Plants Collected in Paraguay. Ill 



stout spines on the midrib beneath and the winged petiole. Stem 

 armed with strong, straight or hooked spines. Flowers not seen. 

 Berries as large as marbles, green, covered with a yellowish tomen- 

 tum. 



Solanum Pilcomayense, Morong, n. sp. 



A weak-stemmed, widely branching slirub, about 3 m. in height, supporting 

 itself by the grasses and bushes among which it grows. Stem with 3 or 4 

 sharp angles or ridges, on which are often minute upwardly curved teeth that 

 give a cutting edge to the ridge, otherwise smooth. Branches pubescent with 

 small white, appressed hairs, or nearly glabrous. Leaves alternate, ovate, 

 semi-cordate, entire or with a few small lobes, pubescent, especially below, 

 the largest I collected 12 cm. long by 4 cm. wide, on petioles ^2^ cm. long. 

 Flowers in small cymes, white or sometimes pale purple, not over ^ cm. high. 

 Calyx with 5 ovate lobes and scarcely ^ as long as the corolla. Corolla deeply 

 parted, the lobes ovate, obtuse. Anthers about 4 mm. long, the pores introrse, 

 oblique. Style capillary, included ; stigma capitate. Berries smooth, black, 

 a little larger than those of S. nigram. 



This plant was found more or less all along the banks of the 

 upper Pilcomayo, and even in the water of the great laguna where 

 our voyage terminated (898). January-May. 



Solanuni raEiiiilosiini, Sendt., 1. c, 45. 



Yilla Rica (458). January. = Balansa 2119. 



A handsome unarmed shrub 12-15 dm. high, the branches and 

 leaves hoary with stellate tomentum. Leaves green above, white 

 beneath, ovate-lanceolate, solitary or often geminate, one of them 

 smaller, 3-8 cm. long, 1-2J^ cm. wide; petioles about 5 mm. long. 

 Flowers white, numerous, in small axillary cymes. Berries small, 

 black. 



Solanuni sisymbriifoliiim, Lam., 111., no. 2386. 



La Plata, Arg. Republic (25); Asuncion (91); Gran Chaco(587). 



Solanum urlianum, Morong, n. sp. 



A shrub 1-3 m. in height, unarmed. Stem angular, with gray bark, smooth 

 below, the young shoots downy. Leaves entire, ovate-lanceolate, obtuse or 

 acute at the apex, cuneate at the base, more or less pubescent on both sides, 

 3-6 cm. long and 1^-2^ cm. broad. Petioles 1-2 cm. long, alate-margined 

 above, pubescent. Flowers in small clusters, somewhat racemose, occasion- 

 ally solitary, among the leaves at the top of the stem and branches. Pedicels 

 erect or drooping, 1-2^ cm. long. Calyx pubescent, less than ^ as long as the 

 corolla, with 5, often 10, subulate lobes longer than the tube, thickening and 

 Annals N. Y. Acad. Sci., VII, Feb. 1893.— 12 



