different between pteridophyte vs pterophyte
pteridophyte
English
Etymology
From pterido- (“fern”) +? -phyte (“plant”).
Pronunciation
- (Received Pronunciation) IPA(key): /t????d??fa?t/
- (General American) IPA(key): /t????d??fa?t/, /?t???d??fa?t/
Noun
pteridophyte (plural pteridophytes)
- Any plant of the division Pteridophyta, of simple vascular plants that reproduce via spores rather than seeds and that alternate generations of diploid (sporophyte) and haploid (gametophyte or prothallus) forms, the diploid generally being larger and more conspicuous.
- Ferns, lycopods, and scouring rushes are all pteridophytes.
- 1989, Douglas E. Soltis, Pamela S. Soltis, Chapter 12: Polyploidy, Breeding Systems, and Genetic Differentiation in Homosporous Pteridophytes, Douglas E. Soltis, Pamela S. Soltis (editors), Isozymes in Plant Biology, page 241,
- Most pteridophytes are homosporous, producing one type of spore that germinates to produce a potentially bisexual gametophyte.
- 1990, A. C. Jermy, Conservation of Ppteridophytes, K.U. Kramer, Klaus Kubitzki, P.S. Green, Pteridophytes and Gymnosperms, page 14,
- Pteridophytes have evolved to fill almost every ecological niche but the greatest species diversity is clearly found in the tropical rainforest. The rapid disappearance of this biome throughout the world with many of their pteridophyte species yet undiscovered, let alone described, is of great concern.
- 2004, Pooja, Pteridophyta, page 13,
- Pteridophytes are known from as far back as the Silurian, or some 380 million years ago. During the Silurian and the immediately succeeding Lower Devonian there were a considerable number of psilophytes of much simpler construction than any other known type of pteridophyte.
Synonyms
- (plant that reproduces via spores): cryptogam
Derived terms
- pteridophytic
Related terms
- pteridologist
- pteridology
Translations
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pterophyte
English
Etymology
ptero- (“wing, feather”) +? -phyte (“plant”)
Noun
pterophyte (plural pterophytes)
- (botany) Any fern (of division Pteridophyta).
pterophyte From the web:
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