BRYUM (WEBERA) BREIDLERI. Juratzka. Dioicous. St. 1½in. reddish brown and procumbent below, light green above, l. ovate, decurrent, erecto-patent, concave, serrate towards apex, margin recurved, thinly nerved nearly to apex, areolæ narrow elongate, upper acute at both ends, lower quadrate; male fl. terminal discoid, outer perig. l. spreading elliptic-lanceolate, saccate at base, margin strongly recurved, apex cucullate serrate; inner obovate, suddenly acuminate; perich. l. linear-lanceolate, strongly nerved; caps. oval pendulous, glaucous green when young, pale reddish brown when ripe, on a slender seta geniculate at base. [Hunt. Mem. Lit. and Phil. Soc., Manchr., 1871–2, p. 101.] Wet _debris_ of slaty rocks near springs. VII. VIII. Glen Callater, Loch-na-gar, Carnlochan Glen (Hunt). BRYUM. (WEBERA) SCHIMPERI. Wils. (_non_ Bry. Eur.) L. more rigid, erect, narrow, lanceolate, less decurrent, nerve stronger, continued almost to apex; areolæ a little longer and more obscure. [Hunt, l. c.] _Debris_ of micaceous rock. VII. Ben Lawers, Perthshire Mts., Snowdon. II. ALTERATIONS OF NOMENCLATURE, AND SYNONYMS. No. 54. _W. truncicola_ De Not. = DICRANUM MONTANUM. Hedw. “Having shown the specimen to Prof. Lindberg during his recent visit, he informed me that he was under the impression that Juratzka had referred it to _Dic. montanum_; and on comparing the two I find they are truly identical. The species is, however, none the less an addition to our flora.... its place will be next to _D. strictum._” [Dr. Braithwaite, in _Grevillea_ i., p. 75.] No. 71. _Dicranum polycarpum._ β. _strumiferum_ = ONCOPHORUS STRUMIFER. Brid. ONCOPHORUS. BRID. L. spreading flexuose from a sub-decurrent base; caps. cernuous incurved, neck shortly and widely strumose, not striate. O. STRUMIFER. Brid. “This is again restored to the rank of a species, as it differs from _O. polycarpus (Dicranum)_ in the caps. being more or less cernuous, constantly strumose at base, with a compound annulus, and in the leaves having papillæ only on the upper surface.” [Dr. Braithwaite, Jour. Bot. VIII. 228.] 84. DICRANUM HETEROMALLUM. δ. _sericeum._ Add as a synonym, _Dicranodontium sericeum_. Schp. 85. _D. Starkii._ β. _molle_ = D. ARCTICUM. Schp. Its general appearance better distinguishes it from _D. Starkii_ than its microscopical characters. It is _quite erect_, growing in large loose patches, stems 3–4in., elastic, very robust; foliage of a fine purplish brown colour; leaf wider below, and more suddenly contracted upwards, with a thinner nerve; fruits earlier. [Hunt. l. c. p. 321.] Ben-mac-dhui and Ben Nevis. 92. D. CIRCINNATUM. Wils. Add as synonyms _Dicranodontium aristatum_. Schp. _D. asperulum._ Mitt.