MOSSES AND LIVERWORTS. 193 
cells of the lower part of the leaf; 9, cells of the upper part of the leaf; 10, 10, 10, capsules ; 
11, operculum ; 12, portion of the peristome ; 13, vaginula; 14, sterile plant; 15, apex of the 
same, enclosing thesterile flower; 16, antheridium, paraphyses, and perigonial leaf; 17, 17, 
cross sections of stem leaf; all magnified, except figs. 1 and 2. 
Figures 2 and 14 are inverted through a mistake of the engraver. 
Prate VI.—JBryum Californicum. 
Fig. 1, plants of the natural size; 2, a single plant; 3, stems and branches; 4, a branch; 
5, 5, 5, 5, 5, leaves; 6, cross sections of leaf; 7, a leaf showing the areolation ; 8, portions of 
peristome and annulus ; 9, vertical section of the same ; 10, 10, 10, capsules ; all magnified, ex- 
cept fig. 1. 
了 PLATE VII.— B ryum Occidentale. 
Fig. 1, 1, fertile plants ; 2, sterile plant, all of the natural size; 3, a fertile plant; 4, 4, 4, 
leaves; 5, base of leaf and portion of branch, showing their juncture; 6, 6, cross sections of 
leaf; 7, 8, base and apex of leaf, showing the areolation ; 9, cells of the lower part of the leaf ; 
10, cells of the upper part of the leaf; 11, portions of peristome and annulus, outside view ; 12, 
vertical section of the same; 13, 13, capsules; 14, capsule when dry; 15, vaginula ; 16, sterile 
plant; 17, sterile flower ; 18, perigonial leaf, antheridium and paraphyses ; 19, perigonial leaf ; 
20, antheridum and paraphyses ; all magnified, except figs. 1 and 2. 
Pra VIII.— 7901000 0. 
Figs. 1, 1, fertile plants; 2, a sterile plant, all of the natural size ; 3, fertile plant; 4, portion 
of a branch ; 5, 5, 5, leaves; 6, apex of leaf showing the areolation ; 7, cells of the same ; 8; 
base of leaf showing the areolation; 9, cells of the same; 10, 11, 12, capsules, opercula, and 
calyptra ; 13, portions of the peristome and annulus; 14, a tooth of the peristome, side view; 
15, perichztium ; 16, I6, perichetial leaves; 17, vaginula with archegonia and paraphyses; 
18, sterile flower ; 19, antheridium, paraphyses, and perigonial leaf; all magnified, except figs. 
1 and 2. 
Pare IX.— Hypnum. Whippleanum. 
Figs. 1, 1, 1, fertile plants; 2, sterile plant, all of the natural size; 3, fertile plant; 4, por- 
tion of sterile plant; 5, portion of a branch; 6, 6, 6, 6, stem and branch leaves; 7, 7, lower 
portion of leaves showing the areolation ; 8, 8, upper portion of same, showing the areolation ; 
9, 9, 9, 9, 9, capsules; 10, 10, opercula; 11, portion of the peristome; 12, perichetium ; 13, 
vaginula; 14, 15, perichetial leaves; 16, portion of the pedicel ; 17, sterile fiower ; 18, anthe- 
ridium and paraphyses ; 19, perigonial leaf; all magnified, except figs. 1 and 2. 
Pra X.— Hypnum calyptratum. 
Figs. 1, 1, 1, 1, plants of the natural size; 2, portion of a plant; 3, portion of a branch ; 4, 
4, leaves; 5, a leaf showing the areolation ; 6, portion of same; 7, cross section of leaf; 8, peri- 
cheetium ; 9, perichteial leaves; 10, 10, capsules with operculums and calyptras; 11, capsule 
with operculum ; 12, capsule; 13, calyptra; 14, portion of peristome; 15, sterile flower and 
perigonial leaves ; 16, antheridium ; all magnified, except fig. 1. 
2b r 
