310 GLOSSARY 



to describe the surface of the twigs of some of the Abies. 



Synonyms : Fissured, Furrowed. 

 Cortex (cortex = bark). The bark or rind of an exogenous 



tree. 

 Corymb (corymbus = cluster). An inflorescence, or flower 



cluster, with lower stalks (or so-called pedicels) growing 



from a common central foot-stalk (or so-called rachis), 



lengthened so as to form a level head. 

 Cylindrical (Gk. kylindein = to roll). A long, circular 



body, sohd or hollow, of uniform diameter. 

 Deciduous (de = from ; cadere = to fall). AppUed to a 



tree that sheds its leaves annually. 

 Decumbent (de — down; cumbere = to lie). Lying down. 

 Decurrent (de = down ; currere = to run). Apphed to a 



leaf extended down or clinging for part of the way to the 



stem. 

 Decussate (decussare = to cross and put into the form of an 



X). Apphed to leaves and branchlets arranged in pairs, 



and alternately crossing each other, or growing out at 



different angles from main stem or leaf stalk like the leaf, 



e.g. a Veronica. 

 Dehiscent (dehiscere = to gape). AppUed to a cone that 



opens and discharges its seed at maturity. 

 Dentate (dens = tooth). Vide Margins. 

 Descending (de = down, scandere = to climb). Moving or 



incUning downwards. 

 Dicecious (Gk. di = twice ; oikos = house). Vide Monoecious. 



Plants that have the male flower on one plant and the 



female on another. 

 Disk or Disc (Gk. diskos = a round plate). Apphed to the 



round scar left after puUing off leaves of the Abies, or 



Silver Firs. 

 Distichous (Gk. dis = twice ; stichus = a line). AppUed to 



leaves arranged oppositely and in two rows. 

 Divaricate (dis = asunder ; varicare = to spread) . AppUed 



to branches that diverge. 

 Dorsal (dorsum = the back). 

 Dorso-ventral (dorsum = the back of human frame ; 



venta = abdomen or frontal part of human frame. 



AUuded to as Dorsal and Facial. AppUed to leaves 



