AZOLLA AND SALV1NIA. 



571 



sequently crowning the (yellow) sac. Analo- 

 gy with Azolla ? 



PI. CXXIV. f. III. 2. Vertex of the (yellow) sac of the same. 



PI. CXXVII.f. II. 3. Another surface of the same, intended to 

 represent the cellular appearance. 



(Sahinia verticillata and cucullata, the completion of the development 

 of the spherical mass- containing secondaries, and the perfect state 

 of the (yellow) sac- containing secondary capsules of the first species.) 



PI. CXXVII. f. III. 3. 3. Spherical mass-containing secondaries at 

 the time when the trifacials become contain- 

 ed in grumous projections from the inner 

 surface of the secondary capsules, which 

 projections subsequently coalesce into a 

 mass. 



PI. CXXIV. f. IV., 1. Capsule containing the indefinite, simply 

 pedicellate, spherical, mass- containing se- 

 condaries. 



„ f. IV.,2. The same opened naturally. 



,, f. IV.,3. Some of the secondary capsules and part of 



the receptacle, 

 „ f. I V., 4. Superficial view of one of the secondaries. 

 „ f. IV.,5. Another view of the same ; centre in focus. 

 „ f. IV.,6. Portion of the secondary capsule, shewing 



the separation of the component cells. 

 „ f. IV.,7. A mass. 



„ f. IV., S. The same under pressure, to shew the im 

 bedded trifacial cells or spores. 

 PI. CXXIII.f. III.,c. A nearly mature sac-containing secondary 

 capsule. 



„ f. lll.yd.d. Contents of the same. 



., f. III. ,6. Another view, shews the central attaching 

 (?) process between the lobes of the vertex. 



„ f. HI.,0. Same, (vertex in view,) lobes somewhat dis- 

 placed to shew the triliueal mark. 

 PI. CXXIV. f. I., I. Mature capsule. 



„ f. I. ,2. Same, long section. 



„ f. i.,8. Contents of the same. 



