GLOSSARY. 



Decumbent : reclined on the ground, the summit tending to rise. 



Decurrent (leaves) : prolonged on the stem beneath the insertion. 



Decussate: arranged in pairs which successively cross each other. 



Definite: when of a uniform number, and not above twelve or so. 



Defiexed : bent downwards. 



Dehiscence : the mode in which an anther or a pod regularly bursts or splits 



open. 

 Dehiscent : opening by regular dehiscence. 



Deliquescent : branching off so that the stem is lost in the branches. 

 Deltoid : of a triangular shape, like the Greek capital A. 

 Demersed: growing below the surface of water. 

 Dendroid, Dendritic: tree-like in form or appearance. 

 Dentate: toothed (from the Latin dens, a tooth). 

 Denticulate : furnished with denticulations, or very small teeth : diminutive 



of the last. 

 Depauperate (impoverished or starved) : below the natural size. 

 Depressed: flattened, or as if pressed down from above; flattened vertically. 

 Descending: tending gradually downwards. 

 Dextrorse: turned to the right hand. 

 Di- (in Greek compounds) : two, as 



Diddelphous (stamens) : united by their filaments in two sets. 

 Didndrous: having two stamens. 

 Diaphanous : transparent or translucent. 

 Dichlamydeous (flower) : having both calyx and corolla. 

 Dichdtomous : two-forked. 



Diclinous : having the stamens in one flower, the pistils in another. 

 Dicdccous (fruit) : splitting into two cocci, or closed carpels. 

 Dicotyledonous (embryo) : having a pair of cotyledons. 

 Didymous: twin. 

 Didynamous (stamens) : having four stamens in two pairs, one pair shorter 



than the other. 

 Diffuse: spreading widely and irregularly. 

 Digitate (fingered) : where the leaflets of a compound leaf are all borne on 



the apex of the petiole. 

 Digynous (flower) : having two pistils or styles. 

 Dimerous: made up of two parts, or its organs in twos. 

 Dimidiate: halved; as where a leaf or leaflet has only one side developed, 



or a stamen has only one lobe or cell. 

 Dimorphous: of two forms. 

 Dioecious, or Dioicous: where the stamens and pistils are in separate flowers 



on different plants. 

 Dipetalous : of two petals. Diphyllous : two-leaved. Dinterous: two-winged. 

 Disciform or Disk-shaped : flat and circular, like a disk or quoit. 

 Disk: the face of any flat body; the central part of a head of flowers, like 



the Sunflower, or Coreopsis, as opposed to the ray or margin; a fleshy 



expansion of the receptacle of a flower. 

 Dissected : cut deeply into many lobes or divisions. 

 Dissepiments : the partitions of an ovary or a fruit. 

 Distichous: two-ranked. 



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