196 ON HEPATIC^ COLLECTED AT THE CAPE OF GOOD HOPE. 



of a brownish colour. Within the capsule is a slender columella, 

 round smooth spores, and short moniliform threads scarcely ex- 

 ceeding in length the diameter of the spores, 



DESCEIPTION OF PLATES. 



Plate IV. 



Fig. 1. Noioscyphiis variifoliiis. Stem, of the natural size. 



2. A portion of the same, with involucre, as seen at the side. Magnified. 



3. A portion of the stem with leaves and stipule. Also highly mag- 



nified, m 



4. Two stipules next to the involucre, still more enlarged. 



5. Anthoceros mimttus. Plants of the natural size. 



6. A portion, with involucres and fruit, surmounted by the minute calyptra. 



Magnified. 



7. A transverse section of a frond vnih. the central mass, which gives it a 



costate appearance. Also much enlarged. , 



8. Involucre laid open to show the pedicellate base of the capsule. ; 



Magnified. 



9. Spores and elater. Also greatly magnified. 



10. Fossambronia tumida. A stem, of the natural size. 



11. Apex of the 'stem, with leaves, perianth, and capsule, as seen laterally. 



Greatly enlarged, 



12. A single leaf, still more highly magnified. 



13. Spores, also greatly magnified: a, as seen vertically; and J, lateral 



view. 



Plate V. 



Fig. 1. Lindigina scariosa. Stem, of the natural size. 



2. A stem, as seen from above, and considerably enlarged. 



3. Apex of the same, more enlarged, and as se'en laterally with the descend- 



ing perigynium. 



4. A portion of the stem, with the leaves opened to show their combination 



on the upperside. Also very considerably enlarged. 

 , 6. Cellular structure of the leaves towards the vertical margin, under a 



higher power of the microscope. 



6. Cellular structure of the same towards the dorsal margin, also under a 



high power. 



7. Lindigina renifoUa, A stem, of the natux-al size. 



8. The apex, with leaves and descending torus of the same, as seen laterally, 



and considerably enlarged. 



9. A portion, more enlarged, of the stem, with leaves expanded. 



10. A leaf removed from the stem. 



11. The cellular structure of the leaf towards the ventral margin, under a 



high power of the microscope. 



12. A portion of the transverse section of the perigynium, showing the larger 



partially free cells composing its interior surface. Highly magnified. 



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