Glossary 



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



maturity to discharge the spores. 

 DEHISCENT (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 -f limitare, limit, bound), the 



marking, fixing or prescribing the limits or boundaries. 

 DEN'DROID, DEN'DRIFORM (Gr. a tree, + L. forma, form), tree-shaped. 

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

 DENTICULATE (denticulatus, <^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, <cte, 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. 

 DESICCATE, DES'ICCATED (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(ii) , 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. 

 DIAPH'ANOUS (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, -f 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. ofdifftuere, <^dis, away, apart, -f fluere, flow), readily 



dissolving. 



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

 DIFFUSE / (diffusus, pp. of diffnndere, pour in different directions, pour out, <idis, 



away, -f fnndere, flow), spreading widely, loosely and irregularly. 

 DIGITATE (digitatus, having fingers or toes, <^digitus, finger), furnished with fingers ; 



dividing like the fingers of the hand. 

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



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