PROLIFERATIONS. 261 







them, and pieces of leafless inflorescence 

 (Hyacinth), hypocotyl {Anagallis), and in fact 

 practically any wounded tissue with a store of 

 reserve materials may be made to develop them : 

 thus they have been found arising from the pith 

 of Sea-kale, and are commonly developed from the 

 cut bulb scales of Hyacinths. 



Apospory and Apogainy are particular cases of 

 the production of vegetative buds on the leaves in 

 place of sporangia in Ferns (Apospory), and on 

 prothallia in place of Archegonia (Apogamy), in 

 the latter case induced by dry conditions and 

 strong illumination. 



Notes to Chapter XXVIII. 



In addition to the literature quoted in the notes to Chapter 

 XXVII., the student should consult the works on Forest 

 Botany for the scattered information regarding adventitious 

 buds. A good account may be found in Biisgen, Ban und 

 Leben unserer Waldbdiime, Jena, 1897. 



For Apospory and Apogamy, see Lang " On Apogamy and 

 the Development of Sporangia upon Fern Prothalli," Pkil. 

 Trans., vol. 190, 1898, p. 187, where the literature is 

 collected. 



