392 GLOSSARY 



intercalary. Occupying a position between other bodies in a row. 



karyogamy. See endokaryogamy. 



laciniate. Torn into a ragged form at the edge. 



rneiosis. 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. 

 metoecious. The same as hetercecious. 

 monophyletic. Descended from a single species or closely allied group 



df species. 

 pallid. Of the colour of fresh chamois leather. 

 paraphysis. A more or less thread-like organ which grows by the side 



of the s j lores. 

 plectenchyma. A kind of pseudo-parenchyma, formed by a mass of 



intcirw ined hyphse. 

 polyphyletic. I a-M-ended, in distinct lines, from widely different 



ancestors. 

 pulverulent. Having a powdery appearance from the loo>e >pores. 

 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 lines. 



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, i.e. covered with rounded elevation-. 

 verruculose. Covered with minute rounded elevations. 

 viable. Able to put forth a germ-tube. 



