PLATE I. 



i^Fig. I from a Specimen lent by Mr. Ifowse, the rest from Schimper''s work.) 



Fig. I. — Prothallium with young plant. 

 „ 2. — Sph. cymbijolittvt. Vertic.-xl ction of stem, passing also through two leaves 



and the base of a branch fascicle. 

 „ 3. — Ditto. Transverse section showing the pith or axile cells, the indurated pcri- 

 phcnil layer, and the four strata of cuticular cells. 

 -Cells of pith. Fig. 5.— Ditto of woody layer. FiG. 6.— Ditto of cuticle. 

 -Cells of a branch leaf of Sph. cymbifo '"in. 

 — Transverse section of a leaf of Sph. squarrosum. 

 -Cells of a branch leaf of Sph. acutifolium seen from the back. 

 — Transverse section of same. 



-Male inflorescence of Sph. cymbifolium. FiG. 10. — Ripe anthcridium with 

 paraphyses. 

 II. — Vertical section of a capsule still enclosed in the calyptra. c, calyptra ; J, cavity 



of spore sac ; p, pedicel of capsule. 

 12. — Macrospores. Fig. 13. — Microspores. 



