Australian Plants, 



19 



Allied to Solanum dianthophorum (Dunal Sol. 183) and 

 to an undescribed species discovered in Central Australia by 

 Capt, Sturt, of which I subjoin the definition : 



37. Solanum Sturtianum, 

 Stem upright, fruticose, scantily armed with short acicular 

 prickles ; leaves on somewhat long petioles, lanceolate-oblong, 

 blunt, entire, unarmed, above glabrescent, beneath cloathed 

 with a very thin toment ; peduncles 3-5-flowered, generally 

 surpassing the length of the petiole ; calyx much shorter than 

 the corolla, with triangular, acute teeths; anthers yellow, 

 attenuate. 



Another species brought from the interior of this island- 

 continent by the same intrepid traveller, might be characterized 

 as follows, — 



38. Solanum oligacanthum. 



Stem upright, fruticose; branches beset with distantly 

 scattered setaceo-subulate prickles ; leaves small, cordate, 

 obtuse, entire, on both sides as well as the branches covered 

 with a very thin grey toment, hardly armed, short-stalked j 

 pedujides 2-or many-flowered, short ; calyx half as long as 

 the corolla, with deltoid acute segments; anthers yellow, 

 excelled in length by the style. 



This species approaches to Solanum orbiculare (Dunal 

 syn. 27), from which it differs chiefly in its not shining 

 toment, and its exact heartshaped somewhat larger leaves. 



To complete my additions to the elaborate description of 

 more than 900 Solanum species, published by Prof. Dunal 

 in the 13 vol. of CandoUe^s prodromus, I beg to add yet 

 the diagnosis of an unknown South Australian species, having 

 also given since an account of three others in Prof. Schlech- 

 tendal's Linnaea (vol. xxv. p. 433-434). 



39. Solanum simile. 



Unarmed, smooth ; stem upright, suffruticose ; leaves 

 narrow-lanceolate, elongate, entire or lobed at the base, thin- 

 venose; corymbs lateral, few-flowered, simple or divided; 

 segments of the half five-parted calyx rounded, apiculate; 

 berries globose, nodding. 



On less fertile plains on the Murray and Angas river, on 

 Spencer^s and St. Vincent gulfs, and in Kangaroo Island. 



It is distinct from Solanum laciniatum in its constantly 



