apical 



Apogamy 



the direction of the raphe, at equal 

 distances from homologous points 

 of the girdle band surfaces, and 

 through the apices ; ^ Cell, the 

 single cell in many plants which 

 is the origin of all longitudinal 

 growth ; '- Cone = Punctum Vege- 

 TATiONis ; -^ Growth, extension in 

 the length of the axis ; ^ Plane, in 

 Diatoms, the plane at right angles 

 to the valvar plane, which passes 

 through the pervalvar and apical 

 axes ; cf. pervalvar <-' ; trans- 

 apical '- ; -^ Pores, special hyd- 

 athodes and monocotyledons (Haber- 

 landt) ; apicicircinna'tus % [circin- 

 natus, turned round), ending in 

 a circinnate manner ; apiciriary, 

 apicilla'ris, inserted on, or per- 

 taining to the summit, as in the 

 dehiscence of the capsule of Ceras- 

 Hum ; apic'ifized {fixus, fastened), 

 descriptive of a suspended anther 

 (Groom), 



Apic'ula, Apic'tdu7n (Lat., a little 

 point), a sharp and short, but not 

 stitf point, in whicli a leaf may 

 end ; apic'ulate, apicula'tus, fur- 

 nished with an apicula. 



Apig'enin, a ghicoside found in many 

 Umbelliferae, especially Apium. 



A'pilary (a, without ; ir'iKos, hat), sup- 

 pression of the upper lip in such 

 flowers as Calceolaria; Aplano- 

 gametan'gium [ayytTiov, a vessel), 

 the organ which gives rise to aplano- 

 gametes ; Aplanogam'etes (oTrAavrjs, 

 not wandering ; yafieTTjs, a spouse), 

 a non-ciliated gamete, which may or 

 may not be set free ; Aplan'ospores 

 {ffvoph, a seed), non-motile cells 

 which are detached for propagation, 

 formed asexually by true cell-forma- 

 tion and rejuveiifscence ; aplasmo- 

 dioph'orus (o, without ; irKda-fia, 

 moulded ; clSos, resemblance ; <popds, 

 bearing), used of Myxo^asties which 

 do not produce plasmodia ; aplas'tic 

 (irAao-rSs, moulded), not convertible 

 into organic tissues ; aplolepid^eous 

 (Acirls, a scale), applied to those 

 Mosses having a single row of teeth 

 or scales in the peristome ; Aploperi- 



st'omi {airXdos, simple ; rtpl, around ; 

 o-rd/ia, mouth). Mosses having a 

 single row of teeth in the peristome, 

 or none ; adj. aploperistom'atous. 



apobat^ic {airofialvot, I depart), re- 

 pulsive ; cf. isTROPHIC. 



Ap'oblast (otto, up ; fiXaarhs, a germ), 

 a barren shoot, as from pollard 

 willows ; adj apoblas'tic ; Ap'ocarp, 

 Apocarp'iwni {Kapirhs, fruit), a fruit 

 which is apocarp'ous, -pus, that is, 

 when ike carpels of a Gynaecium 

 are separate ; Apocar'py is the con- 

 dition ; Apochemotax'is {+ Chemo- 

 TAXIs), negative attraction due to 

 chemical influence ; repulsion ; adj. 

 apochemotac'tic. 



apocyna'ceoua, apoc3ai'eouB, relating 

 to or resembling the genus Apocy- 

 num or its allies. 



apocyt'ial {kvtos, a hollow), of. the 

 nature of an Apocyt'ium or Ap'ocy te, 

 an habitually plurinucleate mass of 

 protoplasm, cell-di\asion remaining 

 in abeyance; multinucleate and 

 unicellular ; Apoc'yty, Vuillemin's 

 term for non-cellular tissue in Fungi 

 and Algae, the cells being reduced 

 to several nuclei within the cell- 

 wall. 



apod'ial (a, without ; irovs, voShs, 

 foot), destitute of a Podium or foot- 

 stalk ; apodog'ynus X iy^f^h, woman), 

 applied to a disk which is not ad- 

 herent to the ovary. 



Apoem'bryony (otto, from ; tfi^pvov, 

 au embryo), the embryo-stage sup- 

 pressed, the oosphere giving rise 

 immediately to the vascular mem- 

 bers ; Apogalvanotax'is ( + ' Gal- 

 VANOTAXis), negative Galvano- 

 TROPISM ; apogEun'ic, apogamous. 



Apog'amy {yafios, marriage), (1) ab- 

 normal budding and production of 

 a bion by a prothallus without 

 sexual intervention ; (2) indepen- 

 dently framed by Romanes to ex- 

 press ' ' indiscriminate isolation " | 

 meiot'ic ~, apogamy after meiosisT 

 when the sporophyte originates from 

 the oosphore or from gametophytic 

 tissue ; diploid ^ = Euapooamy ; 

 hap'loid '^ = MEiOTic Apogamy ; 



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