PERUVIAN REGIONS. 185 



Encelia (bis No. 2 Lower Peru) ; long leaved. Extending into the lower portion of the 



region, nearly as far as Obrajillo. 

 Coreopsis odoratissima ? (No. 5) ; compare Feuillee, 50. Having the habit of C. tricho- 



sperraa ; sufFruticose, one to two feet high, with many branches ; leaves opposite, much 



dissected ; akenium with two soft awns. In the upper portion of the region, along the 



ascent to Culuay. 



Bidens ? (No. 16) ; or compare Coreopsis. Entirely pilosiuscul. ; leaves deeply three- 

 parted, as if trifoliolate, incisely dentate ; calyx pilose. In the upper portion of the 

 region, along the ascent to Culuay. 



? (No. 17); decumbent, slightly hairy; leaves dissected, multifid. In the envi- 

 rons of Obrajillo. 



(No. 18). Annual, a foot high, the stem simple; leaves dissected; a single ter- 

 minal flower ; akenium long. Frequent in the lower portion of the region, along the 

 ascent to Obrajillo. 



(No. 19). Annual, six to eight inches high; stem simple; leaves smooth, trifid, 



incised; usually a single flower; akenium rather long, the awns short. Frequent in the 

 environs of Obrajillo. 



(Oyed^ea bupthalmoides. No. 1); gen. Helianthoid. Annual, three to nine inches high, 

 strigose; leaves broad-lanceolate, entirish; akenium with two long chaS's, and four inter- 

 mediate broad ones. Frequent in the environs of Obrajillo. 



(Simsia?, No. 1); gen. Verbesinoid ?. Leaves repand, lyrate, amplexicaul or perfoliate, 

 the under surface lanate ; flowers large, yellow ; calyx-scales 2-3-serial. In the envi- 

 rons of Obrajillo. 



Helianthoid (No. 1). Leaves opposite, petioled, ovate, serrate; large yellow flowers. Fre- 

 quent in the environs of Obrajillo. 



Gen. Helianthoid? (No. 1). Leaves opposite, petioled, broad-lanceolate, serrate, closely- 

 pubescent; the flowers not seen. Environs of Obrajillo. 



Gen. Rudbeckioid (No. 1); compare Siegesbeckia flosculosa. Leaves opposite, broad- 

 ovate, serrate; receptacle conical, chaffy; akenia devoid of pappus. (At the upper 

 margin of the region in the Canta Valley.) 



(Verbesina, No. 2); Parthenioid, having something of the habit of Elephantopus. 

 Leaves decun'ent, alternate, attenuate, serrate; calyx-scales biserial; floret-rays short, 

 cream-colored; akenium biaristate, as in Bidens. In the environs of Obrajillo. 



Spilanthes (compare No. 3 Lower Peru). Leaves long-petioled; flowers yellow. In wet 

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



(No. 4j. A foot high; leaves broad at base, short-petioled ; flowers large, white. 



In the lower portion of the region, along the ascent to Obrajillo. 



Galiiisoga? (No. 3). Annual; a foot high; leaves petioled, broad-ovate, hairy; flowers 

 sometimes purple; calyx-scales biserial. Frequent in the environs of Obrajillo. 



(Gen. incert.. No. 1). Three to six inches high; leaves opposite, pinnatisect, the seg- 



Solanum ; like S. nigrum ; (compare Polynesian Groups to New Zealand and Upper Egypt, 

 and No. 28 California, Chili, and Lower Peru). In the environs of Obrajillo. 



• tuberosum, (No. 56 ; bis Lower Peru) ; the potatoe. (Of Aboriginal cultivation ; 



and at the present day) abundantly planted in the upper portion of the region, as flu- 

 as the Paramera. 



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