19 
MICROSCOPICAL AND NATURAL HISTORY SECTION. 
October 9tli, 1871. 
Joseph Baxendell, F.R.A.S., President of the Section, 
in the Cliai r. 
“ Notices of several recently discovered and undescribed 
British Mosses,” by G. E. Hunt, Esq. 
Oymnostomum Calcareum, N. and H., var. brevifolium, 
B. and S. Gymnostomum viriclulum, Bridel. 
Perennial ? dioicous ; stems coespitose, sparingly branched, 
very slender, a third of an inch in height, of a reddish brown 
colour below, upper part pale green, slightly glaucous; 
leaves ovate or ovate lanceolate, with erect bases, thence 
spreading, papillose, margin crenulated in the upper part; 
cells in the upper portion of the leaf opaque, quadrangular, 
in the lower portion elongated, sub-diaphanous; nerve 
thick, papillose, extending almost to the apex. Male 
flowers gemmiform, on very short axillary branches which 
usually spring from an innovation ; perigonial leaves ovate, 
suddenly acuminated, nerved to the apex. 
I have not seen female flowers or fruit. 
Habitat : Rocks at Blackball, near Banchory, where it was 
discovered by Mr. John Sim. 
Entosthodon minimum, Hunt, sp. nova. Annual, dioicous; 
stems gregarious, erect, an eighth to a quarter of an inch 
high; lower leaves obovate, margin reflexed, nerve thin, 
vanishing below the apex ; upper leaves oblong, suberect, 
subcanaliculate, margin recurved, crenulate in the upper 
part, nerve rather strong, produced almost to the apex ; 
areolse large, those of the lower part of the leaf elongate- 
hexagonal, of the upper part shorter. 
Male plants with the flowers terminal, antheridia 6 to 8, 
sessile, without paraphyses, perigonial leaves usually like 
the upper stem leaves, but occasionally (together with all the 
stem leaves) obovate, when they contain clavate, slightly 
swollen paraphyses, without antheridia. 
female plants with the flowers both terminal and in the 
