Glossary 



DEHIS'CENCE (dehiscen(t-}s, dehiscent), the spontaneous opening of a peridium at 

 maturity to discharge the spores. 



DEHIS'CENT (dehiscere, gape, open), a closed organ opening of itself at maturity or 

 when it has attained a certain development. 



DELIQUESCENT (deliquescere, melt away), relating to mushrooms which at maturity 

 become liquid or melt down. 



DELIMITATION (delimitare, mark out the limits, <de + limitare, limit, bound), the 

 marking, fixing <5r prescribing the limits or boundaries. 



DENDROID, DEN'DRIFORM (Gr. a tree, -f forma, form), tree-shaped. 



DEN'TATE (dentatus, tooth), toothed with a concave serrature. 



DENTICULATE (dcnticulatus, <^denticulus, a small tooth), finely dentate. 



DENU'DATE (denudatus, pp. of denudare, make bare, strip), naked; exposed, not im- 

 mersed. 



DEPRESSED' (depressus, pp. of deprimere, <de, down, + premere, press), as if pressed 

 down or flattened ; sunk below the level of the surrounding margin. 



DERMINI, a group of fungi with brown or rust-colored spores. 



DESCENDING (descindere, pp. descensus, come down, fall, <de, down, scandere, 

 climb), applied to a marginal veil when, in the young stage, its marginal attach- 

 ment is below the level of its stem-attachment ; a ring formed from it is called 

 superior; turned downward. 



DES'ICCATE, DESICCATED (desiccatus, pp. of desiccare, dry up, <^de, intensive, <^sic- 

 care, dry), dried. 



DETERMINATE (determinatus, pp. determinare, fix, limit), ending definitely; having a 

 distinctly defined outline. 



DETERMINATION (determinatio(n) , boundary, conclusion, end, determinare, pp. deter- 

 minatus, bound, determine), assignment to the proper place in a classification or 

 series. 



DIAGNOSIS (diagnosis, a distinguishing), scientific discrimination of any kind; a 

 short distinctive description, as of a plant. 



DIAPHANOUS (Gr. through, + to appear), of a transparent texture; permitting the 

 passage of light. 



DICHOT'OMOUS (Gr. in two, + to cut), dividing into two; regularly forked. 



DICHOTOMY (Gr. a cutting in two), a mode of branching by constant forking or 

 dividing in pairs. 



DID'YMOUS (Gr. double, twofold, twin), double; of two equal parts. 



DIFFERENTIATED (differentia, difference), exhibiting differentiation. 



DIFFERENTIATION (differentia, difference, + ation), (a) discrimination between by 

 observing or describing the differences ; (b) the evolutionary process or results by 

 which originally different parts or organs become differentiated or specialized in 

 either form or function ; specialization. 



DIF'FLUENT (diffluen(t-)s, ppr. oidiffluere, <dis, away, apart, -\-fluere, flow), readily 

 dissolving. 



DIF'FORM, DIFFORMED' (deformis, deformed), irregular in form, not uniform. 



DIFFUSE' (diffnsus, pp. of diffundere, pour in different directions, pour out, <^dis, 

 away, + fundere, flow), spreading widely, loosely and irregularly. 



DIG'ITATE (digitatus, having fingers or toes, <^digitus, finger), furnished with fingers ; 

 dividing like the fingers of the hand. 



DILA'TED (dilatare, spread out ; extend) , expanded ; enlarged. 



6/2 



