PLATE I.
{Pig. I /rom a Specimen lent by Mr. Howse, the rest from Schimper'’s work.)
F i g . I .— Prothallium with young plant.
„ i.—sph. cymbifolium. Vertical section of stem, passing also through two leaves
and the base of a branch fascicle.
!j 3 -—Ditto. Transverse section showing the pith or axile cells, the indurated peripheral
layer, and the four strata of cuticular cells.
I) 4-— C e lls o f p ith . F i g . 5.— D i t to o f w o o d y la y e r . F i g . 6.— D i t to o f cu t ic le .
» 7 '— Cells of a branch leaf of Sph. cymbifolium.
„ 7ar.—Transverse section of a leaf of Sph. squarrosum.
„ 8 .—Cells of a branch leaf of Sph. acutifolium seen from the back.
„ 8x.—Transverse section of same.
„ 9.— M a le in f lo r e s c e n c e o f Sph. cymbifolium. F ig . 10.— R ip e an th e r id ium w ith
p a ra p h y s e s .
„ 11.—Vertical section of a capsule still enclosed in the calyptra. c, calyptra; s, cavity
of spore sac ; p, pedicel of capsule.
„ 12.—Macrospores. F ig . 13.—Microspores.
PI . 1 .
llil