218 GLOSSARY 



Diandrous. Possessing two stamens. 



Dichotomous. Bi-forked equally and regularly. 



Dicotyledonous. Possessing two cotyledons. 



Didymous. Twin-like. 



Didynamous. Stamens in two pairs of unequal length. 



Diffuse. Loosely and much spreading. 



Digitate. Diverging, like spreading fingers. 



Dimorphous. Two-formed. 



Dioecious. Bearing male and female flowers on different plants. 



Discoid. Disk-like ; a flower head with none but rayless flowers. 



Disk. A developed receptacle at or around the base of the pistil, especially 



the enlarged receptacle on which the numerous flowers are borne in 



Compositae. 

 Disk flowers. The central flowers in the head in Compositae, as distinguished 



from the marginal flowers. 

 Dissected. Divided into numerous segments. 

 Distichous. Arranged in two vertical ranks. 

 Distinct. Apparent ; not united. 

 Divaricate. Widely spreading. 

 Divided. Cut to the base or mid-nerve. 

 Dorsal. Pertaining to the back. 

 Drupaceous. Drupe-like. 

 Drupe. A fleshy usually simple fruit with exocarp fleshy and endocarp 



stony. 

 Drupelet. Diminutive of drupe. 



Echinate. Prickly. 



Elliptical. Oval. 



Emarginate. With a shallow notch at the apex. 



Embryo. The rudimentary plant within the seed. 



Endocarp. The inner layer of the pericarp. 



Endogenous. Forming new tissue within instead of by superficial layers. 



Endosperm. The albumen of a seed. 



Entire. Without toothing, lobes or divisions. 



Ephemeral. Lasting less than a day. 



Epidermis. An outer covering. 



Epigynous. Growing on the upper part of the ovary. 



Epiphyte. An air plant. 



Equitant. Conduplicate distichous leaves. 



Excurrent. Eunning out beyond the main body. 



Exfoliating. Coming off in layers. 



Exocarp. The outer layer of the pericarp. 



Exogenous. Growing by new tissue formed outside the old. 



Exserted. Projecting beyond the surrounding organs. 



Exstipulate. Without stipules. 



Extrorse. Facing outward. 



Falcate. Scythe-shaped. 



Farinose. Covered with a meal-like powder. 



Fascicle. A close, dense bundle or cluster. 



Fastigiate. Erect stems or branches borne closely together. 



Ferrugi ous. Color of rust. 



