336 



GENERAL PLANT PATHOLOGY 



Fission. — A division of a normally simple organ. 



Frondescence.^ — The prolifer- 

 ation of a normally reduced petal 

 to a foliage leaf with lamina. 



Gamomery (Engelmann). — 

 The condition in which the 

 normally distinct petals are 

 united into a gamopetalous 

 corolla. 



Gemmiparity. — The condtion 

 of leaves which develop adventi- 

 tious buds. 



Gymnaxony (Ch. Morren).— 

 The condition in which the 

 placenta protrudes through the 

 ovary of the flower. 



Gynophylly (Ch. Morren). — 

 The transformation of a carpel 

 into a foliage leaf. Phyllomor- 

 phy of the ovary. 



Hemitery. — An abnormality 

 of elementary organs, or of axial 

 appendages. 



Heterogamy (Masters). — An 

 alteration in the position of the 

 sexual organs. 



Heteromorphy (Masters). — 

 Irregular formation of an organ. 



Heterotaxy. — This term is 

 used by Masters for the cases in 

 which a new organ, or structure, 

 appears in unusual places, as leaf 

 buds and flower buds on a root. 

 Later authors (Freyhold) use the 

 word in an entirely different sense 

 for the inversion of the floral plan. 



Homotypy. — The develop- 

 ment of an organ, or of any 

 structure in the same place, where normally another one originates. 



Fig. 133. — Fasciated stem and fruits o^ 

 the poppy {Papaver). {Drawing by Alice M- 

 Russell.) 



