BY J. H. MAIDEN AND E. BETCHE. 363 



Wales. Mr. J. L. Boorman collected it in March, 1909, in a 

 clearing in virgin forest at Dorrigo. It is a strong-growing plant, 

 attaining 5 feet in height, and is distinguished from all Austra- 

 lian species of Erechtites by the colour of the pappus, which is 

 purple at the top, paling down to white at the base. 



The species is recorded in the " Index Kewensis " from Brazil 

 only, but its range extends to North America. We have a 

 specimen in the Herbarium collected, in 1899, by Prof. C. G. 

 Pringle, in Mexico. 



Ageratum conyzoides L. New for New South Wales. 



Murwillumbah (R. C. Ewing; July, 1908). 



It is not in Mueller's Census as a New South Wales plant, but 

 one of us reported it in the Agricultural Gazette of New South 

 Wales, in the year 1895, as a troublesome weed on the Northern 

 Rivers. 



Aster subulatus Michx. 



Common in New South Wales. 



Prof. A. J. Ewart writes (Proc. Roy. Soc. Vict. xix. 34, 1906) 

 that this weed, which is common in New South Wales, appears 

 to be spreading now in Victoria, and has been sent to Kew for 

 determination, where it was determined as Aster dumosus L.(syn. 

 Tripolium conspicnum Lindl., Aster imhricatus Walp., A. arena- 

 roides Eaton). We had previously sent the same specimen to 

 Mr. H. L. Fernald, of the Gray Herbarium of the Harvard Uni- 

 versity, U.S.A., who is a well-known authority on North Ameri- 

 can plants; and he determined the plant as Aster subulatus 

 Miclix., a species distinct from A. dumosus L. In comparing 

 the New South Wales specimens with Aster subulatus and A. 

 dumosus in this Herbarium, we found that our specimens agree 

 exactly with the three or four specimens labelled ^s^e?- subidatus, 

 and received from different sources and different localities; so 

 that we must assume that Mr. Fernald's determination is the 

 correct one. 



