Obituary Notices. 1 9 



styled " Plantee Lorentzianse," and appeared in 1874, which 

 was followed this year (1879) by another treatise, " Sym- 

 bolae ad Floram Argentinam," This treatise on the plants 

 of the Argentine Eepublic was founded " on the collection 

 prepared through the influence of the Government at Buenos 

 Ayres, by Professors Lorentz and Hieronymus, as well 

 as on the Herbaria of other naturalists preserved in the 

 Museum at Gottingen." A short but interesting criticism 

 of these works appears in the " Botauische Zeitung" of the 

 1st of August 1879, where any one can examine the differ- 

 ences between them, and the mode in which the variation 

 in the number of species can be explained. In the " Sym- 

 bolfe " five entirely new genera have been added, — viz., 

 DcrmatoplnjJIum, Cascaronia, Garagicandra, Dynoseris, and 

 HaJochloa, — belonging respectively to the natural orders, 

 Zygophyllacece, Leguminosce, Terebinthacece, Mutisiacece, and 

 Graminece. It was never Grisebach's intention to write 

 a complete Flora of this district, but rather to give new 

 genera and species, so far critical cases ; but on both 

 occasions there was a short but very significant general 

 view of botanico-geographical species which is one of the 

 most important parts of the treatise. 



Yet another work was in contemplation by this inde- 

 fatigable author, viz., a Flora of all Europe, and was 

 already progressing under his diligent hand, for he thought 

 he had a call to prepare such a work, as he had a personal 

 intimate acquaintance with most of the European regions of 

 vegetation, and as he possessed an unusually complete 

 herbarium, seeing that scarcely any really European 

 species were wanting in it. While thus engaged his 

 April holidays arrived, which he spent most pleasantly 

 with his family in visiting Eome and Upper Italy, but 

 through the peculiar inclemency of the weather this 

 year he cauglit a cold which gradually increased in severity, 

 and closed his earthly career in the sixty-sixth year of his 

 age. The deepest sorrow pervaded all Gottingen when 

 the sad news was communicated there. By this mournful 

 event a heavy blow has been inflicted on botanical science, 

 for Grisebach was assuredly its ornament and boast. "We 

 specially deplore the loss which our Society has sustained, 

 for he was one of our esteemed Honorary Fellows. His 



