Growth and Development of the Banana Plant: 3. A. The Origin of the Inflorescence and the Development of the Flowers: B. The Structure and Development of the Fruit

In this paper, which is presented in two parts, the growth anddevelopment of the banana plant have been examined from thestandpoint of the origin of the inflorescence and the developmentof the flowers (Part A) and the structure and development ofthe fruit (Part B). First the main centres of growth in thesestructures are located and the manner of their development ispresented. Thereafter, attention is focused upon the salientevents which determine the alternative courses of developmentwith a view to designating the chemical and physiological stimulithat may be required.     

Occurrence of Endosperm Haustorium in Cannabis sativa L.: With thirteen Figures in the Text

The development and structure of the chalazal endosperm haustoriumin Cannabis sativa are described. The endosperm is nuclear anda haustorium is formed at the chalazal end. The latter remainsfree nuclear throughout. Enucleate vesicles appear in the upperpart of the endosperm but finally they merge with the cytoplasmof the haustorium. As the embryo reaches maturity it occupiesthe whole seed cavity, the haustorium collapses and the endospermpersists only as a thin layer.