GLOSSARY 



aculeate. Covered with needle-like projections. 



alveolate. Having depressions all over the surface, like a honeycomb. 



amphigenous. Growing upon both sides of a leaf. 



autcecious. Having all spore-fortns upon the same species of host. 



basipetal. Having each new part (e.g. spore) formed nearer to the base 



than the similar preceding one. 

 brachymeiosis. A modification of meiosis in which the separation 



of the chromosomes is not preceded by a contraction of the nuclear 



material, 

 capitate. Surmounted by a nearly globular head. 

 chlorenchyma. Parenchymatous tissue containing chloroplasts. 

 circinate. Arranged in a circle 

 cuneate. Tapering downwards, with straight sides. 

 dendritic. Having a branched form, like a tree. 

 denticulate. Provided with small teeth-like projections. 

 digitaliform. Having the shape of a finger of a glove. 

 echinulate. Covered with spiny projections, 

 ellipsoid. Having an oval outline, rounded equally at both ends. 

 endokaryogamy. The intracellular fusion of nuclei after a series of 



conjugate divisions. 

 epiphyllous. Growing on the upper side of a leaf. 

 erumpent. Bursting through the tissues of the host, and becoming 



superficial, 

 fusoid. Having the shape of a shuttle, tapering at each end. 

 gamete. A cell specialised for reproducing the species, by fusing with 



another gamete. 

 haustoria. Short mycelial branches which penetrate from the inter- 

 cellular -paces into the cells of the host, and absorb their nutritive 



contents, 

 hetercecious. Having some spore-forms upon one species of host and 



the others upon another species of a different genus. 

 hypophyllous. < Growing on the underside of a leaf. 

 infection. The successful attack of the mycelium upon the cells of the 



host. 

 inoculation. The entry of a germ-tube into a host-plant. 



