Pollenation 



A DICTIONARY 



Polyandrous 



of definite form, varying ac- 

 cording to species, which begin 

 the process of fertilization when 

 placed upon the stigma by an 

 act of germination. 



POl'lEnATE, see Pollinate. 



PdLLflNA'TION, see Pollina- 

 tion. 



PtiL'LEN-CflLL, sometimes ap- 

 plied to the cells or chambers 

 of the anther which contain 

 the pollen; pollen-sac. 



P6L'LEN-CHAM'BER, in gymuo- 

 sperms, a cavity at the apex of 

 the ovule in which the pollen- 

 grains lie during fertilization; 

 pollinic chamber. 



P6L'l£N-GRAIN, the usual term 

 for an individual spore, cell, 

 or particle of pollen. 



PdL'LENIZE, see Pollinate. 



PdLLENlZA'TION, see Pollina- 

 tion. 



PdL'L^NOID, used by Bennett 

 & Murray for Antherozoid. 



PuL'LflN-MAsS, see Pollinium. 



PdL'LEN-SAC, the cavity of an 

 anther containing the pollen; 

 pollen-cell. 



PdL'LilN-SPORE, see Pollen- 

 grain. 



p6llen-tetrAhe'dr6n (pi. 



Tetrahe'dra), see Pollen-tet- 

 rad. 



PdL'LEN-TfiT'RAD, a pollen- 

 mass consisting of four pollen- 

 grains united, either perma- 

 nently or before fully devel- 

 oped; fourfold pollen-grain; 

 pollen-tetrahedron. 



P6L'LEN-TUBE, a thin slender 

 tube which issues from the 

 pollen-grain on its contact 

 with the stigma, which it 

 penetrates until it reaches the 

 ovule where fertilization takes 

 place. 



P6L'LEX, an inch. (Obs.) 



POLLlNA'RlUM (pi. Pdllina'ria), 

 see Antheridium. 



PdL'LlNATE, to place pollen 

 upon the stigma; polleuate; 

 pollenize. 



P6LLiNA'Tl6N, the placing of 

 pollen upon the stigma — the 

 first stage of fertilization; pol- 

 lenization. 



POLLlN'IA, pi. , see Pollinium. 



PdLLIN'IC CHAM'BER, see Pol- 

 len-chamber. 



POllInIFEROUS, pollen - bear- 

 ing. 



P6LLIN'Iu"M (pi. PSllIn'ia), a co- 

 herent mass of pollen-grains in 

 certain plants, as orchids and 

 milk-weeds, so arranged as to 

 be conveyed by insects; pol- 

 len-mass. For the terminol- 

 ogy of the parts supporting a 

 pollinium, see Retinaculum, 

 Corpusculcm, Caudicle, and 

 Pedicel. 



P6LL!NlzA'Tl6N, see Pollina- 

 tion. 



PdLLlNO'DltlM, the antherium 

 or male sexual organ in Pyre- 

 nomycetes which, either di- 

 rectly or by means of an out- 

 growth, conjugates with the 

 female organ in fertilization. 



POLY-, a prefix derived from the 

 Greek, meaning many. 



PdLYADEL'PHlAN, see Poly- 

 adelphous. 



PdLtADEL'PHOtte, having the 

 stamens united by their fila- 

 ments into three or more sets. 

 See Adelphous, Monadel- 

 phous, and Diadelphous. 



P6LYAD'EN0tJS, bearing many 

 glands. 



PdLYAN'DRlAN, see Polyan- 

 drous. 



P6lyAN'DR0u"S, having twenty 

 or more hypogynous stamens. 

 Compare Icosandrous. 



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