Arrow 



Aseoearp 



Ar'row-head'ed, '-' sliaped, barbed like 

 an arrow, sagittate. 



arth'onoid, artho'nioid, of the form or 

 consistence of the apothecia in the 

 genus Arthonia, Ach. (The generic 

 name is falsely derived from an 

 imaginary &pdcD ; it should be -^r- 

 donia from &pS<a). 



arthrodes'moid, resembling in form 

 the Desmid genus ArthrodesmvLS 

 (Archer). 



arthrog'enous (JifiBpov , a joint; yivos, 

 oflFspring), when portions separate 

 from the cell, and gradually develop 

 into distinct individuals (Massee) ; 

 e. g. -^ Spores, in Bacteria when 

 portions separate from the cell and 

 develop into spores ; Arth'rospore 

 {a-Kopa, a seed), one of spores like 

 a chain of beads, formed by fission ; 

 arthrospor'ic, arthrosp'orous, ap- 

 plied to Schizomycetes, in those 

 species which have no endogenous 

 spore -formation ; Arthrosterig'mata 

 {(rr'f)piyfia, -aros, a prop), .jointed 

 sterigmata in some Lichens, made 

 up of rows of cells from which spores 

 are abstricted. 



Article, Artic'ulus (Lat.), a joint; 

 artic'ulated, articula'tus, (1) jointed, 

 separating freely by a clean scar, 

 as in leaf-fall ; (2) used by Bentham 

 and Hooker for the jointed pod of 

 Desmodium ; Articula'tion, (1) a 

 joint, popularly applied to the nodes 

 of grasses ; (2) the basal portion of 

 the sensitive bristle in Dionaea ; 

 Artic'uli, the segments of coralline 

 Algae, usually incmsted with lime. 



Ait'iiact {arSy art ; foetus, made), a 

 substance not naturally existing, 

 but resulting from laboratory treat- 

 ment ; artific'ial, artificia'lis (Lat., 

 according to rules of art), applied to 

 any scheme of classification which 

 is based on one set of characters, as 

 opposed to a natural scheme, which 

 takes all characters into account. 



artiphyirous, -lus {iprios, complete ; 

 (pvWov, leaf), used of nodes which 

 bear manifest buds. 

 Ar'tolin {dpros, a loaf), the proteid of 

 wheat-gluten. 



amn'coid {eUos, like), resembling 

 Spiraea Aruncu8. 



anmdina'ceous, arundina'eeus, reed- 

 like, having a culm like tall grasses ; 

 arandin'eons, reedy, abounding in 

 reeds. 



arven'sis, {arva, arable land), applied 

 to plants of cultivated land, espe- 

 cially of ploughed fields. 



Asafoet'ida {aza, Persian for mastic ; 

 foetidus, stinking), a gum-resin of a 

 persistent alliaceous odour and taste, 

 yielded by Ferula Narthex, Boiss., 

 and other allied Umbelliferae. 



As'arin, the bitter principle of Asara- 

 bacca, Asarum europaeum, Linn. ; 

 As'arine, a crystallized substance 

 resembling camphor. 



Ascell'uB, (1) diminutive of Ascus ; (2) 

 the spores of certain Fungi (Lindley). 



ascendent, -ens, ascend'ing, (1) 

 directed upwards, as the stem ; the 

 ascending axis is oblique at first, 

 then erect ; (2) opposed to descend- 

 ing. 



-ascens, a suffix denoting a tendency 

 towards something, as ciner-ascens, 

 becoming ash-coloured, cinereus. 



ascidia'tus (Lat.), furnished with 

 AsciDiA ; Aicid'inm (oo-KtStov, a little 

 pitcher), pi. Ascid'ia, (1) the pitcher 

 of Nepenthes, etc., the metamor- 

 phosed lamina of the leaf, becomes 

 tubular, usually with a lid, which is 

 a development of the apical portion 

 of the leaf ; (2) the asci of certain 

 Fungi ; ascid'iform {forma, shape), 

 pitcher-shaped. 



ascirerous {ascus, Mod. Lat., a wine- 

 skin ; fero, I bear), bearing asci ; 

 ascig'erous {gero, I produce) = Asci- 



FEROUS. 



asciifor'mis {ascia, a hatchet ; formis, 

 shape), used by Masters for hatchet- 

 shaped ; dolabriform. 



asclepiad'eous, like the genus As- 

 clepias or its allies, as to structure ; 

 Asclepiadol'ogy {kdyos, discourse), 

 the science, or a treating of the 

 order of Asclepiadeae (Schlechter). 



As'cocarp {aa-Khs, a wine-skin ; Koprhs, 

 fruit), the sporocarp of Ascomycetes 

 producing asci and ascospores ; its 



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