NEW BRITISH MOSSES. 171 
ovato-acuminatis, superioribus ovato-lanceolatis, concavis, 
margine revolutis, integerrimis, costa cum vel sub apice 
evanida instructis, perichætialibus angustioribus ; capsula 
nutante vel pendula, pyriformi, annulata; operculo par- 
vulo, convexo, apiculato; peristomio interno ciliis rudi- 
mentariis seu nullis."— Bryol. Eur. 
* Bryum lacustre Brid. Mant. Musc. p. 120; Br. cer- 
nuum Brid. Bryol. univ. Suppl. p. 857; Mnium lacustre, 
Bland. Musc. exsice.—Schwaegr. Suppl. 1, P. II, p. 135, 
Tab. 79.—Réhl, Deutsch. Flora, II, p. 96; Hypnum la- 
custre, Web, et Mohr, Bot. Taschb., p. 285; Pohlia lacustris, 
Hübener Musc. Germ. p. 483 (nec Schwaegr. sp. Muse.) ; Bry- 
um cespiticium var. Musc. Brit. 201.—Walker—Arnott, 
Disp. Meth. 46.” (fide B. et 8.) 
Haz. “ Gathered at Ealing, forty years ago, by Mr. Eagle.” 
Borrer in litt., Apr. 1844. ` = 
I have compared this moss (which was given to Mr. Borrer 
by Mr. Eagle without name) with specimens of Bryum la- 
custre (Bryol. Eur.) from M. Bruch, and find them to corres- 
pond exactly, except in the smaller size and the somewhat 
broader and firmer leaves. 
Stems not exceeding three or four lines in length, slightly 
branched, reddish, and as well as the branches, leafless to- 
wards their base, but densely radieulose. Leaves patent 
(on the innovations erecto-patent), yellowish-green, not 
closely imbricated, ovate, apiculate or acuminulate, very con- 
Cave, keeled, recurved at the margins; the perichætial leaves 
 Ovato-rotund ; all widely areolate (not margined with two or 
three rows of narrow cellules as in Br. cernuum and inclina- 
tum), nerved nearly (more rarely quite) to the summit. In- 
florescence hermaphrodite; antheridia numerous. Vaginula 
Small. Seta very long in proportion to the size of the cap- 
‘Sule. : Capsule pendulous, pyriform, widely areolated, often 
abortive (as remarked also by B. and S.) Annulus broad. — 
Peristome short; the inner very fragile, partially glued tothe _ ee 
"iter; pohlioid, the processes perforated. Lid conical. Spores 
