Floristik, Geographie, Systematik etc. 157 



beschränkt wird, als auch Bletilla Rchb. f. als typisch ostasiatische 

 Gattung, mit mehreren nahe verwandten Arten, festgelegt wird. 



Ausser den drei genannten Arten gehören drei weitere von 

 Hayata neuerdings als Bletien beschriebene Arten aus Formosa 

 zweifellos zu Bletilla Rchb. f. Die Gattung Bletilla Rchb. f. umfasst 

 also in der neuen Umgrenzung die folgenden sechs Arten: Bletilla 

 striata (Thbg.) Rchb. f., B. japonica (A. Gr.) Schltr., nom. nov., B. 

 sinensis (Rolfe) Schltr., nom. nov., B. formosana (Hayata) Schltr., 

 nom. nov., B. morrisonicola (Hayata) Schltr., nom. nov., und B. kotoen- 

 sis (Hayata) Schltr., nom. nov. Leeke (Neubabelsberg). 



Smith, W. G., Anthelia: an Arctic-Alpine Plant Association. 

 (Scottish bot. Rev. I. 2. p. 81—89. 1912.) 



Records the identification of the snow-flush (Schnee-tälchen) in 

 Scotland by C. Schröter and E. A. Rubel. The stations obser- 

 ved in August 1911, after a dry summer, on Ben Lawers carried 

 Anthelia sp., Polytrichum sp., Rhacomitrium lanuginosiim, Solorina 

 crocea, Gnaphalium supinum, Salix herbacea, Sibbaldia procumbens, 

 Euphrasia {? scotica). Festuca ovina (vivipara), Carex rigida, etc. 

 The Anthelia is either A. Juratskana or A. julacea, both species 

 recorded for many of the higher mountains. The Scottish snow- 

 flush is regarded as corresponding to the "Schnee-tälchen des Urge- 

 steins" (Brockmann-Jerosch) since the species present are similar 

 to that Vegetation and are distinct from "Schnee-tälchen des Kalk- 

 bodens". A summary is given of the observations of the above- 

 mentioned swiss botanists on the character of the habitat, the 

 floristic composition, and the growth-forms. The evolution of the 

 "Schnee-tälchen" (Rubel) is also traced: the earlier associations are 

 regarded as migratory plant associations (Crampton, Bot. Cent. 119, 

 p. 111) of comparatively short duration owing to changes in the 

 habitat. Later these are replaced by more stable associations invading 

 from adjoining areas e. g. Rhacomitrium, Salix herbacea, Alchemilla 

 alpina, etc. W. G. Smith. 



Smith, W. G., The British Vegetation Committee. (New 

 Phytologist. XI. 3. p. 99-102. 1912.) 



A brief record of chief events of past two years. These include 

 institution of associate-membership, the international phytogeogra- 

 phical excursion (1911), ordinary excursions held during meetings, 

 the position of the Committee as regards phytogeographical nomen- 

 clature at the Brüssels Congress (1910), and publications (see Botan. 

 Centralblatt 116 p. 57 and p. 99, 119 p. 111 and p. 115). 



W. G. Smith. 



Speight, R., L. Cockayne and R. M. Laing. The Mount 

 Arrowsmith District: a study in Physiography and 

 Plant Ecology. (Trans. N. Zealand Inst. XLIII. p. 315—378. 

 5 plates. 3 figs. (1910). 1911.) 



The district is a mountainous one with glaciers lying at the 

 head of the Ashburton and Rakaia rivers (Canterbury N.Z.), 

 and is still imperfectly known. The physiography and geology are 

 dealt with in more detail than is usual with memoirs on plant ecology, 

 and the influence of these factors is kept prominent in the descrip- 



