Australian Plants. 19 
Allied to Solanum dianthrophorum (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 clothed 
with a very thin toment; peduncles 3-5-flowered, generally 
surpassing the length of the petiole; calx much shorter than 
the coralla, 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; 
pedundes 2-or many-flowered, short; calyx half as long as 
the corralla, with deltoid acute segments; anthers yellow, 
excelled in length by the style. 
This series 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 Candolle’s prodromus, I beg to add yet 
the diagnosis ofan unknown South Australian species, having 
also given since an account of three others in Prof. Schlech- 
tendal’s Linnaea (vol. xxv. p. 432-434). 
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 
