‘Mr. R. Spruce on the Musci and Hepatice of the Pyrenees. 277 
lations, nearly throughout their length: cilia none or quite rudi- 
- mentary. 
In ‘ Musci Pyr.’ I placed this moss along with the first section of 
Neckera (Omalia, Brid.), to which it approaches very much in habit ; 
but the Omalie differ from it so essentially i in some of their characters, 
that I feel compelled to withdraw it from their society. O. compla- 
nata has the capsule very narrow-mouthed, the peristome conse- 
quently small and the outer teeth remarkably slender; the processes 
of the inner are entire, very slender and fragile, and the basal membrane 
rises very little above the mouth of the capsule (so that the moss might 
be considered a true Neckera with as much justice as N. pumila, from 
which I am not certain that it should be separated). The inflores- 
cence is dioicous. O. trichomanoides has a wider-mouthed capsule ; 
the inner peristome firmer, reddish, the basal membrane = {th of the 
whole, the processes deeply carinate but not lacunose. ‘The inflores- 
cence is monoicous, and the flowers are mostly solitary. 
Hypnum trichophorum differs from both these, not only in the pe- 
ristome, but in the flaccid irregularly divided stems ; the symmetrical 
leaves, which are not 4-stichous, nor (as in the Omalie) so decurved 
at the apices as to make the branches appear channeled when viewed 
from below ; the long-necked capsule; the conical lid, &c. In nearly 
all these characters it is closely allied to H. denticulatum and pul- 
chellum, both of which have not unfrequently a nearly symmetrical 
capsule. H. elegans is intermediate as to the form of its leaves 
between H. denticulatum and H. trichophorum. 
It is with great reluctance I change Swartz’s specific name, but 
this is rendered compulsory by the removal of the species into Hyp- 
num, where there is already a ‘‘ piliferum.” I shall not, however, 
quarrel with those who are disposed to raise this section into a sepa- 
rate genus, and restore to the species its original name. 
26. H. pulchellum, Dicks.! Fasc. 2. p. 13. t. 5. f. 6; Herb. Sicc. 
fase. 9. n.22. H. nitidulum, Wahl. Fl. Lapp. p. 370; M. P. 63. 
Hab. Z,_4 ad truncos putridos, in rupium fissuris, &e., P. oce. 
etc. V. de Jéret; Esquierry, &c. En montant au Lae Lehou 
(Philippe !). 
27. H. denticulatum, L. Sp. Pl. p. 1595 ; Hedw. Muse. Frond. 
A. t. 3. 
Hab. Z,-» ad \ligna putrida. A sequente florescentia monoica 
distinctum. 
28. H. sylvaticum, L. Syst. Veg. p. 950 ; Schwgr. Suppl. t. 87 ; 
M. P. 64 (ex parte). 
Hab. Z¢_, ad ligna putrida, in rupibus subhumidis, &c. 
When growing in water or in moist places, the leaves of this spe- 
cies often put forth radicles from or near their apices. 
29. H. undulatum, i. Sp. Pl. p. 1589 ; Schwegr. Suppl. t. 282 ; 
M. P. 65. Soapene 
