een, 
wane 
init le ee Tee ee 
SALMON: SOME SPECIES OF ECTROPOTHECIUM 317 
branch-leaves, also, of the two species show constant differences. 
In £. vesiculare the leaves are subentire, the margin being minutely 
denticulate only at the extreme apex; and the areolation of 
the leaf in the upper half is remarkably lax, with the marginal cells 
wide. In £. amphibolun the margin is more evidently denticulate 
for a greater distance below the apex; the areolation is decidedly 
less jax, and the marginal cells are distinctly narrower than the 
rest, often forming a kind of indistinct border, which is most evi- 
dent when the leaf is viewed under a low magnification. 
Miller has recently (Hedwigia, 37 : 251 1898) described a moss 
from Portorico under the name Vesicularia malachitica, with the 
characters, ‘“‘ monoica ; cespites latissime expansi planissimi aeru- 
ginosi teneri ; folia e cellulis pro foliolo majusculis laxis chloro- 
phyllosis utriculo primordiali repletis breviusculis reticulata, inte- 
gerrima. . . . E minutissimis Vesiculariis, minutie partium omnium 
€t colore malachitico primo visu distinguenda.”’ Miller quotes 
the synonym “ Hypnum Montagnei Hpe. in Musc. Portoricens. 
Schwaneckianis no. 41 ”’ for his plant. I have seen the type-speci- 
mens of /” malachitica in Miller’s herbarium, labelled ‘ Puerto 
Rico, Sierra de Lares, ad arbores, Feb. 3, 1887, Leg. Sintenis.”’ 
The moss is certainly Z. vesiculare Schwaegr., and is identical in the 
aeruginose color, habit, etc., with the plant sent out as part of 
number 720 in Wright’s Cuban mosses, under the name Hypuum 
Montagnei Schimp., and which Mitten (Musci Austro-Amer.) has 
wrongly referred to E. amphibolum. 
I have not seen the calyptra of the present species, and have 
therefore in the diagnosis given above repeated Schwaegrichen’s 
description. Montagne (in La Sagra, Hist. Cuba, Bot. 532) 
Says of the calyptra of “ Hypuum Montagnet” “ Calyptra mature 
decidua longe subulata, pallide viridis, stylo residuo coronata, basi 
hine breviter fissa.” 
Ectropothecium vesiculare Poeppigianum (Hampe). 
Hypnum Montagnei Schimp. ex Mont. in La Sagra, Hist. Cuba, 
- Bot. 530 (partim). 1842; et in La Sagra. Fl. Cub. 1: 315. pl. 
20. fig. I (partim). 1853. 
Flookeria Poeppigiana Hampe, Icon. Muse. pl. 4. 1844. 
Hypnum Poeppigianum Hampe ex C. Mill. Syn. 2: 235 (sect. 
malia, subsect. Vesicularia) 1851. 
