Musc t ExorTici.— Nienxieciant. 
LESKEA LAXIFOLIA, 
Leskea caule procumbente pinnato, foliis laxe imbricatis, 
caulinis subdeltoideis, rameis ovatis, omnibus acumi- 
natis, nervo ante apicem evanescente, seta seabra, 
eapsula ovato-globosa, operculo conico-acuminato, 
(Tan. XXX.) 
Has, In plaga occidentali America Borealis. D. Menzies, 1791. 
Caules 3-4-unciales, procumbentes, pinnatim ramosi, ramis bre- 
vibus, attenuatis, subsimplicibus. Folia laxe imbricata, serru- 
lata, mollia, sordide viridia, nitoris omnino expertia, areolis 
reticuli minutissimis, nervo obscuro ante apicem evanescente 5 
caulina ovato-deltoidea, brevi-acuminata; ramea ovata, sub- 
longe acuminata. Perichetialia oblonga, longe attenuata, con- 
cava, enervia, apice solummodo serrata, Sefa vix unciam 
longa, flexuosa, tuberculata. Capsula ovato-globosa, cernua. 
Operculum conico-acuminatum, apice sensim curyatum, 1¢- 
visiomium Leskee. 
Although a true Leskea as far as the peristome can make it so, 
this species has not, what is common to many species in the 
genus, the upright capsule; and in many particulars it comes very 
near the moss figured in the following plate (Hypnum crispifo- 
lium). This species is much the smaller of the two; and when 
the leaves come to be examined, the direction, form, and even 
texture will be found to differ in the two. From H. velutinum 
it is hard to distinguish this species in words (setting of course 
aside the difference in the peristome); but it may be observed 
that the stems are much longer in our plant; the leaves, of the 
stem particularly, broader, far less rigid, and with a longer but 
more indistinct nerve, 
Fig. 1, plant zat. size. Fig. 2, portion of ditto. Fig.3, cau- 
line leaf. Fig. 4, ramalleaf. Fig.5, perichetialleaf. Fig. 6, 
capsule. Fig. 7, teeth of outer peristome. Fig. 8, portion of 
inner ditto.—magn. 
