308 NOTES FROM THE BOTANIC GARDENS, SYDNEY, No. 13, 



the form with a dark keel is also more common and more robust 

 in habit. 



The discovery of the two forms of A. villosa found growing 

 together in Narrabri is of interest in that it settles the doubt 

 about the colour of its flowers. The three New South Wales 

 species of Aotus, viz., A. villosa Sm., A. mollis Benth., and A, 

 lanigera A. Cunn., are closely allied, and pass so much into each 

 other that it is impossible to draw sharp lines of distinction 

 between all forms. Bentham draws a sharp distinction between 

 A. villosa and mollis on the one hand and A. lanigera on the 

 other, from the colour of the flowers. According to his Key to- 

 the Species of Aotus, the two former have yellow flowers with a 

 dark keel, and the latter has all yellow flowers; but we have so 

 often met with forms of Aotus with all yellow flowers, which we 

 could not reconcile with A. lanigera, that we attached little 

 systematic importance to the colour-character. The Narrabri 

 specimens definitely prove that the flowers of A. villosa vary in 

 colour from all yellow to yellow with a dark keel; and to this we 

 may add a third not uncommon form with yellow wings and keel, 

 but a dark zone in the standard. A. mollis seems to have always 

 a dark keel, and A. lanigera has always entirely yellow flowers. 



The three New South Wales species should not be kept up as 

 distinct species; in our opinion, they cannot be separated by a 

 single sharp character; it is all a matter of more or less recurved 

 margins of the leaves, or a more or less dense or loose tomentum, 

 or smaller or larger flowers, etc. We have in the Sydney Herba- 

 rium typical specimens of all the three species, and they look 

 certainly distinct enough; but the transition-forms are numerous 

 and some are so accurately intermediate between two species 

 that it seems a matter of caprice to place them with one or the 

 other species. 



PultenjEA Cambagei, n.sp. 



Torrington, Deepwater, Nova Anglica (in paludibus, R. H. 

 Cambage; September mensis mdccccvii). 



Frutex erectus, circiter duos pedes altus, parce ramosus. Rami 

 tenues, fere teretes, ramusculi pubescentes. Folia glabra, alterna,. 





