Oeophytes 



gibbous 



or Trav'elling ~ plantc having hori- 

 zontal hypogeous scaly shoots, giving 

 rise to leaves and flowers (Warm- 

 ing) ; adj. geophyt'ic ; Geophyti'a, 

 land plant formations (Clements) ; 

 eeoplagiofropismi X + PLACiioxROP- 

 ism), havmg the rtirection of growth 

 oblique to the ground ; Geostroph'- 

 iem (-f Stkophism) the tendency 

 to twist in response to gravity ; 

 geotac''tic, relating to Geotaxis ; 

 it may be poa'itive or neg'ative ; 

 Oeotax'is {rd^is, order), movement 

 or arrangement in plants caused by 

 gravity (Czapek) ; Geotax'y = pre- 

 ceding ; Geothermom'eter {Oepfihs, 

 warm ; fierpov, a measure), a ther- 

 mometer for earth temperatures ; 

 Ge'otome (to^)?, an edge), an instru- 

 ment for obtaining samples of soil ; 

 Oeot'onus {t6vos, stress), the tendency 

 to bring back to a normal condition 

 any or^an which has been forced 

 from it (Czapek) ; Geotort'ism 

 {tortics, twisted), torsion caused by 

 the influence of gravitation (Schwen- 

 dener and Krabbe) ; Geot'rophy 

 (rpo^))?, food), unilateral inec^uality 

 in growth due to position with 

 regard to gravity (Wiesner) ; geo- 

 trop'ic (TpoTTTj, a turning), relating 

 to the influence of gravity on grow- 

 ing organs; Geot'ropism, the force 

 of gravity as shown by curvature in 

 nascent organs of plants ; la'teral 

 '^, curving horizontally, as in twin- 

 ing stems (Macdougal) ; neg'ative 

 '^ growing away from the earth, 

 as stems do normally ; pos'itive -^ , 

 growing towards the earth's centre, 

 as roots ; trans'verse ~, = Diageo- 

 TROPISM ; Geox'yl {^v\op, wood), ap- 

 plied by Lindman to any woody 

 plant with numerous stems arising 

 from a subterranean rhizome. 



gerauia'ceoas, resembling or allied to 

 Geranium. 



Oerm (germen, a bud), (1) a bud or 

 growing point ; (2) the ovary or 

 youn^ fruit ; (3) a reproductive cell, 

 especially in bacteria ; '- Cell, (1) a 

 female reproductive cell ; (2) a spore 

 of the simplest character, a sporidium 



(Brefeld) ; — disc, — fil'ament, '-' 

 plants, stages in the life of Hepaticae. 

 (Goebel) ; ~ Nu'cleus, the nucleus 

 resulting from the union of the 

 pronuclei of two gametes in con- 

 jugation ; -^ -plasm, the assumed 

 original generative substance con- 

 tained in the body of the parent 

 from which new individuals arise ; 

 cf. Soma - plasm (Weismann) ; •^ 

 Pore, a pit on the surface of a spore- 

 envelope through which a germ-tube 

 makes its ap( earance ; -^ Tube, a 

 tubular process from a spore develop- 

 ing into a hypha. and then into a 

 myi^elium or promycelium. 



Germanic, H. C. Watson's term for a 

 type of distribution in Great Britain 

 of those plants Avhose headquarters 

 are in the eastern portions of the 

 kingdom. 



Ger'men (Lat., a bud), (1) Xinnaeus's 

 term for the ovary ; (2) formerly 

 used for the capsule of Mosses ; (3) 

 by Pliny and later writers it signi- 

 fied a bud generally ; Ger'micide 

 {-cida, a killer), an agent which 

 causes the death of bacteria or 

 spores ; cf. Sporocidr ; Germicul'- 

 ture (-j- Culture), the practice of 

 bacteriology ; ger'mintible (-+- able), 

 capable of germinating ; viable ; 

 ger'minal, relating to a bud ; <- 

 Appara'tus, = Egg-apparatus ; '- 

 Cor'pascle = Oospheke ; -' Dot, 

 of Diatoms, the centrosome ; ~ Lid, 

 a separable area of a pollen-grain, 

 breaking away to permit a pollen- 

 tube to issue ; ^ Pro'cess J a part 

 belonging to or proceeding from an 

 ovary (Lindley) ; --' Slit, a small 

 break in the seed-coat of Scitamincae; 

 '-' Ve'sicle = Oosphere ; Germina'- 

 tion, Germina'tio, the first act of 

 growth in a Seed ; sprouting ; 

 germ'inative Nu'cleus = Nucleus, 

 Generative. 



gerontogae'ous, -arus {yepwv, yepovros, 

 an old man ; yrj, the earth), used of 

 plants which are confined to the 

 Old World. 



gib'ber (Lat , hump-backed), giVbose, 

 gib'bous, gibbero'sus, more convex 



160 



