PERUVIAN REGIONS. 



155 



though not exclusively Peruvian ; being in common with, or extend- 

 ing into Chili, as already mentioned. 



The following plants were found growing in the Peruvian Desert- 

 region, between the sea at Callao, and the elevation of five thousand 

 feet on the Andes ; the Eastern or inland limit being well defined, 

 and about six miles beyond Yaso : 



Clematis (No. 14) ; like C. Virginiana. The leaflets cordate, mostly entire. In great 



profusion, mantling the canebrakes and other vegetable growth along the river-bed 



from Yanga to the mountain-region on the Andes.* 

 Argemone (Mexicana, bis No. 1 Brazil). The flowers yellow ; the capsule prickly. From 



Callao to Yanga; where it was seen growing on the Desert upland; though perhaps not 



really indigenous. 



Arabis ? (No. 15); leaves amplexicaul, sagittate, denticulate; sepals caducous, obtuse; 



pod long. On the mountain-ridge between Caballeros and Yanga. 

 Monnina pterocarpa, Ruiz. & Pav. ? (No. 2). Two to three feet high, with sparse branches 



and leaves; the leaves linear and short; the fruit winged. Growing on the Desert 



upland, around Lima and on the mountain-ridge between Caballeros and Yanga. 



(No. 3); leaves broad; fruit pubescent, winged. Below Yaso. 



(Malvastrum) Limense, (No. 1 ; nov. gen. of G-ray) ; Malva of authors. Annual ; leaves 



3-5-lobed, and the lobes serrate; flowers small, blue; the segments of the outer calyx 



linear. On the exsiccated portions of river-beds, at Lima and at Caballeros. 

 Gossypium (No. 4). A thick-stemmed shrub, or a small tree, fifteen feet high ; leaves 



five-lobed, pubescent beneath. A single stock, growing beyond Yanga; apparently 



indigenous. 



Gen. Malvac. (No. 1). Leaves broad; calyx naked, five-cleft; flowers small, purple; 

 stamens in a long column, anthers yellow ; carpels five. Frequent in the environs of 

 Lima. 



Anoda? (No. 1); but the flowers small, white. Leaves; carpels about ten. In the vici- 

 nity of Callao ; rare. 



Sida (No. 23; compare Brazil, &c.); near S. spinosa. Suffruticose, two feet high; leaves 

 cuneate at base, crenate. In the vicinity of Callao, and of Yanga. 



(No. 24). Sufi"ruticose ; a foot high; corolla rotate, the petals being inequilateral 



at the apex. Frequent on the exsiccated portions of the river-bed of the Rimac at 

 Lima. 



* In general, in the cultivated ground of Lower Peru, weeds did not appear to be very 

 troublesome, nor in much variety. 



Anona Cherimoya, (No. 4j; leaves round-ovate. This celebrated fruit abundantly culti- 

 vated, (and seen in perfection only in Peru). According to Mr. Matthews, the plant is 

 " native in ravines to the Northward." 



— (No. 5); the " guanabana." The fruit esteemed, and sold in the market. 



Brassica oleracea, (bis Polynesian Groups, Auckland Island, Australia, Oregon, the 

 United States, and No. 1 Europe). Cabbages for sale in the market ; (and the plant 

 also seen growing spontaneously, or naturalized). 



