Cyst (cystis, the bladder, bag, pouch), a bladder-like cell or cavity.

Cystid´ium (pl. Cystid´ia) (Gr—the bladder, + the dim. termination), sterile bladder cells of the hymenium, generally larger than the basidia cells between which and with which they are formed.

Dash, -, between two figures = to; from 2 to 4.

Daughter-cell, any cell when mentioned in relation to the one (mother-cell) from which it is derived.

Deal´bate (dealbatus, pp. of dealbare, whiten, white-wash, etc., < de + albare, whiten), as if white-washed; covered with very white opaque powder.

Decid´uous (deciduus, that falls down; < decidere, < de, down, + cedere, to fall), falling off at maturity or at the end of the season, not permanent; losing the foliage every year.

Decor´ticate, Decor´ticated (decorticatus, pp. of decorticare, < de, from, + cortex, bark), denuded of bark; destitute of a cortex or cortical layer.

Decum´bent (decumben(t-)s, ppr. of decumbere, lie down, < de, down, + cumbere, lie) applied to a stem having the lower part resting on the ground.

Decur´rent (decurren(t-)s, ppr. decurrere, run down), applied to lamellæ (gills) which are prolonged down the stem.

Decurved´ (decurve + ed, after decurvatus, curved back), curved downward; opposed to recurved.