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Fraipont-Nessonvaux. — Société botanique. 

 Gand. — Natuurwetcnschappelijk Genootscliap. 

 Hiiy. — Cercle des naturalistes liutois. 



» Société d'horticulture et de botanique. 



Mons. — Société des sciences, des lettres et des arts du 



Hainaut. 

 Verviers. — Cercle des sciences naturelles. 



Brésil. 

 Rio-de- Janeiro. — Museu nacional. 



Canada. 

 Toronto. — Canadian Institute. 



Danemark. 

 Copenhague. — Botaniske Forening's Kjôbenhavn. 



États-Unis. 



Boston. — American Academy of Arts and Sciences. 



» Society of Natural History. 



Indiaîiapolis. — The Botanical Gazette. 

 Manhattan. — Journal of Mycology. 

 NeW'Haven. — The American Journal of Science. 



» Transactions of the Connecticut Academy of 



Arts and Sciences. 

 New-York. — New-York Microscopical Society. 

 Salem. — Peabody Academy of Sciences. 

 San- Francisco. — California Academy of Sciences. 

 St-Loiiis. — Academy of Sciences and Arts. 

 Washington. — Smithsonian Institution. 



