392 GLOSSARY 
intercalary. Occupying a position between other bodies in a row. 
karyogamy. See endokaryogamy. 
laciniate. Torn into a ragged form at the edge. 
meiosis. A special type of nuclear division by which the number of 
chromosomes in each daughter nucleus is reduced to half the number 
present in the nucleus before meiosis. 
metcecious. The same as hetercecious. 
monophyletic. Descended from a single species or closely allied group 
of species. 
pallid. Of the colour of fresh chamois leather. 
paraphysis. A more or less thread-like organ which grows by the side 
of the spores. 
plectenchyma. A kind of pseudo-parenchyma, formed by a mass of 
intertwined hyphe. 
polyphyletic. Descended, in distinct lines, from widely different 
ancestors, 
pulverulent. Having a powdery appearance from the loose spores. 
pulvinate. Having the shape of a cushion. 
punctate. Marked with little dots, like pin-pricks. 
punctiform. Having the form of a small pin’s head. 
reticulate. Covered with a network of liues. 
scrobiculate. Having the surface hollowed out into little shallow pits. 
semi-apogamy. A fusion of cells for reproduction, where one at least 
of the fusing cells is still more or less sexually specialised, but the 
cells are not of opposite sexes. If both cells represent female gametes, 
it may be called parthenogamy. 
trichogyne. A long hair-like projection from a female cell, suitable for 
arresting a passing male cell. 
truncate. As if cut off at the top, with rather square corners. 
verrucose. Warted, ie. covered with rounded elevations. 
verruculose. Covered with minute rounded elevations. 
viable. Able to put forth a germ-tube. 
