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Orowing régions. 



Polarity. 



Régénération. — Repair of wounds. 



Rejuvenescence. — Qermination. 



Sénescence, degeneration, and deeth. 



Differentiation and development of members. 



Other grovvth processes and relations. 

 Repair of waste. 

 Conditions for nutrition. 



Water culture média, etc. 

 Longevitv. 



Sécrétion and excrétion. 



Philosophy, content, terminology, etc. 



Union of sepals. — Union of petals. — Union of stamens. — Union of pistils. 

 Other unions. — Synophthy. — Synanthody. — Synanthy. — Syncarpy. — Svns- 

 permy. — Adhésion. 



Division and séparation, adesmy. 

 Fission. 



Division of roots. 



Diplasy, division of stems, cyclochorisis. 

 Division of leaves. 



Séparation or division of sepals. — of petals. — of stamens. — of other like 

 organs. — Séparation of unlike organs. 



Displacement or ectopy. 



Displacement of thalloid structures, 

 Adventitious roots (abnormal). 

 P-olification, diaphysis, ecblastesis. 

 Coryphylly, anaereticus, apostasis, autophyllogeny. 

 Displacement of sepals, — of petals, — of stamens, — of pistils. 

 Other displacements. ^ Gemmiparity, apogamy, heterotaxy, archianthemuni, honio- 

 topy. 



Metamorphy. 



Change of foliage leaves to other structures. 

 Petalody, staminody, etc., of sepals, calycanthemy. 

 Phyllody, sepalody, staminody, etc., of petals. 



Phyllody, sepalody, petalody, pistilody, etc., of stamens. 

 Phyllody, sepalody, petalody, staminody, etc., of carpels. 

 Exchange of other organs, salpinganthy. 



Changes of nurnber. 



Structure of specialized végétative cells. Glands, guard-cells, auxiliary cells, etc. 



Structure of reproductive cells: Quiescent spores of lower plants. — Zoospores. 

 — Gamètes not sexually differentiated. — Sperms. — Eggs. — Spore-mother- 

 cells. — Coenotytes et coenogametus. — Reproductive cells in particular 

 groupes. 



