THE GENEllA OF MOSSES. 
83 
sissimis succulentis processubiis exstructa, quos dentibus 
quasi adglutinatos reperi, cum horum unum alteruraque 
de sua sede solverem.'"' With this account given by 
Weber and Mohe. our examinations induce us to coin- 
cide, and to differ somewhat from Dr Hooker, who, in the 
Flora Londinensis, seems to describe and figure them as 
free to the base, — a circumstance also supported by Mr 
Brown, who remarks, " The peristomium of Buxhaumia^ 
originating entirely from the outer membrane, may, tliough 
consisting of several, and even of dissimilar, series, be re- 
garded as analogous to that portion of the pencil of Daw*, 
sonia, which arises from the same part of the capsule. 
This analogy is suggested by Mr Hooker, and is con- 
firmed by a circumstance that he does not seem to have 
noticed, namely, that his outer peristomium, the corona of 
Hedwig, consists of a double series of cilia. The number 
of cilia in each series exceeds sixteen, but hardly amounts 
to thirty-two ; it probably, however, corresponds with that 
of the plicae in the membranaceous peristomium t." Though 
Buachaumia resembles Dawsonia in the similarity of the 
origin of the cilia, the cilia themselves only resemble each 
other in being destitute of articulation. 
BuxBAUM, in his Centuria II. p. 8, described the theca 
of this moss as bivalve ; — " Huic insidet capitulum recur- 
vum, ex duabus valvis compositum secundum longitudinem 
dehiscentibus, quarum inferior teres, superior vero magnis 
depressa in unquem brevem desinit." Upon this passage 
there is the following remark, in the Amoenitates Acade- 
micae % : " Dum Buxbaumius dicit capitulum findi vel 
secundum longitudinem dehiscere, a vero maxime deflectit ; 
• Handbuch, p. 382. 
X Vol. V. p. 88. 
f Linn. Trans, vol. vol. xii. p. 58?. 
