gas SALMON: SOME SPECIES OF ECTROPOTHECIUM 
barium, is certainly not Miller's 4. conostegum, but it is identical 
with £. amphibolum Spruce. 
Mitten, in 1869, in Musc. Austr.-Amer. 518, published, as a 
new species ‘‘ Ectropothecium flavoviride. Ins. Cuba, Wright, n. 
120, ex parte.” I have examined the type in Mitten’s herbarium, 
and find that it agrees well with Hampe’s 7. Poeppigiana. 
Whilst clearly belonging, in my opinion, to this, it is somewhat 
marked in possessing long-acuminate and rather narrow leaves, 
and in having the margin of the dorsal branch-leaves recurved at 
the middle of the leaf. The ventral branch-leaves in Mitten’s 
type are frequently subulate-acuminate. In some of the branches 
of the type-specimens of H7. Poeppigiana, however, the ventral 
branch-leaves are of exactly the same shape (while on other 
branches they are simply acuminate), and occasionally, also, the 
margins of the dorsal branch-leaves are recurved. 
Part of the specimen in the Kew Herbarium under the mo. 720 
in Wright’s Cuban Mosses is the same plant as Mitten’s £. 
flavoviride. 
The present plant, described by Hampe as Hookeria Poep- 
pigiana, certainly presents characteristics which might lead us at 
first sight to suppose that it was specifically distinct from &. 
vesiculare. These characteristics are the more robust habit (shown 
in Hampe’s figure), the pale color, the longer stems with less 
patulous branches which sometimes bear secondary branchlets, 
and especially the different shape and arrangement of the branch- 
leaves. In the present plant the dorsal and lateral branch- 
leaves are usually longer, narrower, more acuminate and with 
firmer areolation than in &. vesicu/are, and the branch-leaves are 
more crowded and arranged in many rows, so that the branches 
present a very different appearance from the complanate branches 
of £. vesiculare type, with their marked subdistichous arrangement 
of dorsal and lateral branch-leaves. As pointed out above, how- 
ever, we find both in authentic specimens of Hookeria Poeppigiana 
from Peru, and of Hypnum conostegum from Cuba, some stems 
showing characters which clearly point to too close an affinity 
with £. vesiculare to allow of the present plant being given more 
than a varietal rank. 
From all forms of the variable E. amphibolum, Spruce, E. vest 
culare Poeppigianum may be at once distinguished by the less 
