694 



these are merely transcribed from Steudel's Nomenclator, without 

 change or addition. For anything that appears in Mr. Ibbotson's 

 Catalogue, all English authors may have used the name of Crepis 

 virens only and constantly. 



A similar omission occurs under " Barkhausia taraxacifolia, Z>ec." 

 Repeatedly as this plant has been published under the name of 

 Crepis biennis, by English botanists, we do not find any English author 

 quoted for this synonym. As for as far as the Catalogue goes, no 

 such misnomer may have ever occurred in this country. 



Some of the author's own errors, — not of omission, but of commis- 

 sion — seem quite unaccountable. Thus, for example, the " Hypochoe- 

 ris maculata, Sm. E. ^." is placed as a synonym of the stained- 

 leaf variety of Hieracium murorum, to which Mr. Samuel Gibson 

 gave the name of Hieracium hypochoeroides (Phytol. i. 741, 802, &c)., 

 And this odd mistake becomes still more odd, when we see the name 

 of the same species, "Hypochceris maculata, im.," also quoted as a 

 synonym of " Achyrophorus maculatus, Scop.,'" and rightly so quoted. 



The Hieracium pulmonarium, of Smith, is still entered as two 

 species ; first, under name of " nigrescens," and, secondly, under that 

 of " pulmonarium ;" under this latter name, being made the typical 

 form of Hieracium diaphanum of Fries. This is doubtless copied 

 from Babington's Manual ; and had not the fact of specific identity, 

 between the two alleged species, been subsequently made public in 

 the pages of the ' Phytologist' (Phytol. ii. 442 and 496), we should have 

 held Mr. Ibbotson quite excused for merely continuing a mistake, 

 which had formerly arisen from an imperfect knowledge of the plant 

 intended under those names. At first, we had thought that the excuse 

 of date might sufficiently account for the repetition of this inaccu- 

 racy; but on the same sheet of the Catalogue we find the name of 

 Vaccinium macrocarpum, a species which was first published, as 

 British, on the very same leaf of the ' Phy tologist,' on which the identity 

 of Hieracium pulmonarium and nigrescens was distinctly announced. 

 This circumstance proves that the correction was within reach of Mr. 

 Ibbotson, before he reprinted the error. 



Still, this Catalogue may have its use. First, having the advantage 

 of a date two years later, than that of the ' London Catalogue,' it in- 

 cludes some few species and corrections which have been published 

 within those two years. But against this small superiority we have 

 to balance its price, which is (or, when complete,will be) twelve times 

 that of the ' London Catalogue.' Secondly and chiefly, it includes a 

 reprint of Steudel's collection of synonyms, with some additions from 



