araliaceous 



Archoplasm 



spider, or spider's web, eTSos, re- 

 semblance), like a cobweb, from 

 an entanglement of fine whitish 

 hairs. 



aralia'ceous, resembling the genus 

 Aralia, or the order of which it is 

 the type. 



ara'neous J, araneo'sus , ara'neose 

 (aranea, a spider), have the same 

 meaning as arachnoid. 



Ar'bor (Lat. tree), a woody perennial 

 plant, having a bole from which 

 the branches spring ; arbores'cent, 

 arbores'cens ( + escens), attaining 

 the size or character of a tree ; 

 Ar'boret, a small tree or shrub ; 

 Arbore'tum, a place assigned for 

 the culture of trees, usually in 

 systematic order ; also the title of 

 a book devoted to trees ; arbor'eous 

 arbor'eus, tree-like ; arboric'oline, 

 arboric'olous ( + suffix -cola, in- 

 habitant), dwelling on trees, as 

 the habitat of Fungi or epiphytes ; 

 ar'boroid (eldos, resemblance), a 

 hybrid word for dendroid, tree- 

 like. 



Arbus'cula (Lat.), a small shrub with 

 the aspect of a tree, as some heaths ; 

 Ar'buscle is an old term for the 

 same; Arbus'culus (Lat.), a small 

 tree ; arbus'cular, arbuscula'ris, 

 shrubby, and branched like a tree. 



arbus'tive, arbusti'mifi (Lat. planted 

 with trees), coppiced. 



Arbus'tum (Lat.), (1) a shrub, 

 a branched woody perennial plant, 

 but wanting a distinct bole ; (2) 

 applied to an account of the woody 

 plants of a country, a Sylva. 



Arces'tMde, Arces'thida (dpnevOh, -Idas, 

 juniper berry ) = GALBULDS. 



arcna'ic (dpxcu/c6s, antiquated), used 

 with reference to a type of a former 

 age, as Casuarina. 



Archebio'sis (dp/crj, beginning ; /3u>s, 

 life), origin of life; Arch'egone = 

 AKCHEGONIDM ; archego'nial (yovr), 

 race), applied by Tschirch to 

 stomata, whose outer walls of the 

 guard cells are thickened, inner 

 walls only a thin lamella, the 

 guard cells separated in their 



central part but not at the poles, 

 as in Gymnosperms ; archego'niate, 

 possessing archegonia ; Arche- 

 gonia'tae, plants producing arche- 

 gonia, applied to Bryophytes and 

 Pteridophytes ; Archego'niophore 

 (<f>opeu, I bear), the supports of 

 archegonia in certain ferns, out- 

 growths of the prothalli, also 

 specialised branches on Sphagnum 

 with the same function ; Arcnego'- 

 nium, the female sexual organ 

 in Cryptogams, containing the 

 oosphere, which after fertilization 

 develops within the venter ; 

 Archene'ma (v7jfj.a, a thread), term 

 proposed by C. Macmillan for 

 gametophytic structures in Thallo- 

 phytes ; Arch'espore, Archespor'ium 

 (crTropa, a seed), the cell or cells 

 from which the spores are ultim- 

 ately derived as in the pollen sac, 

 or its homologue ; archespor'ial, 

 belonging to the same ;~ Cells, the 

 first eight cells in spore-formation 

 ^Pad, Bower's term for a mass of 

 cells developing beneath the sporo- 

 genous tissue in certain Pteridophy- 

 tes ; Arch'etype (TVTTOS, a type), an 

 original simple type; restricted to 

 a series of forms from the simplest 

 to complicated, with common type 

 of structure and phylogenetic con- 

 nections ; Arch'icarp (Kapiros, fruit) 

 in ascomycetous Fungi, the begin- 

 ning of a fructification, the cell or 

 group of cells fertilized by a sexual 

 act ; Archichlamyd'eae (x\afj.t>s, 

 -i>5os, a mantle), a term to include 

 the Polypetalae and Incompletae 

 of Phanerogams. 



arch'ing, curved like a bow. 



Arch'isperm (apxy, beginning ; a-rrep/j.a, 

 seed), (1) another name for Gymno- 

 sperm, from their presumed an- 

 tiquity ; (2) Boulger's term for 

 structures formed before fertiliza- 

 tion, or at an early stage in 

 the macrospore ; Archistrep'tes 

 (crTpeTTTos, twisted), the principal 

 spirals formed in phyllotaxis. 



Arch'oplasm (dpxos, chief; 7rAdo>ct, 

 moulded), Boveri's term for KINO- 



22 



