Aorochlamydeae 



Aotinoitele 



sidered by him to stand at the 

 head of Dicotyledons ; Acroconid'- 

 ium (+C0NIDIUM), used of those 

 conidia which successively mature 

 and break away from the apex of the 

 conidiophore (A. Fischer) ; acrod'- 

 romous {Sp6/xos, a course), venation- 

 strands uniting at the apex of the 

 leaf, as in Plantago ; acrofu'gal 

 ifugw, a flight), basipetal ; Ac'rogam 

 {yd/jLos, marriage), the same as chal- 

 azogamic ; acrog'amous (ydfj-os, mar- 

 riage), plants producing the egg- 

 apparatus at the summit of the 

 embryo-sac, as in most Angiosperms 

 (Van Tieghem) ; Acrog'amy, may 

 be double, as when the pollen tube 

 and egg-apparatus are both apical ; 

 or partly basigamic, either of male 

 (pollen-tube) or female (egg-ap- 

 paratus) (c/. BASTGAMOUs) ; acrog'- 

 enous, {yf yos, race), (1) used of 

 plants growing at the apex, such 

 as Ac'rogens, Ferns ; (2) produced 

 at the end of a filament, as some 

 fungus spores ; Acrogen^esis {y4v€ffis, 

 origin), terminal fructification ; Aero- 



f^onid'ium {ySvos, offspring, eI5os, 

 brm), a gonidium. formed at the 

 apex of a gonidiophore ; acrog'ynous 

 iyvu^, a woman), having the stem 

 terminated by female organs, as 

 archegonia ; acrogyra'tus {gyratics, 

 turned round), having an elastic ring 

 at the point (LindleyO as in Schizaea. 



Acro'nns (perhaps from &Kpov, the 

 highest point), Necker's term for 

 an ovary without a basal disk. 



acronych'ius {&Kpos, apex ; ovu|, a claw), 

 curved like the claw of an animal ; 

 acrop'etal (peto, I seek), produced 

 in a succession towards the apex, as 

 applied to development of organs ; 

 the antithesis of basipetal ; acroph'- 

 ilus {<pi\€co, I love), dwelling in the 

 alpine region ; Acrophy'ta {<purhv, 

 a plant), alpine plants ; Acrophyti'a, 

 alpine plant formations (Clements) ; 

 Acrosarc'um ((rcip£,(ropK^j, flesh), Des- 

 vaux's term for a berry from an ovary 

 with adnate calyx, as the currant ; 

 acroscop'io (<TKoit4ci>, I see), looking 

 towards the simimit ; the rever-se of 



basiscopic ; Acrosperm'eae (orep/io, a 

 seed), Ac'rosperms, those Angio- 

 sperms which are presumed to have 

 begim with simple porogamous mode 

 of impregnation ; c/. Pleukosperm ; 

 Ac'rospire (o-iretpo, a coil), Grew's 

 name for the first sprout of a germi- 

 nating seed, the extruded radicle ; 

 acrospi'red, germinated, as in malt- 

 ing ; Ac'rospore (triropk, a seed), a 

 spore formed at the summit of a 

 sporophore or filament ; acrothe'cal 

 {6i)K-n, a case), applied to vii-escent 

 anthers when the polliniferous por- 

 tion is confined to the apex, the 

 lower portion becoming leaf-like 

 (Celakovsky) ; Acrot'onous {t6vos, a 

 cord), the tissue of the poUen-sfwj in 

 Orchids prolonged to the upper end 

 of the anther ; Acrot'ropism {rporij, a 

 turning), the continued direction of 

 a root so long as its ape^ is uninjured. 



Ac'rose = Fructose. 



Ac'tad [OLKT^, rocky coast ; iSTjs, patro- 

 nymic suffix), a plant of a rocky 

 shore (Clements). 



Actiuench'yma (o>ct/s, a ray ; Kyxvfxa, 

 an infusion), cellular tissue formed 

 in a star-shaped manner, as seen in 

 a cross-section of Juncus; aetin'io, 

 used of certain rays of the spectrum, 

 which have a powerful effect on 

 growth ; Act'iniam, the chemical 

 action of sunlight ; Act'inocarp, a 

 fruit which is actinocarp'ie {Kapvhs, 

 finiit), having the carpels or pla- 

 centas radiating like the spokes of 

 a wl'.eel ; actiaod'romoiis {^piixos, a 

 course), when veins are palmately 

 or radially arranged, as in Acer; 

 Actinomor phy {nop<p^, a change), 

 an ACTiNOMOurHic arrangement ; 

 actinomorph'ic, -ous, having flowers 

 of a regular or star pattern, capable 

 of bisection in two or more planes 

 into similar halves ; Actinomyco'sis, 

 a disease in the jaw-bone of man 

 and animals attributed to a Fungus, 

 Nocardia Actiiiomi/cosvt, Trev. ; 

 Act'inostele ( + Stele), the stele of 

 most roots and certain stems, con- 

 sisting of alternating or radial groups 

 of xylera and phloem within a 



