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They perform the same functions and bear spicules, sometimes in pairs, sometimes quaternate, each spicule being surmounted by a spore.

With this introduction we may state that the technical characters of the family are thus expressed:— Hymenium free, mostly naked, or, if enclosed at first, soon exposed; spores naked, mostly quaternate, on distinct spicules = Hymenomycetes.

In the flowering period I selected four plants with the largest number of quaternate and quinate leaves and destroyed all the others.

For brevity's sake all these cleft and ternate, double cleft and quaternate cotyledons and even the higher grades are combined under one common name and indicated as tricotyls.

Nearly all the individuals produced at least some quaternate leaves, and thereby showed the variety to be quite pure.