110 Ewart and Rees : 



TjAsiosi'ERMrM RADiATL'M. Trevir. (Conipositae). 



Hitrhways in Tasmania, R. A. Black, April, 1912. 



A native of South Africa which has reached Tasmania either as a 

 garden escape or with imported seed. It is occasionally i^rown in 

 Botanic Gardens, hut is of no economic importance. 



Mercurialis annua, L. " Annual Dog's Mercury." (Euphorhiaceae). 



Coode Island, Victoria, J. R. Tovey, March 23rd, 1912. 



A native of Europe and Africa which may be classed as an exotic 

 not yet sufficiently established to be considered naturalised. The 

 plant contains a substance which turns the leaves, when drying, to the 

 colour of indigo blue, and also gives a bluish tinge to the milk of 

 cows eating it. 



Oleandra nbriipormis, Cav. (Filices). 



Recorded as new to Australia in Proc. Linnean Soc. N.S. Wales, 

 vol. xxxiv., p. 368. Specimens of this plant from the Sydney Botanic 

 Gardens did not agree with those in the National Herbarium, and 

 Dr. Christensen suggests that it mav be a subfjlabrous form of 0. 

 Cumingii, J. Srn., which is a native of China, India, Assam, Malay, 

 Luzon and Tahiti, and has the same shape of lamina. 



Baker says (Synopsis Filicum, p. 303), " Probably this {0. CumitKjii) 

 occurs in tropical Australia, as there are specimens among Leichhardt's 

 plants." 



Panicum Crus Galli, L. " Barnyard Grass." (Gramineae). 



North Australia, Dr. Gilruth, 1911. 



" Fairly common, though much scarcer than Mitchell Grass. Stock 

 eat it readily." 



Paspalum scrobicllatum, L. (Gramineae). 

 North Australia, Dr. Gilruth, 1911. 



Petroi'HILA incurvata, W.V.F., Journal of But any, vol. ")(), 1912, 

 p. 22. (Proteaceae). 



Mt. Churchman, West Australia, Young, 1870 (0: Wathenxi, West 

 Australia. Max Koch, 1905, No. 1522. 



Tliis plant was originally described by Baron Mueller as 1'. semi- 

 furrafa, var. phi ni folia, in Fragmenta, vol. x., p. 47, 1876, owing to 

 the resemblance of the cones to this species. Owing to the absence of 

 flowers the stigmas were not seen, but the later specimens show them 

 to 1)0 distinctly fusiform, so that apparently the new species formed 

 from tliis variety is based ujion valid characters apart from the 

 foliatre. 



