186 



DISTRIBUTION OF PLANTS. 



merits incised; flowers inconspicuous; calyx-scales about six, uniserial ; akenia resem- 

 bling the carpels of Ranunculus, acute on each margin ; pappus none?. In the environs 

 of Obrajillo. 



Gen. Compos.? (No. 1). Entirely tomentose; leaves linear-lanceolate; flowers Gom- 



phrena-like, the calyx-scales scarious and triserial. Locality not recollected. 

 Lobelia (bis No. 54 lower down). Perhaps belonging properly to the mountain-region. 

 (No. 55); agreeing in habit with the last; the flowers .showy, orange-colored. 



Frequent along the river-bank in the lower portion of the region. No specimens. 

 (Gonolobus glandulosus ?, No. 2) ; Cynanchoid. A climbing vine ; leaves smooth, heart- 

 shaped; cymes trichotomous ; flowers greenish-white. In the lower portion of the 



region, along the ascent to Obrajillo. 

 (Fischeria Peruviana?, No. 1); Gonoloboid. A climbing vine; leaves tomentose, petioled, 



cordate; five linear calyx-segments; corolla large, in other respects as in Asclepias. 



In the environs of Obrajillo. 

 (Delostoma dentatum?. No. 1 ; gen.) Bignoniac. Arborescent, five to twenty feet high^ 



ornamental ; leaves simple, obovate, serrate ; large purple flowers, an inch and a half 



long; the calyx 2-3— fid, with a dorsal prominence. In the lower portion of the region, 



along the ascent to Obrajillo. 

 Aldea pinnata, Ruiz & Pav. (bis No. 2 Chili, the Chilian Andes, and Yaso in Lower 



Peru). Growing throughout the region to its upper margin. 

 (Pharbitis?, No. 5 ; gen.) Convolv. Entirely covered with long pubescence; leaves 



petioled, cordate ; calyx-segments long, acuminate. In the environs of Obrajillo. 

 (Jaquemontia ? No. 4; gen.) Convolv. Smooth; leaves cordate or hastate at base; 



calyx-segments smooth, obtuse. In the lower portion of the region, along the ascent 



to Obrajillo. 



Dichondra (No. 4 ; compare Lower Chili). Leaves large; pedunc. short. Along the 



upper margin of the region, at Banos. 

 (No. 5); lanate; the leaves broad, reniform. In the lower portion of the region, 



along the ascent to Obrajillo. 

 Cuscuta (No. 7). In the environs of Obrajillo. 



Varronia ? (bis No. 3 Lower Peru). Observed only at the commencement, or lower mar- 

 gin of the region. 



Heliotropium Peruvianum, (compare No. 10 Amancaes mountain in Lower Peru). One 

 to three feet high; the flowers blue. In the lower portion of the region, along the 

 ascent to Obrajillo. 



(No. 14); smooth, white-flowered. In the lower portion of the region, along the 



ascent to Obrajillo. 



(Pectocarya ?) pilosa, (No. 2); Cynoglossum of Ruiz & Pav. Having the habit of Myosotis; 



annual; six to twelve inches high; the carpels crested. In the environs of Obrajillo. 

 Cestrum (compare No. 5 Lower Peru), but not auricul. ; the leaves broader, petiol., 



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



Escobedia (No. 1). An ornamental shrub ; leaves alternate, lanceolate, half an inch by 

 one-sixth, attenuate ; the calyx inferior, with five acute calyx-teeth ; the corolla tubu- 

 lar, two inches long, the segments spreading, obcordate ; four stamens counted. At 

 the upper margin of the region, planted around houses at Culuay and BaSos. 



