GLOSSARY 



343 



Deciduous, not persistent, not 

 evergreen. 



Decompound, more than thrice 

 compound or divided. 



Decurrent (leaf ), extendingdo wn 



the stem below the insertion. 

 Decussate, alternating- in pairs 



at right angles. 

 Dehiscent, opening regularly by 



valves, slits, &c., as a capsule 



or anther. 



Dentate, toothed, usually with 

 the teeth directed outward. 



Di-, DiS", a Greek prefix signi- 

 fying two or twice. 



Diadelphous (stamen), filaments 

 combined in two sets, anthers 

 remaining free. 



Diandrous, having two stamens. 



Dicarpellary, composed of two 

 carpels. 



Dichogamous (flower), stamens 

 and pistil mature at different 

 times. 



Dichotomous, forking regularly 

 by pairs; true, when the bud 

 is divided into two parts; 

 false, when the terminal bud 

 is aborted and two lateral 

 buds, one on either side, grow 

 {dichasium). 



Diclinous, having only stamens 

 or pistil, not both. 



Dicotyledonous, having two coty- 

 ledons. 



Didymous, twin, found in pairs. 



Didynamous (stamens), in two 

 pairs of unequal length. 



Diffuse, widely or loosely spread- 

 ing. 



Digitate, compound, with the 

 members arising together at 

 the apex of the support, and 

 the outer members forming 

 acuteanglcs with the support. 



Dimerous (flower), having all 

 the parts in twos. 



Dimorphous, occurring in two 

 forms ; usually applied to 

 flowers in which stamens and 

 styles are of two different 

 lengths. 



Dioecious, unisexual, with the 

 two kinds of flowers on sepa- 

 rate plants. 



Discoid, resembling a disk. 



Disk, a de\elopment of the re- 

 ceptacle at or around the base 

 of the pistil. 



Dissected, cut or divided into 

 numerous segments. 



Dissepiment, a partition in an 

 ovary or fruit. 



Distichous, in two vertical ranks. 



Distinct, separate, not united, 

 evident. 



Divaricate or Distractile, widely 

 divergent. 



Divided, lobed to the base. 



Dorsal, upon or relating to the 

 back or outer surface of an 

 organ. 



Dorsiventral, with distinction of 

 back and front, or placed with 

 reference to the back and 

 the front. 



Drupaceous, resembling or of 

 the nature of a drupe. 



Drupe, a fleshy or pulpy fruit 

 with the inner portion of the 

 pericarp (one-celled and one- 

 seeded, or sometimes several- 

 celled) hard or stony. 



Drupelet, a diminutive drupe. 



E- or ex-, a Latin prefix having 

 often a privali\e significa- 

 tion, as ebracteate, without 

 bracts. 



Ecological, concerning the re- 

 lation of plants to their sur- 

 roundings. 



