662 Floristik, Geographie, Systematik etc. 



n., D. parviflorum DC. forma yiimianense Pamp. f. n,, D. polycarpum 

 D. C. forma hirsutum Pamp. f. n., D. stenophyllum Pamp. sp. n., In- 

 digofera Mairei Pamp. sp. n., /. Mairei var. micrantha , intermedia 

 et proterantha Pamp., Lespedesa Bonatiana Pamp. sp. n., L. erio- 

 carpa DC. var., chinensis Pamp. var. nov. et subvar. polyantha 

 (Tranch.) var. nov. leiocarpa Pamp. f. n., L. Mairei Pamp. n. f., L. 

 trigonoclada Tranch. var. angustifolia Pamp. var. n. et forma inter- 

 media Pamp. f. n., Millettia Bonatiana Pamp. sp. n., M. cinerea 

 Benth. var. yunnanensis Pamp. var. n., M. Duclouxii Pamp. sp. n., 

 M. yunnanensis Pamp. sp. n. et var., robusta Pamp. var. n., Puera- 

 ria edulis Pamp. sp. n., Shuteria anomala Pamp. sp. n., Sh. ferrugi- 

 nea Baker forma pauciflora Pamp. f. n., 5. vestita W. et A. var. 

 villosa Pamp. var. n., Smithia ciliata Royle var. minima Pamp. var. 

 n., Sophora Mairei Pamp. sp. n. En outre, il resulte de cette etude 

 que les especes suivantes appartiennent aussi ä la flore de la 

 Chine: Apios carnea Benth., Butea frondosa Roxb., Crotalaria alata 

 Roxb., Desmodium oxyphyllum D. C, Erythrina arborescens Roxb., 

 Pueraria peduncularis Grah. et Shuteria ferruginea Baker. 



R. Pampanini. 



Perrot, E., Contribution ä 1' etude de la flore marocaine. 

 Premiere liste des plantes recoltees par M. Gentil. 

 (Bull. Soc. bot. France. Sess. extr. tenue en Tunisie en avril 1909. 

 LVI. p. LXXXVIII— XCIII. 1909. (Fevr. 1910).) 



Apres avoir fait l'historique, naturellement tres bref, des explo- 

 rations botaniques au Maroc, l'auteur enumere environ 200 especes 

 recoltees par L. Gentil dans la Chaouia et le pays des Beni- 

 Snassen et determinees par Battandier. J. Offner. 



Raunkiaer, C, Formationsundersögelse og Formations- 

 statistik. (Research and statistics on formations). (Bot. 

 Tidsskr. XXX. 110 pp. 20 ill. Köbenhavn 1909.) 



As (already) well known the author has established a System 

 of growth-forms based upon the degree of protection afforded to 

 the buds surviving the unfavourable season of the year. He has 

 shown that statistics on the percentage of the different growth-forms 

 in different countries may serve as "reagents upon the climates" of 

 the same countries, and that in this way of statistics it is possible 

 to draw biochores or biological boundary-lines. (See B. C. 1907, 1909;. 

 The science characterizing and circumscribing the larger areas in 

 a biological and phytogeographical is by the author named "plant- 

 climatology". From this point of view all species growing in an 

 area are of equal value, no matter if rare or common, the adapta- 

 tions to survive the unfavourable season being independent of the 

 propagating and wandering power of the species. 



On the other hand, in the formations the species are of 

 different value, the common or big ones being the most important. 

 Hitherto, the treating of formations has been mostly subjective, 

 every observer simply estimating the values of the species compo- 

 sing the formations, and thus different observers may estimate 

 differently in the same formation, as it often happens. Short, in 

 this way there is no possibility that the plantformations should be 

 strictlv recognizable neither in time nor in space. The}' ought to be 

 expressed in a more objective way, i.e. in tigures, and this is what 



