Definition of Pteridosperms

1. Noun. (plural of pteridosperm) ¹

¹ Source: wiktionary.com

Definition of Pteridosperms

1. pteridosperm [n] - See also: pteridosperm

Pteridosperms Pictures

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Lexicographical Neighbors of Pteridosperms

pterid-
pteridine
pteridines
pterido-
pteridological
pteridologies
pteridologist
pteridologists
pteridology
pteridomania
pteridophyte
pteridophytes
pteridophytic
pterin
pterinic
pterins
pterion
pterions
ptero-
pterocarpan
pterocarpans
pterodactyl
pterodactylane
pterodactyls
pterophore
pterophores
pterophyte

Literary usage of Pteridosperms

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, Literature and (1911)
"Ferns " and pteridosperms are even more strongly represented than before, and this is the age in which the supposed ..."

2. The Encyclopedia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1911)
"Ferns " and pteridosperms are even more strongly represented than before, ... of plants to which the name pteridosperms has recently been assigned—plants ..."

3. Geology, Physical and Historical by Herdman Fitzgerald Cleland (1916)
"The important difference between these families lies in tht reproduction, the true fern producing spores and the pteridosperms, seeds. FIG. 468. ..."

4. The Evolution of Plants by Dukinfield Henry Scott (1911)
"This is the gap below the pteridosperms. How were these plants derived from Ferns ... These are questions which may never be fully solved, for pteridosperms ..."

5. The Plant World by Plant World Association, Wild Flower Preservation Society (U.S.) (1916)
"Among the pteridosperms we have the typical ... It is true that the pteridosperms do clearly indicate the character of the ancestral stock that leads to ..."

6. Botanical Gazette by University of Chicago, JSTOR (Organization) (1907)
"It discusses the bearing of recent investigations of the pteridosperms and cycads on the origin of seed-plants. Attention is called to the fact that the ..."

7. The Origin of a Land Flora: A Theory Based Upon the Facts of Alternation by Frederick Orpen Bower (1908)
"The question is mainly one of the state of advancement reached by any given fossil, for it may be presumed that the pteridosperms sprang ultimately from a ..."

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