Homomorphy 



Homotype 



the disk and ray florets of Compositae 

 are alike ; either normally or by con- 

 version of the disk florets from 

 tubular into ligulate florets ; Homo- 

 ne'meae {viifia, a thread), formerly 

 applied to Algae and Fungi (Hens- 

 low) ; Hom'onym, Homon'ymon 

 {6voixa, a name), (1) botanically, the 

 same specific name'in another genus 

 of the same plant, as Myrtus buxi- 

 folia, Sw., is a Homonym as well as 

 a Synonym of Eugenia buxifolia, 

 Willd.; (2) a name rejected because 

 an earlier application of the same 

 name to another genus (0. F. Cooke) ; 

 Homon'ymy, the possession of the 

 same specific name under another 

 genus ; homoo^gonous {y6vos, race) = 

 ANESOGONOUs, breeding true ; homo- 

 om'erous = homoiomerous ; Homo- 

 bp'lasy {ir\a.a<xui, I shape), when an 

 abnormal gi'owth consists of the same 

 elements as the part whence it arises 

 (Kiister); homopet'alous {TriraKov, a 

 flower leaf), (1) all petals being alike ; 

 (2) the receptacle of Compositae when 

 the florets are alike, as the Ligulatae ; 

 homophyad'ic. homophyad' cus {<pvr}, 

 growth), applied to those species of 

 Equisetuin, whose fertile and barren 

 stems are similar in form; homo- 

 phyt'ic, used of plants having 

 bisexual sporophytes (Blakeslee); 

 Homoplas'my (TrAaa/ia, moulded), 

 similar in form but not of similar 

 origin, as Cacti and succulent 

 Euphorbias ; Hom''oplast, corre- 

 spondence in external form, but dis- 

 tinct in nature; adj. homoplas'tic ; 

 Homoplas'tids, pi. organisms derived 

 from similar cells, cf. Hkteko- 

 PLASTiDS; Hom'oplasy, moulded 

 alike but of diHereut origin, ana- 

 logous, not lioiaologous, cf. Homo- 

 plasm Y; homopo'lar {^6x05, a pivot), 

 relating to the same pole ; homo- 

 pro'teoid (-H pi'vOtkoid), used of 

 plants whose leaves have sclerotic 

 cells uniformly distributed (Vesque); 

 Homosporan'gium ( + Sporangium), 

 a spore-case whirh develops into a 

 bisexual prothallis, as of n Fern 

 (Worsdell) ; homosporan'gic, giving 



1 



84 



rise to one sort of spore only 

 (Blakeslee) ; homospor'ic (-f Si'Oba), 

 derived from one kind only of spore 

 (Blakeslee) ; homos'porous {airopa, 

 seed), (1) similar-seeded, in oppo- 

 sition to HKTEKOSFOKOUS ; (2) 

 neutral -spored; Homostat'ic {o-rarhs, 

 & standing) Pe'riod, that period 

 during which the present vegetation 

 developed efter the Pliocene forma- 

 tion (Tuzso) ; liom'ostyled(-i-STVLK) 

 = HuMOGONous ; Homostylia, 



homogonous plants ; Homostyly, 

 ( -j- Style), the same relation of 

 length between all styles and anthers 

 of the same species (Axell); homo- 

 tac'tic (raKTiKhs, apt to arrange), 

 when only one system of arrange- 

 nient prevails in an iniiorescence ; 

 homothal'amus {ddKafios, a room, 

 bride-chamber), defined by Lindley 

 as ' ' resembling the thalius, used 

 for Lichens only " ; homothall'lc 

 {daWbs, a sprout), monoecious, 

 applied to Mucorineae (Blakeslee)^ 

 Homothalli'iini, Minks's term for 

 the medullary layer of a lichen ; 

 homother'mic [Qip^os. hot), applied 

 to firm earth or rooky soil, which 

 absorbs heat and loses it slowly ; 

 cf HETEKOTHEUMic ; homot'ropal 

 {rpovri, a turning), applied to organs 

 having the same direction as the 

 body to which they belong ; homo- 

 t'ropic (r/x^irov, direction), fertilized 

 by anthers from the same flower (K. 

 Pearson) ; homot'ropous, -lyits (1) 

 curved or turned in one direction ; 

 (2) used of an anatropous ovule 

 having the radicle next the hilum ; 

 Homot'ropy (1) the Jiomotropous 

 condition ; (2) Lopriore's term for 

 secondary rootlets which branch in 

 the same direction from the axis ; it 

 may be longitu'dinal ~ , or trans'- 

 verse^ ; Hom'otype {tv-kos, form, 

 type), (1) correspondence of parts; 

 (2) in nuclear division this term is 

 apjtlied to those cases resembling 

 ordinary karyokinesis, save in niinor 

 respects, immediately following the 

 HETERca YPE ; in some cases it occurs 

 in all the stages after the Hetero- 



