![The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. FlG. 227.—Cibotium Memiesii. A, Pinnule with the sori is), X3; B, a single sorus showing the two-valved indusium, The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. FlG. 227.—Cibotium Memiesii. A, Pinnule with the sori is), X3; B, a single sorus showing the two-valved indusium,](https://c8.alamy.com/comp/RDFBH4/the-structure-and-development-of-mosses-and-ferns-archegoniatae-plant-morphology-mosses-ferns-flg-227cibotium-memiesii-a-pinnule-with-the-sori-is-x3-b-a-single-sorus-showing-the-two-valved-indusium-x9-c-a-single-sporangium-x80-r-the-annulus-d-a-paraphysis-x8o-dium-less-so-in-schiscea-where-the-sporangia-are-smaller-and-the-mother-cells-project-much-more-strongly-the-early-divi-sions-correspond-closely-with-those-of-the-hymenophyllaceas-and-as-there-the-tapetum-is-massive-and-two-layered-and-the-stalk-of-the-sporangium-very-short-the-wall-is-derived-in-the-di-RDFBH4.jpg)
The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. FlG. 227.—Cibotium Memiesii. A, Pinnule with the sori is), X3; B, a single sorus showing the two-valved indusium,
![Fossil plants : for students of botany and geology . Paleobotany. 376 FILICALES [CH. of Polypodiaceous ferns. On the other hand, as we have already noticed, anatomical characters of such families Fossil plants : for students of botany and geology . Paleobotany. 376 FILICALES [CH. of Polypodiaceous ferns. On the other hand, as we have already noticed, anatomical characters of such families](https://c8.alamy.com/comp/RDF4MW/fossil-plants-for-students-of-botany-and-geology-paleobotany-376-filicales-ch-of-polypodiaceous-ferns-on-the-other-hand-as-we-have-already-noticed-anatomical-characters-of-such-families-as-the-gleicheni-aceae-hymenophyllaceae-and-schizaeaceae-are-met-with-in-certain-generalised-palaeozoic-types-these-facts-are-perhaps-of-some-importance-as-supplying-collateral-evidence-in-favour-of-the-relatively-more-recent-origin-of-the-dominant-family-of-ferns-in-modern-floras-the-use-of-the-generic-name-adiantites-for-fern-like-fronds-of-lower-carboniferous-age-characterised-by-cuneate-fi-RDF4MW.jpg)
Fossil plants : for students of botany and geology . Paleobotany. 376 FILICALES [CH. of Polypodiaceous ferns. On the other hand, as we have already noticed, anatomical characters of such families
![A manual of zoology. Zoology. 17. CTENOPEORA. 261 (fig. 208) and Sderoxjhylla (fig. 207) are solitary. Others, like Oculma* branch, and still others form compact masses. Astrangia danae (fig. 214), the A manual of zoology. Zoology. 17. CTENOPEORA. 261 (fig. 208) and Sderoxjhylla (fig. 207) are solitary. Others, like Oculma* branch, and still others form compact masses. Astrangia danae (fig. 214), the](https://c8.alamy.com/comp/RE09EY/a-manual-of-zoology-zoology-17-ctenopeora-261-fig-208-and-sderoxjhylla-fig-207-are-solitary-others-like-oculma-branch-and-still-others-form-compact-masses-astrangia-danae-fig-214-the-only-true-coral-in-new-england-astrora-the-brain-corals-coeloria-fig-215-diploria-manicina-cladocora-fig-216-favia-fig-217-fig-218madrepora-erythrltea-after-klunzinger-2-fdngiacea-or-mushroom-corals-with-no-outer-wall-to-the-coral-some-are-colonial-others-fungia-are-solitary-a-sort-of-strobilation-in-de-velopment-3-poeosa-with-skeleton-porous-like-a-fi-RE09EY.jpg)