In the case of the microspores germination commences after the spores have fallen on to moist soil.
The number of microspores produced is very large, but only four megaspores are borne in each megasporangium.
The microspores are packed away in cases which are provided with curious barbed contrivances.
In the Scotch pine the microspores are ripe about the end of May.
Like the microspores of the smaller club mosses, a small cell is cut off from the body of the spore (x).
Base of a leaf and contained sporocarp filled with microspores cut across, magnified.
The large ones in germination produce a small prothallus; upon which the contents of the microspores act in the same way as in Ferns, and with a similar result.
Same divided lengthwise, equally magnified; some microspores seen at the left.
Microspores from sporangia of the upper part of the cone of Triplosporites Brownii, Brongn.
Microspores from the sporangia of the upper part of the cone of Triplosporites Brownii, Brongn.
The fructification is at the base of the leaf-stalks, and consists of sacs (sporocarps) containing spores of two kinds, microspores and macrospores.
With reference to the microspores of Salvinia, it is to be observed that the sporocarps, and the contained spores or antheridia, are very delicate and destitute of the dense outer wall of the macrospores.
The fruit is in scaly strobiles, terminal or lateral, and there are usually, if not always, macrospores and microspores in each strobile.
The sporocarps of the microspores contain a vastly greater number of minute sporangia, about one two-hundredths of an inch in diameter.
They are about a line in diameter when mature, and are of two kinds, one containing macrospores, the other microspores or antheridia.
These contain disc-like antheridia, or microspores of very minute size.
Here the ground is sufficiently solid, and, judged by ordinary laws of scientific evidence, the pathological importance of the microspores {997} may be regarded as established.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "microspores" in a variety of sentences. We hope that you will now be able to make sentences using this word.
