Glossary. 405 



Dehis'cence : definite mode of opening of capsules and anthers. Figs. 295- 

 297 and 321-326. 



Dehls'cent (L. dehiscere, to yawn) : splitting open in a definite' way. 



Del'toid: siiaped like the Greek letter A (delta). 



Den'tate (L. dens, a tooth) : toothed, usually with the teeth directed out- 

 ward. Fig. 230. Dentic'ulate : minutely dentate. 



Depau'perate (L. depauperatus, impoverished) : much reduced in size. 



Depressed' : somewhat flattened from above. 



Deter'minate : applied to the growth of stems where increase in length is 

 terminated by a winter bud; applied to inflorescences where flowering 

 begins with a terminal or inner bud, as in cymes. Fig. 82, v. 



Di-, dis- : Greek prefix signifying two or twice. 



Diadel'phous (Gr. di- + adelphos, brother) : said of stamens when combined 

 in two sets. Fig. 291. 



Dian'drous (Gr. di- + aner, andros, man) : having two stamens. 



Dicarp'ellary (Gr. di- + karpos, fruit) : composed of two carpels. 



Dichog'amy (Gr. dicha, asunder; gamos, marriage) : the condition of flowers 

 whose stamens and pistil do not mature simultaneously, preventing self- 

 fertilization. 



Dichot'omous (Gr. dicha + temnein, to cut) : forking regularly in pairs. 



Dicotyle'don : a plant having two cotyledons. 



Did'ymous (Gr. didytnos, twin) : occurring in pairs. 



Didyn'amous (Gr. di- + dynamis, power) : applied to stamens when in two 

 pairs of unequal length. 



Diffuse' : widely or loosely spreading. 



Dig'itate (L. digitus, a finger) : applied to a compound leaf whose leaflets 

 are all borne at the apex of the petiole. Figs. 259 and 260. 



Digitately: applied to leaves which are lobed, cleft, parted, or divided in 

 digitate manner, as in Figs. 237-239. 



Dim'erous (Gr. di- + meros, a. part) : applied to n flower having all of its 

 parts in twos. 



Dimor'phOUS (Gr. di- ■\- morphe, form) : occurring in two forms. Fig. 91. 



Dioe'cious, pr. di-e'shus (Gr. di- -|- oikos, a house) : having only unisexual 

 flowers, the staminate and pistillate flowers being borne on different 

 individuals. 



Dis'coid (Gr. diskos, a round plate ; eidos, form) : resembling a disk ; applied 

 to the heads of Compositae which are composed of disk flowers only. 



Disk : the central part of the head of Composite as opposed to the margin. 



Dissect'ed : deeply cut into many divisions. 



Dissep'iinent (L. dis, apart, scepire, to enclose) : the separating membrane 01 

 wall in a compound ovary or fruit. 



