Mr. R. Spruce on the Musci and Hepatice of the Pyrenees. 279 
“ Var. foliis rigidis, nervo crassissimo instructis ;” M. P. 40. 
H. Vallisclause, Brid.! Br. Univ. 2. p. 534. 
Hab. in fontibus profundis secus ripas flum. Adour, in vicinia 
pagi Asté, P.c. Peet 
Specimens gathered by Messrs. Arnott and Requien at Vaucluse 
agree well with Bridel’s description, and are quite the same as my 
own from Asté. In ‘ Musci Pyren.’ I had considered H. filicinum and 
fluviatile not distinct, relying on Bridel’s description of the latter 
(Br. Univ. p. 532), where the falcato-secund leaves (rarely seen in real 
H. fluviatile) are strongly insisted on. AH. fluviatile verum is, how- 
ever, readily distinguished from H. filicinum by the monoicous inflo- 
rescence. 
38. H. commutatum, Hedw. Muse. Frond. 4. t. 26. 
Hab. Z,_2 per Pyrenzos in scaturiginosis calcareis. 
Var. alpestre, Schimp. in litt.; P. c. Vallon d’ Arise (Philippe !) 
P. or. Port Neégre (Arnott !). 
39. H. uncinatum, Hedw. Muse. Frond. 4. t.5; M. P. 41. 
Hab. Zz, ad saxa et ligna putrida. 
§ 12. CupressiroRMIA, 
40. H. Crista-castrensis, L. Sp. Pl. p. 1591; Hedw. Sp. Muse. 
t. 76; M. P. 43. 
Hab. Z, in Pyr. centralium sylvaticis, ad cataractam dict. la 
Cascade du Ceeur in valle du Lys, etiam in valle Lesponne; in 
P. oce. loco Pont d’ Espagne. 
41. H. molluscum, Hedw. Muse. Frond. 4. p. 56. t. 22; M. P. 
4A, 
Hab. Z,—; in rupibus arborumque basi. 
“ Var. terrestre, folis insigniter serratis plerumque striatis ;” 
M.P. 45. 
Hab. ad terram in sylvis circa Pau, locis Pare de Pau, Bois de 
Gan, &c. 
In the Pyrenees, this species sports into innumerable forms, some- 
times simulating H. flugellare in the laxly spreading, scarcely at all 
secund leaves, which are shorter than ordinary, more sharply ser- 
rated and distinctly striated; at other times it puts off the charac- 
teristic pectinato-pinnate ramification and assumes the habit of H. 
callichrous, to which also it approaches in the form of the leaves and 
their faintly-toothed margins. A small tuft of male plants was 
gathered in Z, (Port de Cauterets) growing with Encalypta rhabdo- 
carpa. 
42. H. flagellare, Dicks. Crypt. Fasc. 2. p. 12; H. et T.! 
Muse. Brit. t.25; M. P. 9. 
Hab. Zy sup. P.c. ad cataractam inter pagum Labassére et fon- 
tem dict. /a fontaine sulfureuse : nusquam alias vidi. 
