Floristik, Geographie, Systematik etc. 99 



Heide, F., Observations on the corrugated rim of Nepenthes. 

 (Bot. Tidsskr. XXX. 2. 15 p. 16 fig. Köbenhavn, 1910.) 



Hitherto the development of the collar of the Nepenthes-'^\\.ch€:r 

 has been incorrectly described. The primary pitcher- margin is to 

 be found at the outer margin of the adult collar, while the inner 

 margin of this organ, which later on is furnished with marginal 

 glands, arises as a circular swelling on the inner side of the young 

 pitcher. The corrugated surface of the rim must, consequently, he 

 considered as part of the inner wall, which thus appears in three 

 modifications: i. corrugated surface of the rim, 2. conducting, and 

 3. detentive surface of the pitcher cavity. 



Stomata are found on the inner side of the lid, and peltate 

 hairs arise on the outer surface of the pitcher when the long 

 branched hairs developed on the young pitcher are falling of. 



The collar bears three forms of epidermal cells: 1. ordinary 

 cells like those on the outer surface of the pitcher, 2. thick-walled 

 lignified cells with overlapping awlshaped prolongations, 3. flat 

 cells like those of the conducting surface. The collar is different in 

 different species, e. g. in the inner part being short or long, and 

 such morphological features must be taken in account in the syste- 

 matic treatment of Nepenthes. In this as in other respects the author 

 disagrees with Macfarlane. Ove Paulsen. 



Jumelle, H. et H. PerFier de la Bathie. Les Clusiac^es du 

 Nord-Ouest de Madagascar. (Ann. Sc. Nat. Bot. XI. p. 255— 

 285. 1910.) 



Les Clusiacees, qui fönt l'objet de ce memoire, proviennent de 

 l'Ambongo, du Boina et de la region, situee plus au N., com- 

 prise entre la Sofia et Ambato. Le genre T sim atimia est 

 cr^e pour le Rheedia PervUlei PL et Tr., que Vesque a regarde 

 plus tard comme un Gavcinia^ cette plante, qui presente des varia- 

 tions florales extraordinaires, avoisine les genres Garcüiia, Rheedia 

 et Ochrocarptis , mais il est cependant impossible de la rattacher ä 

 Tun ou ä l'autre. Outre le 7s. PervUlei Jum. et Fern, les auteurs 

 attribuent au genre Tsimatiniia une espece nouvelle, le Ts. pedicel- 

 lata Jum. et Perr., dont les fleurs </ sont seules connues. Les autres 

 nouveautes decrites sont: Rheedia calcicola Jum. et Perr., Rh. areni- 

 cola Jum. et Perr., Ochrocarpus sangiiineus Jum et Perr., Garcinia 

 ochrocarpoides Jum. et Perr., G. verrucosa Jum. et Perr., G. crassi- 

 flora Jum. et Perr., G. asterandra Jum. et Perr., Calophyllum rece- 

 dens Jum. et Perr., les Ochrocarpus angustifolius PI. et Tr. et 0. 

 eiigenioides PI. et Tr. sont egalement etudiees et leurs descriptions 

 completees. La plupart de ces especes sont appelees tsimatiinanoyita 

 par les Sakalaves; presque toutes ont en effet le meme port ar- 

 borescent et secretent une substance resineuse jaune d'or, ce qui 

 explique cette commune denomination. J. Offner. 



Moss, C. E., The fundamental Units of Vegetation. (New 

 Phytol. IX, p. 18 — 53; reprinted as Pamph. 2, Committee for 

 british Vegetation. 1910.) 



The sub-title „Historical development of the concepts of the 

 plant association and the plant formation" almost explains the scope 

 of this contribution on the nomenclature of ecological plant-geography. 



