AUSTRAL-AMERICAN REGIONS. 



133 



of the region, growing in clefts of rocks, and in the shade of detached blocks or 

 boulders. 



Colletia ? (bis No. 3 lower down), and seeming properly to belong there. The spines 



opposite ; leaves pubescent, obtuse, entire. 

 Nov. gen. Legum. (No. 1). A low shrub, having in place of leaves only phyllodia, which 



are Mulinum-like and trifid at the apex, with two additional divisions embracing the 



stem; flowers large, yellow ; the calyx pubescent ; the pod six-seeded. 

 Astragalus? (No. 19). Upright, herbaceous, smooth ; having broad stipules; leaflets in 



twelve pairs, lanceolate-linear, pointed. 

 Gen. Legum. (No. 1). A low shrub, rigid and branchy, but not spinescent; leaflets in 



about four pairs, linear ; flowers and fruit not seen. Found by Mr. Brackenridge. 

 Ac£ena? (No. 5); the flowers not seen. Growing in the shade of detached blocks or 



boulders. 



? (No. 6); perhaps distinct; the leaves smaller, densely pinnate. In the upper 



portion of the region, growing in the shade of detached blocks or boulders. 

 Nov. gen. near Acaena (No. 1). A large plant; the fruit Xanthium-like. In dense beds 



in crevices of rocks ; rare. 

 Gen. Rosac. ? (No. 2) ; a congener of No. 1 Chili. A low shrub ; the leaves rigid, 



subulate, spinescent, perhaps real ochrefe, each sheathing a fascicle of true linear leaves; 



fruit quadrialate, crowned with the calyx, as in Scleranthus. Abundant. 

 Quillaia smegmadermos, (bis No. 1 lower down). 



Epilobium (No. 21) ; leaves tenderly herbaceous, broad; capsule long-pedicelled. Grow- 

 ing on the banks of rills. 



Loasa (No. 3) ; leaves ovate, acute at each end, dentate ; flowers white. Found by Mr. 

 Brackenridge. 



(No. 4) ; leaves much divided ; large white flowers. Growing in the shade of 



detached blocks or boulders. 



? (No. 5). Stemless; leaves pinnatisect ; flowers yellow, and also in size Ranun- 

 culus-like. In clefts of rocks along the upper margin of the region ; rare. 



Ribes (bis No. 13 lower down), and seeming properly to belong there. Softly pube- 

 scent. 



Escallonia (bis No. 4 lower down), and seeming properly to belong there. 



(bis No. 5 lower down), and seeming properly to belong there. 



Hydrocotyle (bis No. 20 lower down). 



Mulinum spinosum, (No. 2); much resembling No. 1 North Patagonia; compare also M. 



echinus of Dec. The leaves mostly trifid. Abundant. 

 Gen. Valerianae. (No. 1). Stems procumbent at base; suff'ruticose ?, hard, rigid; leaves 



entire. In the upper portion of the region, forming beds in the shade of detached 



blocks or boulders. 



Gen. incert. (No. 1). Leaves pinnatisect, Brassica-like, but opposite; the flowers not seen. 



Found by Mr. Brackenridge. 

 Mutisia inflexa, (bis No. 3 lower down). 



(Chuquiraga No. 2) ; Barnadesia of some writers. The flowers yellow. Abundant and 

 conspicuous; marking with great precision the commencement, or lower boundary of 

 the region. 



Pentaphorus ? (bis No. 1 lower down), but more rigid and stunted. 



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