PLATE XIII. 
SPHAGNUM RIGIDUM, Nees v. Esenb. 
Fic. @.—Fertile plant. Fic. 1—Part of stem with a branch fascicle. 
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3.—Fruit and perichetium. Fic. 4.—Bract from same. 
5.—Stem leaves. FIG. 5 2aa.—Areolation of apex of same. 
6.—Leaves from middle of a divergent branch. 
6aa.—Areolation of apex of same expanded. FIG. 6x.— Transverse section. 
Fic. 6f.—Point of same. Fic. 6¢.—Cell from middle x 200. Fic. 67.— 
Reticulation at back x 4oo. 
7.—Basal intermediate leaf. 
8.—Leaf from a pendent branch with an antheridium. 
ox.—Part of section of stem. Fic. 10.—Part of a branch denuded of leaves. 
B.—Var. compactum. 
y.—Var. sguarrosum. 
