Glossary 



DIMID'IATE (dimidiatus, <dimidiare, halve), halved; e. g. of gills which reach half- 

 way to the stem; also of pileus when it is semi-circular in outline or nearly so; 

 as many Polyporei. 



DIMOR'PHIC, DIMORPHOUS (dimorphus, having two forms), existing in two distinct 

 forms. 



DIMORPHISM (dimorphus, having two forms), the property of existing under two 

 distinct forms. 



Disc, DISK (discus, a disk, trencher), (a) any flat circular disk-like growth ; (b) the 

 central portion of the upper surface of a pileus ; the cup-shaped or otherwise va- 

 riously shaped hymenial surface of a Discomycete. 



DIS'CIFORM, DIS'COID, Dis'coiDAL (discoides, disk-shaped), of a circular, flat form; 

 disk-shaped. 



DIS'COCARP (Gr. a disk, -f Gr. fruit), ascocarp in which the hynienium or disk 

 lies exposed while theasci are maturing as in Peziza, Morchella, etc. 



DISOOMYCE'TES (Gr. a disk, + Gr. fungus), a group of ascomycetous fungi in 

 which the hymenium is exposed ; the fruiting body is cupular, discoid or clavate, 

 and sometimes convoluted. 



DISCRETE' (discretus, distinguished, separated), distinct, not coalescent. 



DISSEC X TED (dissectus, pp. of dissecare, cut asunder, <dis, asunder, + secare, cut), 

 cut deeply into many lobes or divisions. 



DISSEPIMENTS (dissepimentum, a partition) dividing walls; partitions. 



DIS'TAL (dist(ance) -\- al), pertaining to the apex or outer extremity. 



DIS'TANT, (distans, ppr. distare, stand apart), far apart; of gills which have a wide 

 distance between them. 



DISTICHOUS (Gr. having two rows), disposed in two rows. 



DIVARICATE (divaricatus, pp. divaricare, spread asunder), separating at an obtuse 

 angle; diverging widely. 



DOR'SAL (dorsalis, <^dorsttm, the back) , pertaining to the back, literally on the upper 

 side. 



DOWN, fine, soft pubescence. 



E or Ex-, prefix signifying ''destitute of," "outside of," or "away from." 



EBE'NEOUS (ebeneus, of ebony, <^ebemts, ebony), black like ebony. 



EBUR'NEOUS (ebiirneus, of ivory, <^ebur, ivory), ivory-white. 



ECCENTRIC (Gr. out of the center), excentric. 



ECH'INATE (echinatus, set with bristles, prickly), furnished with stiff bristles. 



ECHIN'ULATE (echimtlus, dim. of echinus, a hedgehog), beset with short bristles. 



Ecro- (Gr. without, outside), prefix signifying "outside." 



ECTOBASID'IA (Gr. outside, + basidium), basidia placed on an exposed surface; not 



enclosed. 



EDEN'TATE (edentattis, toothless, pp. of edentare, render toothless), without teeth. 

 EFFUSED' (effusus, pp. effimdere, pour cut), spread over without regular form. 

 EFFU'SO-REFLEXED', effused with upper margin reflected forming a pileus. 

 EGG (ovum, an egg>, a young plan tbefore rupture of the volva in Phalloids, Aman- 



itas, etc. 



EGUTT'ULATE, not containing guttulae. 

 ELLIPSOID (Gr. ellipse, + Gr. form), a solid figure all plane, sections of which 



are ellipses or circles. 

 ELLIPSOI'DAL, shaped like an ellipsoid. 



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