40 



Digitate. Said of an arrangement, as of 



leaflets, suggestive of the fingers of one's 



hand. 



Dimorphous. Of two forms. 

 Dioecious. With staminate and pistillate 



flowers on different plants. 

 Discoid. Resembling or pertaining to a 



disk. 

 Disk. A development of the receptacle of 



some flowers at the base of a pistil. 

 Dissepiment. The partition of an ovary or 



capsule. 



Distichous. Arranged in two vertical ranks. 

 Distinct. Separate from each other. 

 Divaricate. Widely divergent. 

 Dorsal. Pertaining to the back, as of the 



outer angle of a carpel. 

 Drupaceous. Resembling a drupe. 

 Drupe. A simple indehiscent fruit with 



fleshy exterior (pericarp) and bony 



usually 1-seeded interior (endocarp) ; as 



a plum or peach. 

 Drupelet. Diminutive of drupe. 

 Duct. An elongated cell or tube found in 



woody stems. 



Echinate. Covered with prickles. 

 Eglandular. Without glands. 

 Elliptical. With the outline of an ellipse. 

 Emarginate. Slightly notched at apex. 



Embryo. The rudimentary plant while in 

 the seed. 



Endocarp. The inner portion of a pericarp. 



Endogenous. Said of the stems of plants 

 which increase in thickness by a growth 

 within not external layers. 



Entire. Said of leaves, etc., when the mar- 

 gin is not notched or toothed. 



Epicarp. The thin outer layer of a peri- 

 carp. 



Epigynous. Borne upon the ovary. 



Epipetalous. Borne upon the petals. 



Epiphyte. Said of plants growing upon 

 other plants but not deriving nourish- 

 ment from them. 



Equitant. Astride. Said of leaves which 

 enfold each other in two ranks. 



Erose or Erroded. Irregular, as though 

 gnawed. 



Exalbumenous. Without albumen. 



Excurrent. Extending beyond the apex. 



Exfoliating. Cleaving off, as of the outer 

 layers of bark. 



Exocarp. The outer layer of a pericarp. 



Exogenous. Said of stems which increase 

 in thickness by the growth of layers out- 

 side of the wood and inside of the bark. 



Exserted. Projecting b-eyond the surround- 

 ing organs. 



