GLOSSARY 747 
Den'TrATE.—Having broad, acute, marginal teeth pointing outward. 
Dentic’ULATE.—Finely dentate. 
DermAt’oceN.—The generative tissue that gives rise to epidermis. 
DertTER’MINATE.—Applied to inflorescences on which flowering begins with the ter- 
minal] bud, thus ending the elongation of the stem bearing the flowers. 
D1AvEL’pHous.—Applied to stamens whose filaments are united at their edges into 
two sets. 
DrAcGeor’Rropic.—Applied to a plant organ that assumes a horizontal position. 
DrAn’pRous.—Possessing two stamens. 
Dr’AstAse.—A ferment found in germinating seeds and fungal hyphae which changes 
starch into maltose. 
DicuLAMyp’£0us.—Pertaining to flowers that possess both calyx and corolla. 
Dicuoc’AMy.—The maturation of one set of sexual organs before the other. 
Dicuot’omous.—F orked. 
Dic’L1Nous.—Pertaining to the stamens and carpels being found in separate flowers. 
Dicor’yLe’pon.—A plant whose embryo possesses two seed leaves or cotyledons. 
Dic’1raTe.—Referring to a compound leaf whose leaflets come off at the end of the 
petiole. 
Dimor’puisM.—Having two forms of flowers, one with long styles and short stamens, 
the other with short styles and long stamens; the occurrence of two distinct 
forms. 
Dic:/crous.—Applied to species having two kinds of individuals, male and female. 
DissEct’ED.—Cut deeply into numerous divisions. 
DissEPi’MENT.—A partition separating cavities in a compound ovary or fruit. 
Dis’r1cHous.—Pertaining to the arrangement of leaves in two rows. 
Drvi’pEp.—Segmented to the mid-rib or base.. 
DorstvEN’rRAL.—Having distinct upper and lower surfaces. 
Dor’sum.—The back of an organ. The lower surface of a foliage or floral leaf. 
Down’y.—Covered densely with soft hairs. 
Drupe.—A one-celled, one-seeded fruit whose endocarp is stony. 
Drupe’Let.—A small drupe. ; 
Ducr.—A tubular element found in the xylem region of a vascular bundle. See 
trachea. 
Dura’MEN.—Heartwood. 
E- or Ex-, a prefix meaning devoid of, outside of, or away from. 
Eccen’tric.—Deviating from the center. Applied to the hila of starch grains 
which are outside of the center, also to woody plants which develop more — 
rapidly on one side than on the other. ; 
Ecuin’uLATE.—Beset with small prickles or spines. 
Ecu’InATE.—Beset with prickles or spines. 
Ec’roptAsm (Outer Plasma Membrane). 
limiting layer of the cytoplasm. 
Eoc-AppARA’TUs.—The ovum and two 
embryo-sac. 
ELABORATED SAP. 
cells of leaves which 
istributed to needing it. 
sitios eds which stores oil or fat. 
—The specialized, non-granular, outer 
synergids at the micropylar end of the 
The nutrient solution of grape sugar, etc. yanriefactared tn the 
passes downward through the phloem region to be 
