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THE BRITISH MOSS-FLORA. 351
6 plates containing illustrations of 26 species ; and treats of 14
genera. Upon comparing it with "Wilson's ' Bryologia Britannica,'
Ave find a new genus and a new species added to the British Flora.
The new genus is Nanomitrium Lindb., of the four species of which
one only is found in Britain, .V. tenerum Lindb. [Phascum Bruch).
This species is remarkable for having been found twice only,—at
Niesky in Silesia, by Breutel, some sixty years ago, and at Hurst
pierpoint, by Mitten, in 1854. The new species is Funaria microstoma
Br. et Sch., occurring in Sussex and Hampshire.
Entosthodon is united with Funaria, and constitutes a section
of that genus. Funaria calcarea Wahlenb. includes F. hibernica
Hook, as a synonym, and under it is given an account of the confused
synonymy of F. 2Luehlmhergii and of Lindberg's attempt to
put an end to it by re-naraing the species.
Mielichhoferia nitida Hornsch.aud Orthodontium gracile Schwaegr.
appear respectively as Oreas Mielichhoferi Brid. and Stableria
gracilis Lindb. The genus of Bryacece which is commonly known
as Webera must be looked for under Pohlia, the author having
already employed the name HVAfra for Diplujscium in part x.
It is to be regretted that a work of such costliness and
beauty is not more carefully revised, e.g., on p. 110, at the end of
the list of works quoted in reference to Splachnum sjihtEricum, after
" Juratz." should be supplied the words " Laubm. oester.-ung. 234
(1882)." Hampe's genus, which " Mr. Mitten unites with Mielichhoferia,"
is not Haplomitrium, which is a genus of Hepatics, but
Haplodontium. Leptohrgum tenuinerve is not one of Spruce's species,
as one might be led to suppose by the text, but is No. 252 of
Spruce's ' Musci Amazonici et Andini,' called by Lindberg (?) Leptubrgum
tenuinerve. (There is in the Herbarium of the British
Museum a specimen of this moss, received from Lindberg and
named Leptobrgum angustinerve Lindb.) " L. robustum from Austraha"
is also one of Lindberg's species. These, however, are but
trifling errors, and do not detract fi'om the value of Dr. Braithwaite's
work.
The name Leptobrgum gives rise to an interesting speculation as
to who was the real authority for that name, and for the combination
Leptobrgum pgrij'onne. Lindberg and British authors, including
Dr. Braithwaite, make Wilson the authority ; continental
authors accept Schiraper. The names first appeared in the year
1855,—in Wilson's 'Bryologia Britannica,' p. 219, and in Schimper's
' Corollarium Bryologia? Europaeae,' p. 64. Wilson does not quote
the author's name, which would lead one to believe that he
originated the genus. Schimper, on the other hand, quotes
himself as the author in the • Synopsis Muscorum Europ:uorum,'
pp. 328, 329 (1860), and retains the claim in edition ii. pp. 389,
390 (1876). The questions to be settled are two:— (1), whether
Wilson's 'Bryologia' preceded Schimper's 'Corollarium,' or rice
versa; and (2), whether Schimper invented the name and communicated
it in MS. to Wilson, and the latter introduced it into
his book without acknowledging its source. ^_ q