1854.] Linnean Society. 321 



nutriment and life. The principal of these memoirs, the result un- 

 questionably of a long series of careful observations and of much 

 philosophical discrimination, is entitled ' Recherches generales sur 

 rOrganographie, la Physiologie et I'Organogenie des Veg^taux,' 

 Paris, 4to, 1841. It was during his visit to the Isle of Bourbon, on 

 his second voj^age in 1836, that he received the intelligence of his 

 election into the Botanical Section of the Academy of Sciences at 

 Paris ; and his election as a Foreign Member of the Linnean Society 

 dates from 1837. In later life he suffered much from the deteriora- 

 tion of his health by the exposure and fatigues of his different 

 voyages ; and he died at Paris on the 1 6th of January in the 

 present year. 



Adrien de Jussieu, M.D., Professor of Rural Botany in the Jardin 

 des Plantes, the only son of Antoine-Laurent de Jussieu, the 

 celebrated author of the ' Genera Plantarum' (himself the nephew 

 of Bernard de Jussieu and of two other distinguished botanists), was 

 born in Paris, on the 23rd of December 1797. He commenced his 

 scientific career by the study of medicine, but soon directed his 

 attention more particularly to the accessory sciences, and after a 

 while devoted himself, like his illustrious predecessors, entirely to 

 botanical pursuits. His first important publication was his inaugural 

 thesis, ' De Euphorbiacearum generibus medicisque earundem viri- 

 bus tentamen,' Paris, 1824, 4to, which contained a complete generic 

 monograph of that extensive and difficult family, his general ob- 

 servations on which were at the same time published in the ' Me- 

 moires du Museum d'Histoire Naturelle,' under the title of " Con- 

 siderations sur la Famille de Euphorbiacees." He next occupied 

 himself in the preparation of monographs of several important 

 families of plants, among which may be especially noted Ternstrce- 

 miacecB, Rutacece, Meliaceee, and Malpighiacece. To his investigations 

 of the latter family he appended a remarkable dissertation on their 

 structural peculiarities, and in particular on the singularly ano- 

 malous character of many of their stems. On the return of M. 

 Auguste de St.-Hilaire from Brazil, he became associated with that 

 botanist in the publication of the ' Flora Brasilise Meridionalis,' to 

 which he contributed the characters and descriptions of numerous 

 families. In these various works he established his character as a 

 systematic botanist of the highest class. His " Memoire sur les 

 Embryons Monocotyledones," published in 1839, in the ' Comptes 

 Rendus' of the Academy of Sciences, and in the ' Annales des 

 Sciences Naturelles,' is remarkable for giving, in a few pages, with 

 great precision and clearness of expression, the results of a most 



