Botanische Ausstellungen u. Congresse. ] 95 



should further be added a new very tall Grevillea from lower 

 mountains. The rare Rhododendron Macgregorice, has, with the new 

 Aristotelia gaidteriacea and Ternstrcemia Britteniana, been de- 

 scribed some months ago in „Britten's London Journal of Botany" 

 as got at the summit of Mount Yule, where the Vegetation, parti- 

 cularly as regards the numerous Ericece, simulates that of the 

 Owen Stanley Ranges in their higher though not in their highest 

 parts , a new Begonia from the cool heights being among the 

 novelties from there, so an additional Quercus from the middle 

 region. The two last-mentioned genera, as well as lmpatiens and 

 Gnetum, have not yet been discovered in any part of Australia, 

 but perhaps in North Queensland it may yet be possible to reveal 

 also representatives of these for the Australian Flora, as Medinilla, 

 Rhododendron, Agapetes, and Roettlera occur on the highest moun- 

 tains of north-eastern Australia. The botanic collections more 

 recently formed in British New Guinea show further a Piper, a 

 Myristica with nutmegs 2 inches long but probably not aromatic, 

 as additional, so also a Biophytum, a Celosia, Glycine, Gouania, 

 two Medinillas (new.), Loranthus, Nauclea, two species of Homalium 

 representing both sections of that genus, a Fagrcea, an almost 

 Alpine Symplocos of remarkable smallnes, a Scutellaria, Solanum, 

 Petraiovitex (P. Riedelii), Clerodendron, Gnetum (G. microcarpum), and 

 the large Hombronia Pandanus (the P. dubius of some but not of 

 all phytographers). 



Of Elceocarpus we have now eleven from British New Guinea. 

 Several other leading genera occur, represented in similar propor- 

 tions, often, however, the species identical with Malayan or other 

 South-Asiatic congeners. 



As might have been expected, Sir William Macgregor's 

 collections are likewise particularly rieh in Gesneriaceae, Acantha- 

 ceo?, Scitamineai, Orchideai, an Ferns (one monogramme new) mostly 

 of Sundaic affinities ; but it is beyond the scope of this brief 

 document to enter into detail on remarks concerning any of these 

 showy plants , although they comprise many hitherto unknown 

 treasures for future horticulture in any part of the world. 



Botanische Ausstellungen und Congresse. 



Bakteriologisches vom X. internationalen medizinischen 



Kongresse zu Berlin. 



(Schluss.) 



Wolff, Max (Berlin), Ueber Aktinomycose. 



Wolff züchtete Actinomyces -PWze in Gestalt von Kurz- 

 stäbchen auf Agar-Agar und von längeren Fäden auf Hühner- und 

 Taubeneiern bei einem Wachsthumsoptimum von 35° — 37°. Die 

 kokkenartigen Gebilde, die sich in den Culturen einzustellen pflegen, 



13* 



