767). 



RusDv: South American Plants 191 



■ 



Junction of Rivers Benl and Madre de Dios, Aucr,^ i8S6 (no. 



Species very near S. torvuin L. 



T 



Solanum Rusbvi 



sp. nov. 



Strongly ferruginous: densely harsh-stellate, the upper leaf- 

 surfaces less so, the fruit becoming glabrous : branchlets, petioles 

 and peduncles densely prickly with long, slender, weak, rusty-red 

 prickles, a few continued upon the principal veins on both surfaces : 

 petioles 3 or4 cm. long, very stout: blades 1-3 dm. long, .5-1.5 dm. 

 broad, ovate, the rounded or sub-cordate base very inacquilateral, 

 very short-pointed and acutish at the apex, very coarsely sinuate^ 

 thick, the venation sub-immersed above, prominent underneath ; 

 stout, angled, peduncle, and at length its similar branches,' 

 erect ; branchlets numerous and cymes dense : pedicels stout^ 

 .5-1 cm. long: calyx-tube 4 mm. long, 6 mm. broad, ' the lobes 

 3 mm. long, nearly as broad, triangular-ovate, acute, the sinuses 

 broad and rounded : corolla-bud 7 mm. long, 5 mm. broad, ovoid, 

 the apex rounded : corolla-tube very short, the lobes 8 mm. Iong| 

 3.5 mm. broad, ovate : anthers (drying blackish) 5 mm. long, lin- 

 ear, nearly straight, the pores looking upward and a little inward: 

 stigma but little exceeding the anthers : fruit purple-black, globose, 

 more than i cm. in diameter. A stout shrub. 



Unduavi, looooft., Oct., 1885 (no. 799). The same as Bang's 

 no. 1 88 1, and {fide Britton) Mandon's no. 421. 



Solanum rayrianthum Britton, sp. nov. 



Densely and shortly stellate-tomentose and gray, except the 

 upper leaf-surfaces, which are dark-green and shortly stellate-hairy, 

 and the fruit which is glabrous and shining : branches and petioles 

 sparsely prickly, the prickles about i mm. long, stout, straight, 

 yellow : branches somewhat woody, elongated, slender,' flexuous| 

 terete : petioles 1.5-3 cm. long, stoutish : blades 5-10' cm. long' 

 2-5 cm. broad, ovate, very inacquilateral at the base, somewhat 

 acuminate and acutish at the apex, entire, thin : cymes short-pcdun- 

 cled, twice or thrice bifurcating, the branches at length 6-7 cm. 

 long, slender, sccund, loosely flowered, the pedicels horizontal or 

 reflexed, in fruit 7-8 mm. long, little thickened upward : flowering 

 calyx campanulate, 4 mm. long, the lobes 3 mm. long, ovate^ 

 acute, in fruit a little larger, mostly closely clasping the fruit ': 

 corolla-bud about 6 mm. long, 2.5 mm. broad, ovoid, the apex 

 blunt : corolla (apparently violet) tube very short, the lanceolate 

 lobes about 8 mm. long : anthers yellow, 5 mm. long, nearly 

 straight, lance-linear, the pores looking inward, upward and 



