874 THE JOURNAL OF BOTANY 
EXPLANATION OF PuatE 443. 
Figs. 1-11.—Bryum (Br, va es Saget 1. Plant, about nat. size. 
2. Opueulete os one ure, X 1 . Deoperculate katana: showing 
peristome, x 7. 4. Portion of ri eri seal inpwin three external teeth 
xl F Ks 
gy choot pt 8, 8. akan of a stem-leaf towards the base, x 270. 
. Areolation of a pho leaf at one-half its length, showing hexagonal cells, 
: 270. arginal cells of a stem-leaf at a from the apex, showing 
_the border, x 270. 11. Transverse section of the nerve of a stem-leaf, in its 
lower half, x 170. (Figs. 1, 2, 6-11 are drawn irom the type-specimen of 
Osculatia cohtaiea De Not. in De phieiniyy s herbarium at the R. Istituto ed 
Orto botanico di eg a figs. we the specimen mentioned of Bryum 
globosum rae in w Herbar ay 
ig. 1  iphadetich bes Sind ‘fro the J sf plant sent by Dr. Geheeb). 
Portion ai ‘inner per ristome, seen from the ee 270. 
Fig. 13.—S. boliviana C. Miill., from a en in the Kew Herbarium 
Portion ai inner peristome, seen from the inside, x 170. (Note.—The surface- 
n the external peristome-teeth are not shown, for the sake of clear- 
ness, in the drawing ; also, for the same hile the walls of the cells of the 
membrane of the inner peristome are shown with thick walls, whereas (as 
is _ case also with those of fig. 12) gies — ait are very sop and delicate.) 
Fig .—Leskea gractlime, from thentic specimen = oo Kew Her- 
Portion of inner peristome, priced the well- daveloned keeled basal 
iinibenni, x 170. 
NEW VARIETIES OF BRITISH MOSSES. 
By H. N. Dixon, M.A., F.L.S. 
CampyLopus atrovirens De Not. var. graciis, var. nov. Habit 
of the most slender forms of C. flexuosus, especially var. paradoxus, 
the shorter forms closely resembling C. pyriformis. Very slender, 
1-2} in. high, bright or yellowish green above, yellowish brown below; 
i peti aM radiculose, densely tufted. Leaves frequently longer than 
n the type (6-10 mm. including the hair- point), but much narrower, 
os Se and pera arista exceedingly y slender ; cells of the upper 
half of the lamina usually rhomboid, thin-walled. 
Early in 1899 Mr. D. A. Jon aye of Harlech, sent me a specimen 
of Raat on collected by him o n Moel-yr-Ogof, Carnarvonshire, 
in April, 1898, having much the appearance of C. pyriformis, but 
a “iistinet hyaline ‘points to the leaves, for which no reersricis 
several authorities. ©. atrovirens, p mis, and a hybrid 
betwee e two were among the suggestions made! a 
the same year, Jones, having made a careful search in other 
