406 Floristik und Systematik der Phanerogamen. 



ceae, which are confined to South Africa, but are poor in species. 

 Erica with 92, Mesembrianthemum with 61, Aspalathus with 50 and Disa 

 with 47 species alone constitute nearly 12°/o of the entire specific total, 

 whilst 204 of the entire number of 485 genera are represented by one 

 species only and to these latter the greatly diversified nature of the 

 flora is due. The entire absence of representatives of Myrtaceae, Apo- 

 cynaceae and Acanthaceae is very noticeable, whilst the Rubiaceae are 

 only represented by 15 species. Amongst the Orchids the abundance is 

 due mainly to members of the tribe Ophrydeae, all of them being ter- 

 restrial. 



As regards the relation of the peninsula flora to that of the neigh- 

 bouring regions, there is a general identity with that of the South Western 

 Region. On the eastern side a gradual transition to the flora of the sub- 

 tropical region can be traced and the relative abundance of Orders and 

 genera in the two regions is shown by means of tables. Far less 

 marked are the relations to the Karroo region, which bounds the south 

 western region on its north and north-east sides, for here the succu- 

 lent Orders occupy a much more prominent position, whilst the Protea- 

 ceae, Ericaceae, Orchidaceae etc. are only represented by a few species. 

 — There are but slight evidences of connection between the Penin- 

 sula flora and that ofEurope; European species are generally not 

 found on the higher mountain summits, where they might be expec- 

 ted. The occurrence of many species of Oxalis is the only sign 

 of any affinity with the South American flora and nothing essential 

 is added to what Hooker has pointed out with respect to the marked 

 resemblance to the flora of Australia; it should be noted however, 

 that the Orchidaceae represented in the two regions belong to different 

 tribes, the Ophrydeae only possessing 2 species in Australia. — Finally 

 the question of the effect of bush fires on the Vegetation is discussed 

 and the view is expressed that this tends to the destruction of species 

 and the consequent greater uniformity, not necessarily to the greater 

 usefulness, of the Vegetation. 



In the subsequent list the habitat, relative frequency and months of 

 ilowering of each species is given; and in the case of rarer species the 

 stations, in which they have been gathered, are added. Finally (p. 366. 

 —372) a list of the number of each species in each genus is included. 



F. E. Fritsch. 



CHENEVARD, P., Orchidees des environs de Geneve. (Bull. 



Herb. Boiss. II. 1902. p. 1022—1023.) 



Aufzählung einer Reihe seltener Orchideen, hauptsächlich Bastarde, 

 der Flora von Genf, welche von Klinge bestimmt wurden. 



M. Rikli. 



CHODAT, R., D e u x Scabiosa nouveaux pour la flore de 



la Haute Savoie. (Bull. Herb. Boiss. T. II. 1902. 



p. 116.) 



Es sind «S. pachyphylla Gaud (= 6 1 . patens Tord) und 5. suaveolens 

 Desf. von den Dünen von Sciez bei Yvoire am Genfersee, die 

 beiden nächst bekannten Fundorte der letzteren Art liegen bedeutend 

 weiter nördlich (Umgebung Basel) oder viel südlicher (Dep. Isere 

 u. Ain). M. Rikli. 



CHODAT, R., Sur la flore du Val de Ferret valaison. 



(Bull. Herb. Boiss. II. 1902. p. 964—967.) 



Regionale Gliederung der Pflanzenwelt dieses valesischen Hoch- 

 thals mit Hervorhebung der seltenen oder pflanzengeographisch inter- 

 essanten Arten. M. Rikli. 



