Mr. R. Spruce on the Musci and Hepatice of the Pyrenees. 285 
dato-triquetra (ramulorum cordato-ovata), longe acuminata, plicato- 
striata, argute serrata, margine utrinque ad basin reflexa superne 
plana, nervo crasso paulo ultra medium desinente instructa, areola- 
tione mediocri, amoene viridia v. fuscescentia, nitida. Florescentia 
dioica. Flores masculi ad caulem et ramos plant tenuioris nati ; 
folia perigonialia sat numerosa, ovato-acuminata, concava, integer- 
rima, enervia vel rarius quadam nervi umbra predita ; antheridia cir- 
citer 20, brevi-pedicellata ; paraphyses illis numerosiores sublongio- 
resque. Flores feminei folio caulino longiores ; folia perichetialia 
circiter 17, erecta, externa minuta, rotundato-ovata, enervia, intima 
oblonga, in acumen flexuosum, serratum et ad basin nonnunquam 
inciso-serratum subito attenuata, nervo rudimentario in acumen pro- 
ducto instructa ; archegonia paraphysibus numerosis stipata. Vagi- 
nula oblonga, teres. Pedicellus uncialis, aut paulo longior, levis, 
siccitate dextrorsum contortus. Capsula ovali-oblonga, inclinato-sub- 
cernua, badia. Operculum e basi convexo-conica rostratum, capsule 
longitudine. Peristomium: dentes externi sedecim, subulato-acumi- 
nati, linea media exarati: tmterius membrana pallidior, in processus 
totidem carinatos et in carina szepe perforatos, cillis 2—3-nis, haud 
ferme fragilibus, interjectis, apice usque ad 2 fissa. 
Ab H. longirostri quod proximum refert, statura duplo minori ; caule 
_prostrato ; foliis nitidis, longius acuminatis, minus conspicue striatis, 
angulum 45°-50° cum ramo efformaniibus (nec ut in H. striato fere 
squarrosis) ; capsula breviori, nequaquam horizontaliter cernua, et pe- 
ristomio interno profundius fisso, ciliis validioribus, distinguitur. 
Obs. Specimens gathered by Mr. Wilson near Killarney have the 
leaves sometimes more widely spreading, and therefore approach 
H. longirostre more nearly; still the ‘habit is the same as in my 
Pyrenzan plant, namely very nearly that of H. velutinoides, Bruch, 
which however differs essentially from H. striatulum in the rough 
pedicel and the form of its leaves. Mr. Mitten’s specimens, gathered 
in Sussex, about the roots of trees in a chalky soil, have much of the 
external aspect of Isothecitum myosuroides, 
80. H. strigosum, Hoffm. Deut. Fl. 2. p. 76; M. P.11. A. pul- 
chellum, Hedw. Sp. Muse. t. 68. 
Hab. Z, P. occ. ad terram in a bt prope Cauterets (Mont 
Lizé; V. de Combascou). | 
+H. circinatum, Brid. Mant. Muse. p. 165. 
Hab. ad muros prope Burdigalam. Circa Vallem Clausam 
(Arnott !). 
Tn all probability this species exists also in the Pyrenees, though 
hitherto not observed there. 
Tribus 2. IsorHEectace®. 
2. Climacium, W. et Mohr. 
81. C. dendroides, L. Sp. Pl. p. 1593 (sub Hypno) ; M. P.90; 
B. et S. Bryol. Eur. fase. 16. 
