RECENT ADDITIONS TO OUR MOSS FLORA. 3S9 



excuiTcnt nerve, and nearly all the cells elongate and pellucid. Tliecse 

 aggregated on short peduncles, oval, unequal, rough at base, with an 

 obliquely rostrate lid. Calyptra reaching middle of capsule, sparingly 

 timbriate. Male plant also having the perigonia clustered in a capi- 

 tulum and thus precisely imitating a Folytrichum. — Hab. Dry heaths 

 and stony places, especially near the coast. Cornwall and Jersey. 

 Cromaglown, Killarney (Dr. Carrington). W. of Ireland with falcate 

 leaves (Prof. Barker). Unst, Shetland, and Tigh-na-Bruaich (Mr. 

 Shaw). After consulting the fine series of specimens in the Kew 

 Herbarium, T must concur with Mr. Mitten's reference of this Moss 

 to Iledwig's B. introjlexum ; and at the page quoted (Journ. Linn. Soc. 

 vol. xii. p. 84) ten more species will be found added as synonyms, so 

 greatly does it vaiy in size (there are specimens from Ascension 4 in. 

 long), glossiness, shades of colour, and also in the direction and length 

 of the white point. It is diffused over the whole southern hemisphere, 

 but the fruit has not been found in Europe. 



4. C. Shawii, Wilson, ms. (Plate CXI. fig. 1.)— In lax tufis, yel- 

 low-green above, blackish-brown below, 1-2 in. high. Stems robust, 

 simple or dichotoraous, bearing numerous radicles. Leaves erecto- 

 patent, straight, rigid, from a somewhat contracted linear base, lanceo- 

 late, very longly subulate, suddenly narrowed at one-third their length, 

 the margin becoming involute and thus rendering the subula semi- 

 tubular, apex acute, with a few minute denticulations. Nerve occupy- 

 ing two-thirds width of base, of three layers of cells, the anterior being 

 large, lax and diaphanous ; the two posterior small and chlorophyllose. 

 Cells at basal wings enlarged and lax, reddish brown, except the ex- 

 terior rows, which are hyaline, above these they are rectangular, but 

 soon become rhomboido-elliptic, forming about twenty-four longitudi- 

 nal ro\Vs. — Hab. Outer Hebrides, 1866 (Mr. Shaw). This fine species 

 has the leaves falcate when growing in dry places. 



5. C. alpinus, Schpr. Muse. Eur. Nov. fuse. 1 and 3 (1864). C. in- 

 termediuSy Wilson, ms. — Densely csespitose, 2-3 in. high. Stems 

 erect, repeatedly dichotomous, invested at base of innovations with 

 rufous radicles arising from back of leaf-base. Leaves rather rigid, 

 fragile and deciduous, erect or slightly secund, lowest lanceolate, be- 

 coming larger upward and longly subulate, subtubular ; the subula 

 sharply or obsoletely serrate. Nerve half width of base, composed 

 of two strata of narrow chlorophyllose cells. Basal auricles very large, 



