276 Mr. R. Spruce on the Musci and Hepatice of the Pyrenees. 
This species is abundant in woods on calcareous soil near Castle- 
Howard, but is always sterile. 
24.. H. elegans, Hook. Muse. Exot. t.9; Schwgr. Suppl. t.282a. 
H. planifolium, Brid.? Bryol. Univ. 2. p. 411. 
Hab. Z,-» P. ¢. prope B.-de-Bigorre, ad terram (2); Bois de 
Sajust prope B.-de-Luchon, ad rupes graniticas ( 3 etd). 
Mr. Wilson has lately found in Mr. 'l'urner’s herbarium fertile spe- 
cimens of this (gathered near Bantry by Miss Hutchins, but con- 
founded with H. denticulatum) which agree in every respect with the 
original specimen in Herb. Hook. (gathered by Menzies on the N.W. 
coast of America). He also suggests that H. planifolium, Brid., 1. c., 
gathered by Lapylaie near Falaise, is the same species, but there are 
some discrepancies not easily reconcileable. For instance, our plant 
has the leaves remarkably deflexed at the apices so as to appear secund 
in profile, whereas Bridel says ‘ folia recta ;” but on the whole I ad- 
mit that it is very probable he had the same species under his eye. 
In the Bots de Sajust I found male and female plants intermixed. 
The former are very slender and elongated: the flowers are situated 
on the stem and the lower part of the branches, those near the base 
of the stem often fascicled, but the upper usually solitary ; they con- 
sist of about ten ovato-lanceolate, shortly acuminate, concave leaves, 
and include about four paraphysate antheridia. . 
In April 1846 Mr. Borrer and myself gathered H. elegans on the 
sand-rocks in Eridge Park, Tunbridge Wells, and I have since met 
with it abundantly in the neighbourhood of Castle- Howard, in Eskdale, 
&c. Perhaps Dr. Taylor was the first who ascertained its existence 
in the British Isles and clearly distinguished it ; Messrs Wilson and 
Mitten have also found it in several stations. It grows on decaying 
vegetable matter, on the earth or on rocks, avoiding only such as are 
calcareous, while H. depressum, its very near ally, is quite pertina- 
cious in selecting a calcareous matrix. ‘The former differs from the 
latter chiefly in the more faintly toothed or quite entire leaves, their 
slenderer points and closer more chlorophyllose areolation, but éspe- 
cially in the pendulous capsule. Both species are dioicous, scarcely 
ever fruiting, but propagating themselves by slender deciduous flagel- 
liform ramuli, which spring from the stem in fascicles. These ra- 
muli are sometimes so numerous as to be alone visible, and being 
clad with minute distant leaves, they give to the tufts the bei.tirs of 
drawn-up H. subtile. 
25. H. trichophorum, Spruce in mst. Leskea pilifera, waits ! 
(ex herb. Smithii). Neckera p., Muse. Pyr. 66. H. denticulatum 
var. Donnianum, Drumm.! Muse. Am. n. 165 (nonnull. exemplo- 
rum): non H. Donnianum, Sm. 
Hab. Z, ad latera scopulorum graniticorum versus terram spec- 
tantia, in umabeokeanih vallis Jéret, P. oce. 
Inflorescence monoicous : flowers fascicled, the male and female in 
separate fascicles. Peristome very pale, especially the outer ; the zaner 
cloven to 2rds of its length: processes perforated, between the articu- 
