Appendix to the ‘ Phytologist ’ for 1851. 
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BY 
EDWARD NEWMAN. 
The publication of the new edition of the ‘ History of British Ferns ’ 
has been unavoidably delayed, owing to the time occupied in making 
the very elaborate engravings of the new species, and also in searching 
continental authorities for the purpose of ascertaining and properly 
arranging the synonymy. Both these objects have now been accom¬ 
plished, and the technical portion of the work is published at One Shil¬ 
ling, under the above title. 
It comprehends brief descriptions of the orders, families, genera and 
species, and ample references to the authorities from which each name 
is derived. 
When a species has received two or more specific names, the date of 
each is given; and from these it will frequently appear that the oldest 
name has not been generally followed, although it is unquestionable 
that the distinguished botanists who have adopted and thus popularized 
the more recent names were not ignorant of the earlier ones, and have 
therefore obeyed' some other law than the simple one of priority. 
Beferences to foreign works are given only when needful; but re¬ 
ferences to the undermentioned British works accompany each species; 
and it should be observed that the last edition is invariably quoted, 
unless it is otherwise expressed: this is done on the supposition that 
the last in every instance contains the matured views of the author. 
Hads. FI. Ang. Hudson’s Flora Anglica. 
Lightf. FI. Scot. Lightfoot’s Flora Scotica. 
With. Bot. Arr. Veg. Withering’s Botanical Arrangement of Ve- 
With. Arr. Withering’s Arrangement of British Plants. 
Sm. E. F., E. B. Smith’s English Flora and English Botany. 
E. B. S. Supplement to English Botany. 
Mac. Mackay’s Flora Hibernica. 
Newm. N. A., F. Newman, the Naturalists’s Almanack and His¬ 
tory of British Ferns. 
Hook, and Am. Hooker and Arnott’s British Flora. 
Bab. Babington’s Manual. 
The Italics show the manner in which the works are quoted. 
In addition to descriptions and synonymes, the geographical range 
of the species in Britain is also given. 
JOHN VAN VOORST, PATERNOSTER ROW. 
