776 NOTES FROM THE BOTANIC GARDENS, SYDNEY. 



PROTEACE^. 



Grevillea juniperina, E.Br., var. trinervata, var. nov, — 

 Leaves narrow-lanceolate, about 6 to 9 lines long, trinerved. 

 Flowers creamy-yellow without any tinge of red. 



Barber's Creek, N.S.W. (J. H. Maiden, October, 1898). 



R. Brown's O. juniperina and trinervis are very closely allied 

 as already observed by Bentham in the Flora Australiensis, and 

 the present specimens make it very doubtful whether the speciric 

 distinction can be upheld. In G. trinervis the leaves are very 

 variable, but the colour of the flowers as hitherto noted has been 

 uniformly red; in G. juniperina the colour of the flower varies, 

 but the leaves have hitherto been found uniformly linear-subulate. 



The Barber's Creek specimens have the flowers of G. juniperina 

 and the foliage of the short- and broad-leaved New England 

 forms of G. trinervis. 



EUPHORBIA.CE.E. 



Ricinocarpus Bowmanni, F.V.M., var. albus, var. nov. 



Flowers white; the males mostly solitary, only occasionally in 

 clusters of two or three. 



Bomera, New England (W. MacDonald, October, 1898). 



Mr. J. R. Garland informs us that he has seen a white flower- 

 ing form of this species in the Wagga Wagga district, but as 

 specimens are not available we are unable to state whether it is 

 identical with the Bomera plant. 



naiades;. 



Potamogeton ociireatus, Raoul. — Common throughout extra- 

 tropical Australia and hitherto known as P. obtusifolius, Mert., 

 and Koch, in all the colonies except South Australia (Prof. Tate 

 has already previously adopted the name P. ochreatus in his 

 Census of South Australian Plants). 



Herr Baagoe, of Naestved, Denmark, drew our attention to the 

 confusion of the two species, and we are indebted to him for the 

 following diagnosis of P. ochreatus, drawn up by him from New 



