

 have pilose leaves, with long stiff hairs spread over the entire lower surface, 

 denser along the midrib; on the upper surface there are a few hairs scattered 

 along the nerves. The margin is lined with hairs except near the base. These 

 plants agree with the type as described and figured by HOOKER. The Pangal 

 specimens are larger with longer spikes and glabrous leaves, the margin often 

 pilose toward the tip. The leaves are conspicuously thinner. This I regard as 

 a form of extreme shade and moisture. 



Area of distribution: Endemic in Masatierra. 



40. P. Skottsbergii C. DC. in Skottsberg, Stud. 20. — Syn. P. marga- 

 ritifera, Johow ex p., Estud. 122. — Plate 10. 



Masafuera: in the canyon of Q. de las Casas, moist ledges, caves and 

 overhanging rocks, rare (fl. X1 /a 17, no. 477). Also collected byJoHOWandby 

 the writer in 1908; the only locality known. 



Area of distribution: Endemic in Masafuera. 



