THE CONYZAS OF MILLER's DICTIONARY (eD. 8). 51 



Bromus sterilis L. Plentiful in sandy ground, Kosslare.— B. com- 

 mutatus Schrader. Meadow about two miles south of Wexford ; 

 evidently native. 



Chara fiaqilis L. In a small pond near the sea, south ot Arda- 

 mine ; perhaps the var. delicatida, but barren, and too dirty to be 

 worth collecting. C. canescens and C. connivens seem to be extremely 

 local near Wexford ; I could only find them for about a hundred 

 yards, in small quantity, whereas Tolypella ghmerata and Chara 

 aspera were abundant over a considerable area. 



THE CONYZAS OF MILLER'S DICTIONARY (ed. 8). 

 By James Britten, F.L.S. 



The plants referred to Co7iyza by the older writers have been 

 relegated by more recent workers to many genera, and very few of 

 the 'earlier species are retained in the genus as now understood. 

 Mr. Hiern informs me that in the first edition of the Species 

 Plantarum Linnseus had eleven species of Conyza, none of which 

 are now retained therein ; they belong to Vernonia, Sericocarpus, 

 Pluchea, Inula, and Neurola^ia. In the tenth edition of the Systema 

 Natures, published in 1759, Linnaeus had two additional species, 

 now referred to Venionia and Pluchea respectively ; in later publi- 

 cations, posterior to Adanson, he had nine other species of Conyza, 

 belonging to Venionia, Placus, Pterocaulon, and Phagmdon ; the 

 whole of the Linnean species therefore disappear from Conyza. 



Miller, in the eighth edition of his Gardeners Dictionary (1768), 

 enumerates eighteen species. Seven of these are identical in name 

 with species described by Linnaeus ; the remaining eleven appear 

 for the first time. Many of them are based on Houstoun's MSS. ; 

 none appear to have been dealt with by subsequent writers, and 

 they are not reduced in the hulex Kewensis. 



Recent papers in this Journal upon Houstoun's and Miller's 

 plants have, I hope, made it clear that the material for determining 

 these can only be found in the National Herbarium. From this 

 material I have been able to identify with certainty nearly all of 

 Miller's species, and I now propose to place on record the results of 

 my investigations. I arrange Miller's names in alphabetical order 

 for convenience of reference. 



Conyza Bacchaeis Mill. Diet. no. 16 = Pluchea hifrons DC. 

 Miller cites Eupatorimn conyzoides Sinica, &c., of Plukenet (Amalth. 

 80, t. 393, f. 5) as a synonym, but a comparison with Plukenet's 

 specimen in Herb. Sloane xciv. 94, shows that this is not the case. 

 Miller himself was doubtful as to the synonym, for his label on his 

 specimen in Herb. Banks begins "An ? Eupatorimn conyzoides 

 Sinica,'' &c. Miller received the seeds from Campeachy, and grew 

 the plant in Chelsea Garden. 



Conyza corymkosa Mill. Diet. no. <^=Vernonia farchonanthifolia 

 Sch. Bip. ? Mr. Bennett has identified Miller's plant with DeCan- 



