Floristik, Geographie, Systematik etc. 373 



graph. Journ. Aug. p. 114—140, Sept. p. 213—228, Oct. p. 289— 303, 

 2 maps. 2 pl. 12 figs. 1915.) 



The district lies mainly on the Piain of Cheshire (England^ 

 with an eastward extension to the foothills of the Penn in es. The 

 first part by B. W. Baker deals with the physiography, including 

 the evolution of the present surface by erosion and glaciation. The 

 physiographical and geological features are shown on maps (1 : 100,000). 

 This part, though not botanical, forms a useful introduction to the 

 Vegetation features. The section on Vegetation is an attempt to de- 

 scribe what is a common feature of lowland Vegetation, nameU^ an 

 area extremely varied in its physiography and soils, and also an 

 area much changed by drainage an other Operations incidental to 

 agriculture and pasturage, in an important dairying district. A con- 

 secutive demonstration of the recognized types of British Vegetation 

 does not exist, but by piecing together existing fragments, it has 

 been possible to reconstruct an earlier phase when there existed 

 Quercus woodland of various types, Calhma heath with its derivati- 

 ves, and extensive freshwater aquatic and marsh plant communities 

 associated with numerous „meres" or lakes characteristic of the 

 Cheshire Piain. The dominant type of Vegetation of the present 

 time is grass heath, derived from former woodland, Calluna henih, 

 and marsh, and this is regarded as a transitional stage in the his- 

 tory of the Vegetation, or a temporary equilibrium between the 

 various factors at work upon the area. The illustrations include 

 representative types of Vegetation, diagrams of plant distribution, 

 and a small-scale Vegetation map. W. G. Smith. 



Balfoup, J. B. B., Primula ohconica and its microforms. (Trans. 

 Proc. Bot. Soc. Edinburgh. XXVI. 4. p. 301-344. pl. 21—56. 1914.) 



A very füll and comprehensive account historical, horticultural 

 and systematic of the 14 "species" or microforms of the aggregate 

 called by the author the Ohconico- Listeri section of Frhnula, Four 

 novelties are recorded: P. anihita, P. parva, P. sinolisteri and P. 

 austrolisteri. The article is copiously illustrated by reproductions of 

 photographs of herbarium specimens. W. G. Craib, (Edinburgh). 



Blatter, E., Flora of Aden. (Rec. Bot. Surv. India. VII. 2. p. 

 78—336. 1915.) 



In this, the second part of the Flora of Aden, we have the 

 systematic enumeration of the species. Short descriptions are given 

 of each Family, Genus and species and keys are provided for the 

 genera and species. In many cases authors are quoted "in extenso" 

 for historical, economic, etc. notes on the plant in question. Prece- 

 ding the enumeration is a Synopsis of the Families in which the 

 characters are mostly limited to the recorded species. 



W. G. Craib (Edinburgh). 



Bonnet, E. et F. Pellegrin. Enumeration des plantes re- 

 cueillies par R. Chudeau dans le Nord-Ouest de la 

 Mauritanie. (Assoc. Fran?. Avanc. Sc. C. R. de la 43e Session. 

 Le Havre, 1914. Notes et Memoires. p. 463—469. Paris, 1915.) 



Une premiere liste comprcnd environ 200 especes d^jä signal^es 



