GLOSSARY OF THE PRINCIPAL TERMS 

 EMPLOYED. 



Anaphyses Filaments springing from the upper inner surface of the 



hypothecium. 



Applicate Forming the thalline border in many crnstaceous lichens. 

 Arthrosterigntata Jointed, sterigmata. 



Axial Composed of the basal but enclosed filaments of the axis. 

 Basidia The filaments bearing stylospores. 

 CepJialodla Tubercles containing gonimia. 

 Cortex The limiting tissue of the thallus. 

 Cretaceous Consisting chiefly of oxalate of lime. 

 C'nisfaceous Forming a more or less thickish crust, generally attached 



by the whole under surface. 



Cyphella Minute empty cavities on the underside of the thallus. 

 Determinate With a distinct margin. 

 Discoid More or less basin-shaped. 

 Effuse -Without a clearly defined outline. 

 Endosp'ire Inner layer of wall of spore. 

 Epiyore Outer layer of wall of spore. 

 Epithallus The external layer of the cortex. 

 Epitliecium The surface of the hymenium. 



Evanescent Reduced to mere gonidia scattered over the substratum. 

 Exciple proper The hypothecium of a discoid apothecium. 

 Gonidia The green cells of the thallus. 

 Gonidimia Green cells smaller than gonidia and with the cell-wall less 



distinct. 



Gonimia Bluish-green naked granules. 

 Heteromerous With the constituent elements stratified. 

 Homccomcrous -'With the constituent elements more or less mixed. 

 Hymenial gelatine The colourless amyloid substance permeating the 



hvmeniuin. 



Hymenium The layer of thecre and paraphyses. 

 Hypophkeodal Consist! g of a very thin film often concealed beneath 



the bark of trees and between the interstices of rocks. 

 Hypophylline Consisting of the root-like filaments or rhizinae. 

 Hypothallu-sThe basal tissue, being hypophylline, applicate, and axial. 

 Hypothecium The fundamental structure bearing the fructification. 



