PLATE XVIII. 
SPHAGNUM ACUTIFOLIUM, Ehrhart. 
Fic. a.—Plant of the typical form. 
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1.—Part of stem with a branch fascicle. 
2.—Male inflorescence. Fic. 24.—Bract and antheridium from same. 
3.—Fruit and perichetium. Fic. 4.—Bract from same. 
5.—Stem leaves. FIG. 5 a@a.—Areolation of apex of same. 
6.—Leaves from middle of a divergent branch. 
6a6,—Areolation of base. FIG. 6%.—Transverse section. 
6f.—Point of same. Fic. 6c.—Cell from middle x 200, 
7.—Basal intermediate leaves. FIG. 8.—Leaf from a pendent branch. 
9ox.—Part of section of stem. 
10.—Part of a branch denuded of leaves. 
