May, 1907.] THE VICTORIAN NATURALIST. 1 5 



UNRECORDED INTRODUCED PLANTS. 



By Prof. A. J. Ewart, Ph.D., D.Sc, F.L.S., &c. 



(Read be/ore the Field Naturalists'' Oluh of Victoria, 8th April, 1907). 



Alyssum maritimum, Lam. — Cruciferas. Sweet Alyssum. 

 Warrnambool and Port Fairy, 1901, H. B. Williamson. 



Cenchrus tribuloides, Linn. — Grarainese. 



This genus is represented in Queensland and New South 

 Wales, but by different species. The present one is an intro- 

 duction from North America. The grass is obnoxious, on 

 account of the prickly burr-like fruits, this introduced species 

 being far worse than the native Australian ones, which so far do 

 not appear to have invaded Victoria. 



From Colac, Mariner, 1895 (under name C. echinatus, a New 

 South Wales species); Noradjuha, Shire of Arapiles, A. Sinclair; 

 and Angustown (Reedy Lake), G. Cameron, 1907. 



Collomia linearis, Nutt. — Polemoniacese. Narrow-leaved 

 Collomia. 

 Romsey, Seymour, 1907. 

 Probably only a garden escape. 



Convolvulus arvensis, L. 



A troublesome weed in gardens. 



Crepis FfETiDA, L. — Compositse. Fetid Crepis. 



Near Dookie, W. Gamble, January, 1907. 



Likely to prove a troublesome weed. Fruits with pappus, 

 spread by the wind. 



Eleusine coracana, Gaertn. — Graminece. 



Near Melbourne, C. Walter, January, 1883. Ex herb. Walter, 

 under name E. indica ; South Australia, W. J. Colebatch, March, 

 1907. 



Lychnis dioica, Linn., var. alba (Lychnis vespertina, Sibth.) — 

 Caryophyllese. White Campion. 

 Snowy River, October, 1904. Sent by H. B. Williamson, 

 February, 1907. 



Medicago maculata, Willd. Spotted Medick. Generally 

 distributed. 



M. orbicularis, Allioni. Generally distributed. 



M. scutellata, J. Bauh. Generally distributed. 



The foregoing Medicks were probably introduced with agri- 

 cultural seed , the two latter are mentioned in Mueller's " Select 

 Plants," and are known as Snail-Clovers. 



OxALis cernua, Thunb. South African Wood-Sorrel. 

 From various localities ; widely spread. 



