PERUVIAN REGIONS. 



191 



Polygonum (No. 34) ; having something of the habit of P. aviculare. Suffruticose, 



branching, three to eight inches high ; ochrcfe entire ; the leaves broad. Frequent 



on rocks, in the environs of Obrajillo ; and also, at Baiios. 

 Quinchamalium (No. 3 ; compare No. I Chili) ; the leaves linear. In the lower portion 



of the region, along the ascent to Obrajillo. 

 Croton (No. 13). A shrub, two to three feet high; densely tomentose, and the fruit also 



tomentose ; leaves broad, subrotund. In the lower portion of the region, growing 



about a league from Obrajillo. 

 Euphorbia (No. 47); like E. peploides. Many-stemmed, with a large tuberous root; leaves 



obovate, entire. At the upper margin of the region, at Baiios. 

 Urtica (? No. 24). A shrub, four to six feet high ; leaves an inch to one and a half 



inches long; flowers axillary, glomerate. In the lower portion of the region, growing 



in a ravine two leagues from Obrajillo. 

 (No. 25) ; leaves half an inch in length, short-petioled, narrow-ovate, plicate, 



dentate. At the upper margin of the region at Baiios. 

 (No. 26) ; covered with stinging hairs ; leaves small and crowded, broad, plicate, 



dentate. Around Banos, at the upper margin of the region. 

 Peperomia scutellaefolia, (bis No. 28 Amancaes mountain in Lower Peru). In clefts of 



rocks, at the upper margin of the region at Banos. 

 inequalifolia, (bis No. 29 Amancaes mountain in Lower Peru). In clefts of 



rocks, in the lower portion of the region, along the ascent to Obrajillo. 

 umbilicnta, (No. 30). In clefts of rocks, at the upper margin of the region at 



Banos. 



. (No. 31) ; leaves simple, semicordate, as though typically cordate, but the two 



halves folded and soldered together by their upper surface. On rocks, in the lower 



portion of the region, along the ascent to Obrajillo. 

 Myrica (No. 9). Arborescent ; twenty feet high. In the lower portion of the region, 



growing in a ravine two leagues from Obrajillo. 

 Ephedra (compare No. 1 Patagonia, Chili, and the Chilian Andes). In the Canta Valley, 



from Obrajillo to the Paramera. 

 Gen. incert. (No. 1). A shrub; leaves alternate, evergreen, short-petioled, lanceolate, 



entire, and while young tomentose ; the flowers and fruit not seen. In the environs 



of Obrajillo. 



Habenaria? (No. 16) ; leaves broad-lanceolate, acute at each end ; long acute floral-bracts; 



the flowers not seen. In the upper portion of the region, along the ascent to Culuay. 

 Gen. Goodyera-like (No. 1). Six to eight inches high; leaves lanceolate ; the flower-stem 



separate from the leaves, full of scarious (or membranaceous) sheaths; flowers in a dense 



raceme. In the middle of the region around Obrajillo. 

 Amomum racemosum, (No. 4) ; see Ruiz & Pav. Leaves attenuate at base, lanceolate ; 



flower-stem separate from the leaves; flowers red, "with an orange tinge." In the 



lower portion of the region, growing about a league from Obrajillo. 

 Sisyrinchium (No. 17). Spathe much exceeding the leaves ; flower single, rose-colored. 



Frequent in the lower portion of the region, along the ascent to Obrajillo. 



Echinochloa crus-galli ? (compare our Atlantic States, and No. 1 California). In the 

 environs of Obrajillo. 



