40 Some hitherto unknown Australian Plants. 



otherwise like the two first. The lower molars have two 

 sharp-pointed ridges externally, and three ditto internally. 



It appeared to me that this bat is very likely the smallest 

 of its kind yet known in Australia, and indeed, perhaps, even 

 the smallest mammal yet anywhere discovered. I compared 

 it with Gould's " Scotophims picatus," of which he says : — 

 -" This pretty little bat, which is the smallest and one of the 

 most interesting of the true scotophili, inhabiting Australia, 

 &c. ;" and Captain Sturt, on the same subject, says — " This 

 diminutive little animal flew into my tent at the depot, at- 

 tracted by the light. ... •" but the specimen before you is 

 full half an inch shorter in the body, and two inches smaller 

 between the wing-ends. 



Should it be found that the specimen here in question is a 

 member of a yet undescribed species, I venture to propose for 

 it the name — Vespertilio pygmseus. 



Explanation of Plate : 



Fig. 1, 2, 3, natural size ; 4, magnified about double natural size ; 5, 

 6, 7, S, ditto four times ; 9, 10, ditto eight times. 



Melbourne, July 1S5S. 



Art. VIII. — Some hitherto unknoion Australian Plants. 

 Described by Dr. Ferdinand Mueller. 



[Read before the Institute IStb August, 1S5S.] 



Sterculiace^e. 



Methorium integrifolium. 



Clothed with starry velvet-hair ; leaves oval, almost entire, 

 short-stalked, beneath net-veined ; stipules subulate, 

 deciduous, shorter than the petioles ; cymes axillary, 

 sessile, few-flowered; teeth of the calyx acute, three 

 or four times shorter than its tube ; column of stamens 

 straight. 



On rocky declivities of the sandstone table-land of the 

 Upper Victoria River. 



Leaves l|-2 inches long, generally 1 inch broad, on both 

 pages of equal color. Cymes several times shorter than the 

 leaves. Calyx about J inch long, exceeding the Linear-subu- 



