14 MUscI PRAITERITI. 
immersed stones in the Pastasa itself. The most conspicuous 
companions of the Scopelophila (as we must for the present call it) 
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calyptras). Other mosses were Holomitrium pulchellum, Mitt., 
several species of Hookeria, Frullania, Madotheca, &c. ; and minute 
Daltonias perched on the slenderest twigs of overhanging trees and 
this Andine moss and its Pyrenean congener, if they should be 
really distinct. His published account of the former appeared in 
the twelfth volume of the ‘Journal of the Linnean Society,’ under 
the name Weisia (Scopelophila) Agoyanensis, Mitt. He did not point 
out how it differed from the Pyrenean moss, but merely remarked : 
‘The other species referable to this group [Scopelophila] are the 
Encalypta ? ligulata, Spruce, Musc. Pyr. 831, and a few others 
om India and Java; all agree in their rather firm smooth foliage 
and slender pale fruit-stalk.” (l.¢., p. 135). (S. ligulata, however, 
has soft fragile foliage. 
¢ following diagnosis embodies all the differences I have been 
able to detect. It will be seen that the two Species are separated 
rather by the sum of small differences than b any one marked 
character. It is, however, only the foliage we are able to compare, 
e fruit of S. ligulata being still a desideratum. 
quam S. ligulate. Folia parum diversa, subbreviora, spathulato- 
ligulata rotundata obtusutave, rarius solum obtusa, carinata, alis 
ms \giaee. 
recurvulis apice e slcca apice a, 8 e 
magis opaca (quam 8. ligulate) inferne tamen spatio longiore—a 
basi adusque a medium—pellucida; cellulis omnibus planis 
viridi s i a 14x: 
ovato-oblonga, virescens, tate fusca, leptodermis, erecta vy. parum 
inata et subgibba, ore vix constricto annulo duplici angusto 
utius persistente instructa, cater g ma, sicca Vix 
mutata estriata parum corrugata. Calyptra opercul paulo 
excedens viridis, apice nigrescens, conico-a a dimidiata, 
