Eugenoi 



Evolution 



Eu'genol, the chief constituent of oil 

 of cloves, obtained from Pimento, 

 acris, Kostel., and other myrtace- 

 ous plants, formerly referred to 



eugeog'enous (e5, well, 777, the earth, 

 yevvdw, I bring forth), Thurmann's 

 word to indicate rocks readily 

 yielding detritus and the plants 

 which grow on it ; Eunu'cleole 

 (+NUCLEOLE), used by Rosen for 

 an erythrophilous nucleus ; Euisog'- 

 amy (7^0 j, marriage), the union 

 of a gamete with any other similar 

 gamete (Hartog). 



Eupato'rine, an alkaloid occurring in 

 Eupatorium canndbinum, Linn. 



Euphor'bium, an acrid inspissated 

 juice or resin from various species 

 of Euphorbia. 



euphotomet'ric (eft, well, 0<Ss, 0or6s, 

 light, fdrpov, a measure), used of 

 leaves which place themselves so 

 as to obtain the maximum of dif- 

 fused light, as the foliage of forests 

 (Wiesner). 



Eu'phylls (e&, well, ^uXXov, a leaf), 

 true leaves, foliage leaves; eu- 

 phy'toid ((f>vTov, a plant ; eTSoj, 

 like) Par'asites, are erect land 

 plants, parasitic in habit ( Johow) ; 

 eu'scnist (<rx^ros, split), when a 

 gamete is formed by successive com- 

 plete divisions from the parent - 

 cell, the Gametogonium (Hartog) ; 

 eusporang'iate (viropa, seed, dyyeiov, 

 a vessel), in Pteridophytes, possess- 

 ing a sporangium, a Eusporan'gium, 

 derived from a group of superficial 

 cells; Eusporophy'ta(0urov, aplant), 

 Cryptogams defined by C. Mac- 

 millan as ' ' self-supporting, and do 

 not nurse the gametophytes,e.#. the 

 higher mosses, the lower fern- 

 worts and club-mosses " ; Eu'stathe 

 ((TTa0/ios, abode), "the external 

 layer of a cell " (Lindley). 



Euthybas'id (evdvs, direct), Van 

 Tieghem's word for those basidia 

 which spring directly from the 

 sporophore ; cf. PROBASID ; Eutby- 

 morph'osis (po'p0cwts, a shaping), 

 the rapid succession of members of 



different form on the same stem, 

 buds, etc., polymorphism (Caruel). 



eu'thyachist (ctdvs, immediately, 

 (TXIOTOS, split), brood-division, when 

 each nuclear division is accom- 

 panied by cell division (Hartog). 



eutrop'ic (e, well, T^OTI-OS, direction), 

 A. Gray's word for twining with 

 the sun, that is, left to right, 

 dextrorse ; Eu'tropy, applied by 

 M'Leod to those flowers to which 

 only a restricted class of specialised 

 insects can gain access. 



evalv'is, evalv'ular (e, priv., valva, 

 leaf of a door), destitute of valves, 

 not opening by them. 



evanes'cent (evanescens, vanishing), 

 soon disappearing, lasting only a 

 short time ; evaniscen'ti-veno'sus, 

 when the lateral veins of a leaf do 

 not reach the margin. 



Evapora'tion (evaporatio, vapouris- 

 ing), to pass off in vapour. 



e'ven, without inequalities of sur- 

 face ; E'venness, absence of eleva- 

 tions or depressions ; evenpin'nate 

 = ABRUPTLY-PINNATE (Crozier) ; 

 ev'ergreen, bearing green foliage 

 all the year ; everlast'ing, used of 

 some flowers which preserve their 

 shape and colour in drying, as 

 species of Gnaphalium, Hdichry- 

 sum, etc. 



ever'niaeform (forma, shape), like 

 the thallus of Evernia, a genus of 

 Lichens ; Ever'nine, a principle 

 found in the same genus ; evern- 

 io'id (eldos, like), resembling 

 Evemia. 



Ever'sion (eversio, an overthrowing), 

 protrusion of organs from a cavity, 

 turned backward or outward ; 

 evert'ed, turned inside out. 



evident (evidens, manifest), clearly 

 visible. 



evit'tate, evitta'tus (e, priv., vitta, a 

 fillet), not having VITTAE, oil- 

 reservoirs in the fruit of Umbelli- 

 ferae. 



e'volute (evolvo, I roll forth), unfold- 

 ed, turned back ; Evolu'tion, (1) 

 the act of development ; (2) the 

 theory according to which complex 



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