DIG 



124 



DIF 



dicoccous, a., di-ktiKk&s (Gr. dis, 

 twice, double ; kokkos, a berry, 

 a kernel), having two capsules 

 united, one cell in each ; split 

 into two cocci. 



dicotyledonous, a. , di'-kfc il-ed'. 

 dn-us (Gr. dis, twice; Eng. cot- 

 yledonous), in bot., having two 

 lobes, seed-leaves, or kotyledons : 

 dicotyledon, n., di'-kot'tt-ed'-on, a 

 plant whose seed consists of two 

 lobes. 



Dicranum, n., di-lcran'-tim (Gr. 

 dikranos, having two heads, 

 cloven from krdnion, the 

 skull, having reference to the 

 divisions of the teeth of the 

 capsule), a fine genus of mosses, 

 Ord. Musci or Bryaceae, many of 

 whose species form broad masses 

 of turfy vegetation. 



Dictamnus, n., dik-tamf-nViS (Gr. 

 diktamnos, L. dictamnum, the 

 plant dittany of Crete), a genus 

 of very ornamental plants, Ord. 

 Kutacese, which emit a strong 

 odour : Dictamnus fraxinella, 



fraks'-iU'el'-lcb (L. fraxmus, the 

 ash tree, alluding to its leaves 

 resembling those of the ash), the 

 false dittany, whose leaves, when 

 rubbed, emit a fine odour, some- 

 what resembling that of lemon 

 peel; this and other species abound 

 so much in volatile oil, that, it is 

 said, the atmosphere around them 

 becomes inflammatory in hot, dry, 

 and calm weather. 



dictyogens, n. plu., dik-tl'-o-jens 

 (Gr. dilctuon, a net ; gennao, I 

 produce), a great class of plants 

 which have a cellular system, the 

 latter consisting partly of elastic 

 spiral vessels : dictyogenous, a. , 

 dik'ti-d'dj'en'US, applied to mono- 

 cotyledons which have netted 



Didelp'hia, n. plu., di-dtif-M (Gr. 

 dis, twice ; delphus, the womb), 

 the subdivision of Mammals com- 

 prising the Marsupials. 



Didymocarpese, n. plu., did'-lm-o- 

 karp'e-e (Gr. didumos, two-fold, 



twin; karpos, fruit in allusion 

 to the twin capsules), a Sub-order 

 of plants, Ord. Bignoniacese, 

 having succulent or capsular 

 fruit : Didymocarpus, n., did'-im* 

 d-kdrp'u#, a genus of pretty 

 plants : didymosis, n., did'im* 

 oz'is, in bot., two united; union 

 of two similar organs. 



didynamous, a., did-m'am-us (Gr. 

 dis, twice, double ; dunamis, 

 power), in bot., having two long 

 and two short stamens. 



Dielytra, n., di-el'.U-ra (Gr. dis, 

 twice, double; elutron, a case, a 

 sheath), a genus of herbaceous 

 plants, Ord. Fumariacese, the 

 base of whose flowers is furnished 

 with two sheath-like spurs. 



diencephalon, n., di'en-sej'al'd'n 

 (Gr. dia, through, between ; eng- 

 kephalon, the brain), the second 

 of the divisions of the anterior 

 primary vesicle of the brain. 



Diervilla, n., dtfer-Mlti, (after 

 Dierville, a French surgeon), a 

 genus of plants, Ord. Caprifolia- 

 cese. 



dietary, n., di'Zt-ar-i (Gr. diaita, 

 L. diceta, mode or place of life, 

 means of life; F. di&te), a sys- 

 tematic course or order of diet 

 with the view of maintaining the 

 body in perfect health: adj., re- 

 lating to diet: dietetics, n. plu., 

 dl'-H-et'-iks, that branch of medic- 

 ine which relates to the regula- 

 tion of diets in sickness and 

 health. 



diffluent, n., dlf-jloo^nt (L. 

 diffluens, dissolving from dis f 

 asunder; fluo, I flow), in bot., 

 dissolving ; having the power to 

 dissolve. 



diffract, a., dif-frakt' (L. di/ractvs, 

 broken in pieces, shattered from 

 dis, apart, asunder; fractus, 

 broken), in bot., broken into dis- 

 tinct areolse separated by chinks. 



diffuse, a., dif-fus' (L. dijfusus, 

 spread abroad from dis, asunder; 

 fusus, poured or spread), widely 

 spread; in bot t) spreading irregul- 



