Polyanthous 



OF BOTANICAL TERMS. 



Polymorphism 



P6lyAn'THOu"S, having many 

 flowers, especially if in one 

 head. A polyanthous invo- 

 lucre, for example, is one in- 

 vesting many flowers. 



PdLYCAR'PELLARY, said of a 

 pistil consisting of more than 

 one leaf or carpel. 



PdLYCAR'PiC, fruiting succes- 

 sively; sychnocarpous. Com- 

 pare Monocarpic. Sometimes 

 improperly used for Apocar- 

 pous. 



PdlYCAR'POu'S, used both for 

 Polycarpic and Apocarpous. 

 Compare Monocarpic and 

 Monocarpous. 



PdLYgEPH ALOtJS, bearing many 

 heads. 



PdLYCLA'DlA, see Polyclady. 



P6LYCLA'D0u"S, having abnor- 

 mally numerous branches. 



PdL'YCLADY, an excessive devel- 

 opment of twigs or branches; 

 plica. Due either to disease 

 or teratology. 



PdL'YCLONY, an old term for 

 Polyclady. 



POLYCdC'COtJS, of several cocci. 



PCLYCOTYLED'ONOu'S, having 

 more than two seed-leaves. 



POLYCdTYLED'dNY, an abnor- 

 mal increase in the number 

 of cotyledons. 



PdLYDEL'PHOu'S, see Polyadel- 

 phous. 



P6LY EM'BRYONATE, having 

 more than one embryo in a seed. 



P6LYEM BRYONY, the produc- 

 tion, either abnormally or 

 regularly, of more than one 

 embryo in a seed. The term 

 has been restricted to cases 

 where the additional embryos 

 arise without fertilization out- 

 side the embryo-sac, but there 

 seems to be no good reason for 

 the restriction. 



PdLYFLO'ROu'S, see Multiflo- 

 rous. 

 PClYGA'MIan, see Polygamous. 



POLYGAMO Dlffi'CIOtlS, see Dice- 

 ciously Polygamous. 



P6LYG'AM0u"S, producing male 

 and hermaphrodite, or female 

 and hermaphrodite, or male, 

 female, and hermaphrodite 

 flowers on the same or on dif- 

 ferent individuals; i.e., having 

 both perfect flowers and those 

 of one sex. 



PdlYG'ONOUS, having many 

 angles, knots, or nodes. 



P&LYGYN(E'CIAL, containing the 

 gyucecia of several flowers, as 

 a collective fruit. 



PflLYG'YNOtJS, having many 

 styles or pistils. 



PdLYHE'DRON (pi. Polyhe'dra), 

 in Hydrodictyon, a special 

 angular cell with horn-like 

 processes, formed by the 

 swarm-cells produced in the 

 zygospore, and within which 

 a new ccenobium is developed. 



POLYM'EROu'S, having many 

 parts, or more than one: said 

 of a flower with more than 

 one organ in each whorl, or 

 of a whorl containing more 

 than one organ. Compare 

 Monomerous. 



p6lYM6r'PHIc, see Polymor- 

 phous. 



PdLYMdR'PHiSM, (l) a condition 

 in which different individuals 

 of the same species have differ- 

 ent forms, as in many dioecious 

 plants; (2) the state of passing 

 different stages of existence 

 under distinct forms which 

 might be mistaken for differ- 

 ent species, as is the case with 

 hetercecious and some other 

 fungi; pleiomorphism. See 

 Metagenesis, Alteration 



137 



