pteridophyte

Etymology
From.

Noun

 * 1) Any plant of the division, 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.
 * 1) * 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.
 * 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.

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