Ecology 



Eel trap Hairs 



Ehysiograph'ie Eeorogy, the distri- 

 ution of plants accormng to climate 

 and soil ; economic Botany (yo/jLiKhs, 

 resting on laws), appliea botany, 

 that branch which takes note of 

 technical application of plants and 

 plant-products ; -^ Coeffic'ient, the 

 weight produced by a consumption 

 of l<tO parts of the nutrient material 

 (Pfeffer). 



Ecopar'asite, or Oecopar asite (oIkos, 

 a house ; -f Parasite), a specialized 

 form of a parasitic fungus when 

 growing on one or more host-species 

 to which it is confined under nonnal 

 circumstances ; c/. Xenoparasite ; 

 Ecopar'asitism, or Oecopar'asitism, 

 is the condition in question 

 (Salmon). 



ecortlcate, ecortica'tus («, priv. ; cortex, 

 bark), destitute of baric, or bark- 

 like covering ; ecos'tate, ccosta'tua 

 {costa, a rib), without ribs, nerve- 

 less ; ecrusta'ceous (crusta, rind, -f 

 aceous), destitute of thallus, applied 

 to Lichens. 



E'cotone {oIkos, a house ; r6vos, stress), 

 the stress line or boundaries between 

 plant associations (Clements) ; also 

 spelled Oe'cotone. 



Ectauze'sis {iKrhs, outside ; ai^rj&is,- 

 growth), the growth of an organ 

 outwards through the substance of 

 the parent shoot (Weisse) ; ectocy'- 

 olic {kvkXos, a circle), used of 

 sieve-tubes which are between the 

 epidermis and the ring of sclerogen 

 (Fischer) ; Ecto^en'esis {yevecris, a 

 beginning), variation induced by 

 external conditions ; ectogenlo 

 (7«Vo$, offspring), capable of living 

 outside of a given body, as certain 

 bacilli ; Ectopar'asite (-f Parasite), 

 a parasite which remains on the 

 exterior of its host, only sending its 

 haustoria within ; opposed to En do- 

 parasite ; Ectopep'tase {ir«irrhs, 

 cooked), an enzyme which peptonizes 

 the more complex of the proteins, 

 and occurring in the excretions of 

 plants, such as the pitcher-liquid of 

 Nepenthes (Vines) ; ectopMoeo'des 

 {ipKoihs, bark), living on tne surface 



or bark of other plants as some 

 Lichens ; ectopMolo, the condition 

 of stems when the internal phloem 

 iswanting; cf. amphiphlqic (Jeffrey); 

 Ect^oplasm {irxdvua, moulded), a 

 delicate, firm, superficial layer of 

 the cytoplasm or general protoplasm 

 of the cell, hyaloplasm. 



Ec'topy {iKT&Kios, displaced), the 

 abnormal position of an organ. 



Ect'ospore {iicrhs, outside ; airopk, 

 seed), a synonym of Basidiospore ; 

 Ectospor'iam, the outer layer of a 

 spore in bacteria (Miihlschegel) ; 

 ectos'porous, possessing exogenously 

 formed spores; ectothe'cal (d'^wn. a 

 case), in Ascomycetes used for naked- 

 spored ; ectotropVic h-po(p^, nour- 

 ishment), when a fungus clothes a 

 root oply externally ; ectrotrop'io 

 {rp6iros, direction), (1) outward cur- 

 vature ; (2) the course of the pollen- 

 tube in acrogamic fertilization, by 

 the micropvle to the embyro-sac 

 (Pirotta ana Longo). 



ecy'phellate («, priv. + Cyphki.la), 

 used of Lichens destitute of cy- 

 phellae. 



edaph'ic (l5a<^os, the ground), A. F. W. 

 Schimper's term for the influence of- 

 the soil on the plants growing upon 

 it ; Edaph'ophytes {<pvrhv, a plant), 

 plants which root in the earth, with 

 assimilation organs in the air above 

 it ; normal plants, or Euphytes 

 (Schrbter). 



edent'ate, edenta'ttis (deiis, dentis, a 

 tooth), without teeth ; ede&t'nlui 

 (Lat.), toothless. 



Ed'eetin {4i€<rrhs, eatable), a globulin 

 constituent of wheat flour, forming 

 about six to seven \>ei cent. 



Edge, the margin or outline, as of a 

 leaf ; edged, when a patch of colour 

 is rimmed round by another tint. 



Edob'oles, -ae, pi. {oUos, a swelling, 

 0o\i], a throw), distribution by 

 turgescence of fruits or sporangia 

 (Clements). 



Eel-trap Hairs, hairs found in struc- 

 tures which detain insect visitors, 

 as in iyarracenia and Aristulnchici 

 Clematitis (Habcrlandt). 



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