Cannabaceae

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Light microscopy of Polysiphonia showing a tetraspore within a tetrasporophyte cell. A=Tetraspore, B=Tetrasporophyte cell.Scale bar = 0.02 mm

Tetraspores are red algae spores produced by the tetrasporophytic (diploid) phase in the life history of algae in the Rhodophyta as a result of meiosis.[1] The name is derived from the 4 spores that form after this meiosis, the division is of three kinds: cruciate, zonate and tetrahedral.[1]

References

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  1. ^ a b Jones, W.E. Revised and reprinted 1964. A Key to the genera of the British seaweeds.Field Studies. Vol 1 (4) pp.1 – 32


source: https://en.wikipedia.org/wiki/Tetraspore

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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