Pteridophyta (excepting Equisitaceæ and Isoetaceæ) of the northern. From Wordnik.com. [The Fern Lover's Companion A Guide for the Northeastern States and Canada] Reference
With regard to the relationship of the Bryophyta and Pteridophyta the article on the latter group should be consulted. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference
Thallophyta and on the other to the Pteridophyta lies even more in the region of speculation, on slender grounds without much hope of decisive evidence. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference
Flora of Japan, Vol. I: Pteridophyta and Gymnospermae. From Wordnik.com. [Biological diversity in Japan] Reference
Pteridophyta is one of the biggest divisions in the kingdom. From Wordnik.com. [CreationWiki - Recent changes [en]] Reference
Vascular Plants of the Hengduan Mountains, Vol. 1: Pteridophyta, Gymnospermae, Dicotyledoneae (Saururacea to Cornaceae). From Wordnik.com. [Biological diversity in the mountains of Southwest China] Reference
If we survey the fossils so far known in historical order, the following facts are ascertained: The earliest or primary period of the earth is the era of the Pteridophyta, the ferns, horsetails, and club-mosses; in the Triassic and Jurassic periods the gymnosperms prevail, and beginning with the cretaceous period the angiosperms. From Wordnik.com. [The Catholic Encyclopedia, Volume 11: New Mexico-Philip] Reference
Division: Pteridophyta. From Wordnik.com. [CreationWiki - Recent changes [en]] Reference
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