Aotinostele 



Aden 



pericycle (Brebner) ; actinost'omous 

 (arSfia, a mouth), radiate structure 

 round the ostioles of Lichens and 

 other Cryptogams, 



Actinoph'rjds (Actinophrys, Ehrenb,, 

 a genus of Rhizopods), Gobi's term 

 for globes with radially-arranged 

 pseudopodia in Pseiodospora, a 

 parasite on Vaticheria. 



Acti'am, pi. Acti'a (o«t^, rocky coast), 

 a rocky seashore plant formation ; 

 actoph ilus {<pi\e(c, I love), gi-owing 

 on the seashore ; Actophy'ta, plants 

 of the rocky shore (Clements). 



ac'tive, in a growing condition ; not 

 dormant. 



aca'leate, aculea'tus {a^uleus, a stiug 

 or prickle), armed with prickles, as 

 the stem of a rose ; acu'leiform, 

 aculeiform'is {forma, shape), prickle- 

 shaped ; acu'leolate, aculeola'tus, 

 somewhat prickly ; aculeo'sus, 

 decidedly prickly; Acu'leus (Lat.), 

 a sharp epidermal emergence, a 

 prickle ; pi. Aculei ; Acu'leolus, a 

 diminutive of the last. 



Acu^men (Lat., a point), a tapering 

 point ; acu'minate, aciLinina'tus, 

 having a gradually diminishing 

 point; acuminifo'lius {folium, a 

 leafj, with acuminate leaves ; 

 aea'minose, acumino'sus, approach- 

 ing acuminate ;acumin'ulate, having 

 a small terminal point. 



acutang'nlar, acutang'ulus, (Lat.), 

 when stems are sharply angular ; 

 acutate' {acu'tics, sharp), slightly 

 aliarpened, as at the apex ; acu'te, 

 acu'tus, distinctly and sharply 

 pointed, but not drawn out ; acu- 

 tiflor'uB (Lat., flos, Jloris, a flower), 

 with acute perianth segments ; 

 acutifo'lius (Lat., folium, a leaf), 

 with pointed leaves ; aontilo'bus 

 (Lat., lobus, a lobe), composed of 

 lobes which are acute ; acatius'cnlas 

 (Lat.), somewhat acute. 



aeyanophorlc (o, not ; Kvavox, dark blue • 

 <pophs, bearing), applied to plants 

 which do not produce cyanogen ; 

 aoyc'lic {kvk\os, a circle), tised of 

 flowers whose parts are arranged 

 spirally, not in whorls. 



-ad (-a87j», patronymic suffix) used by 

 Clements as an addition meaning 



ECAD. 



Adapta'tion {adaptatus, fitted), the 

 means by which an organism adapts 

 itself to changed surroundings ; 

 •^ Direct'or, employed to denote an 

 advantageous change by reaction to 

 a stimulus (Lotsy) ; cf. Biaiometa- 

 MORPHOsis ; adapt'able, -"able to 

 originate Ecads" (Clements); adap'ii- 

 ive modifications are those which 

 obviously fit an organism to exist 

 in given environments, and perhaps 

 produced by the latter ; '-' Par'a- 

 sites, saprophilous fungi become 

 parasitic ; --' Ea'ces, morphologic- 

 ally identical, but differing physio- 

 logically ; cf. BIOLOGIC Races. 



adax'ial {ad, to ; axis, an axle), the 

 side or face next the axis, ventral. 



addnceut'ia Va'sa {ad, to ; duco, I 

 lead), the spirals in tracheids, which 

 spirals were formerly supposed to be 

 vessels ; Adducto'res, Hedwig's term 

 for archegonia. 



Adelogain''icae, (SSr/Aoi, unknown ; 

 ydixos, marriage), Radlkofer's terra 

 for Fungi and Lichens ; adelosi- 

 phon'ic {(Tl<p(av, a tube), applied tc 

 a DiCTYOSTELE when complex, and 

 ceasing to be tubular (Brebner). 



Adelph^ia {aSeXcphs, a brother) ; (1) a 

 fraternity ; a collection of stamens 

 by their filaments into one bundle ; 

 pi, Adelph'iae, two or more similar 

 bundles ; (2) used by Galton for 

 fraternities in variation ; adelph'ic, 

 adelph'icus ; adelph'ous, adelph'tis, 

 having brotherhoods of stamens ; 

 Adelphog'amy {yiixos, marriage), 

 fertilization between neighbouring 

 plants of the same species ; Adelph- 

 oph'agy {<t>ayos, a glutton), the 

 union of two gametes of the same 

 sex (Giard) ; Adelphotaz'y (t££|«s, 

 order), used by Hartog to express 

 the mutual attraction of ^ores of 

 Achyla and of Pedastreae after 

 extrusion. 

 Adelome (possibly from SStjXos, con- 

 cealed) = Alburnum (Lindley). 

 Aden (d5Jji/» a gland), a gland or 



