Floristik, Geographie, Systematik etc. 191 



cornia radicans is a coloniser, collecting round its tufts water-borne 

 sand, in the same way as Psamina banks up wind-borne sand; a 

 Chart rcproduced sho^vs that the tufts of Salicornia extend across 

 the sand-banks at right angles to the directions of flow of the tidal 

 water; a later stage in the succession is a close sward of Vegetation 

 occupying a series of hummocks. Salicornia ramosissima is also a 

 pioneer plant, but it colonises black muddy sand. 



Other work in progress includes investigation into the progres- 

 sive changes which soils undergo in the successive phases of coloni- 

 sation, work on transpiration and on osmotic pressure. The short 

 report demonstrates the value of continued Observation on a limited 

 area charted in such a manner that the observer can exactly locate 

 any part of the Vegetation and compare it with previous observa- 

 tions. W. G. Smith. 



Rendle, A. B., E. G. Baker and S. le M. Moore. An account 

 of the plants collected on Mt. Ruwenzori by Dr. A. F. R. 

 Wollaston. (Journ. Linn. Soc. London. XXXVIII. N^. 265. p. 228— 

 278. PI. 16—19. 1908.) 



A large number of new species of plants are described in this 

 paper, which were collected by Dr. A. F. R. Wollaston — whose 

 initals are given wrongly in several places — onMount Ruwenzori 

 from 3 — 15.000 feet. The list of plants is preceeded by an interesting 

 account of the different zones of Vegetation compiled from Dr. Wol- 

 laston's notes. The forest thins out at about 8000 ft. and is replaced 

 by small tree heaths {Erica arhorea) and Podocarpus and so to the 

 Bamboozone which begins at about 8.500 ft. on the Rastern slopes — 

 at about 9.500 ft. the big tree heaths begin their branches being co- 

 vered by lichens. Between 10—11.000 mosses form large cushions on 

 the tree heaths and above 11.000 the tree Senecios, Lobelias begin to 

 be conspicuous, Lobelia Wollastonii growing up to the snow line. 

 Some notes on these long-lived, arborescent Lobelias and Senecios 

 by Mr. Woosnam are appended. Among the new plants is Choan- 

 anthtis a new genus of Ainaryllidaceae represented by a Single 

 species — of new species there are many some of the most striking 

 belonging to the genera Lohelia and Senecio which are well illustrated 

 by Dr. Wollaston's photographs. The high alpine flora shows close 

 affinit}'- with that of Kilimanjaro and Abyssinia. A. W. Hill. 



Rendle, A. B. and J. Britten. Notes on the "List of British 

 Seed-Plants" IL (Journ. of Bot. XLV. p. 433—445. 1907.) 



Since the publication of the 'List of British Seed Plants' by 

 Rendle & Britten, Schinz & P. Hellung have completed a series 

 of papers in the Bull. Herb. Boissier dealing with the application 

 to the Swiss Flora of the revised code of botanical nomenclature. 

 Similar papers have been published by other workers on the con- 

 tinent and suggestions and criticisms have been received from 

 various British Botanists. This extended work and criticism has 

 brought light upon some doubtful points which are discussed in the 

 present 'Notes' in which also the position taken up by some Con- 

 tinental works in reference to certain species is criticized. One of 

 the most important points refers to Linn aeus's Flora Anglica from 

 which certain names have recently been cited, notably that adopted 

 by Groves in the recent edition of Babington's Manual, for the 



