SALMON: SOME SPECIES OF EcTROPOTHECIUM 321 
Two other examples of “ AH. conostegum”’ occur in Miiller’s 
herbarium. The first, which is labelled ““ Hypnum conostegum C. 
M. Cuba, decayed logs in forests, Wright n. 120 = Hl. Montagnei 
Sch. ex C, M.,” quite agrees with the plant collected in Cuba by 
Doring, and, like that, often shows an approach in the shape of the 
branch-leaves to Z. vesiculare type. It is of interest to note, how- 
ever, that the main stem of some of these specimens is often thick, 
especially towards the apex, and that the apex of the branches is 
often incurved, and also that the points of the dorsal and lateral 
leaves of both stem and branches are slightly decurved, so that the 
stems have a very different appearance viewed from above and 
below. 
The second example is labeled “H. conostegum m. St. Do- 
mingo in monte ‘Isabel de la torre,’ 600 m. alt. 3.7.87 leg. 
Eggers.” This also has rather thick stems, with the points of the 
leaves decurved. It is, however, like the other example, clearly 
the same plant as Hampe's Hookeria Poeppigiana, in the type-speci- 
men of which the same leaf-characters are sometimes observable. 
With regard to the shape of the operculum — “ operculum 
lurgide conicum acutum’’— advanced by Miller asa distinguishing 
character, it may be noted here that, as Montagne (in La Sagra, 
Hist. Cuba, Bot. 5 32) has already pointed out, the operculum 
of the present plant is zz ‘he dry state apiculate or mucronate, but 
becomes conical acuminate on being moistened (‘operculum in 
statu sicco plus minus longe apiculatum vel mucronatum, humecto 
vero conico-acuminatum’), The FIGURES Ig and 20 which I 
have given on PLATE 14 show the change which takes place in the 
Shape of the operculum. 
It must be noted here that Miiller quotes in the Synopsis, under 
H. conostegum the locality ‘ Portorico: Bertero,” and remarks 
“ Leskea (Omatia) rutilans 3 Portoricensis Brid. 11, p. 332 € spec. 
imperfectis Hb. Brid, forma flaccidior videtur.” I have seen the 
type of Bridel’s plant above referred to;—the sheet bears the 
label, in Bridel’s handwriting, ‘2. Omalia rutilans 8 Portoricensis 
Bryol. Univ. Prerigophyllum pendulum N. L. Omalia Portoricensts 
Bryol. Univ. In Porto Ricco ad saxa et arbor. Balbis Lyon 
1820.” On the sheet, above the specimens, Miller has written 
“ Acosta conostega mihi videtur.”’ Now this plant of Bridel’s from 
Porto Rico, of which a fair, fruiting example still exists in his her- 
