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. 

 Deflexed': 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. 

 Demerged: 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. 

 Dich6tomous : two-forked. 



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

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

 Dicotyledonous (embryo) : having a pair of cotyledons. 

 Didt/mous: twin. 

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



than the other. 



Diffuse: spreading widely and irregularly. 

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



the apex of the petiole. 



Diyynous (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. 



Dipetahus: of two petals. Diphyllous: two-leaved. Dipterous: 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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