62 Some hitherto unknown Australian Plants. 



times shorter than the lower one ; lateral lobes of the lower- 

 lip round-ovate, middle one round kidney-shaped, near the 

 faux with a white spot. Sterile stamens white, like those of 

 V. clausa without anthers ; their apex exserted, yellow and 

 bent outward into a very short lobe. Lamels of the stigma 

 equal. Capsule about 2 lines long. 



Vandellia plantaginea. 



(Sect. Bonnaya.) 



Leaves all radical, glabrous, narrow- or spathulate- or ovate- 

 lanceolate, slightly repand or entire; scape rather long, 

 furrowed, with prominent angles, bractless/ or about the 

 middle with a solitary pair of bracts; raceme short, 

 terminal dense, almost forming a spike, glandulous- 

 downy ; bracteoles longer than the pedicles ; the latter 

 shorter than the calyx; capsule ovate, acute, of the 

 length of the calyx, shorter than the style. 

 In moist meadows near Macadam Range. 

 The root short, thick, and fibrinous, possibly perennial. 

 Scape one foot or less high. Leaves \-2\ inches long, gene- 

 rally short-stalked. Raceme measuring \-2\ inches. Corolla 

 blue. Capsule about 2 lines long. 



This species is extremely rare, and the only flowering spe- 

 cimen which was found is deposited in Sir Wm. Hooker's 

 herbarium, at Kew. It may possibly not be a congener, in 

 the strictest sense of the two preceding ones. In the bota- 

 nical collections of the North Australian Expedition, I 

 referred all three to Bonnaya, combining at the occasion with 

 it the genus Ilysanthes. I proceed now a step further, and 

 unite these plants and all the species of Lindernia, Ilysanthes, 

 and Bonnaya to Vandellia, because on the same grounds as 

 those which led to the separation of the above genera, others 

 also of this order (for instance, Gratiola) ought then to be 

 divided. 



Mimulus debilis. 



Annual, glabrous ; stem slender, decumbent, quadrangular; 



leaves small, distant, lanceolate-linear, entire, somewhat 



scabrous, gradually pointed; pedicels thin-filiform, four 



or many times longer than the calyx; flowers yellow. 



In humid meadows and around swamps at Macadam Range, 



Providence Hill, and the M 'Arthur River. 



