ISO THE JOURNAL OF IKiT.V.W 



If the plant, therefore, is placed under II . ciliata, it should stand 

 thus : II. ciliata Bab. var. angustifolia Pugsley in Jonrn. Bot. lii. 

 331 (l!)l-l) = .ff. glabra (var. vera and var. subciliata) Babington, 

 Prim. PL Sarn. 39 (1839); Lester-Garland, PL Jersey, 73 (1903); 

 nun Linn.=.H~. ciliata var. subciliata Moss in Camb. Br. Fl. iii. 10 

 (1920). This form does not seem to have been mentioned elsewhere 

 by Babington, and I cannot find any allusion to it, even indirectly, 

 by Syme or Hooker. Dr. Moss's remark that British botanists 

 know quite well the plant intended seems very questionable. A 

 sequence of this treatment is that under Hern i aria glabra L. 

 Dr. Moss adopts the name II. glabra var. vera Bab. PL Sarn. 39 

 ( 1839) to represent the specific type, thus making the usual form of this 

 Jersey perennial stand for the annual plant of the Eastern Counties — 

 a course that can only be defended owing to the lack of precision in 

 Babington's description. — H. W. Pugsley. 



Dbaba muralis in Gloucestershire. Swete (Fl. Bristol, 

 p. 8: 185-1) recorded this from an old quarry at Henbury, where 

 Miss Powell has " found it plentifully for several years past " ; 

 Mr. White (Bristol PL 155 : 1912) has seen specimens collected by 

 her in 1834, and St. Brody's herbarium contained a specimen from 

 the same locality gathered in 1871. Mr. White (/. c.) doubted the 

 probability of its nativity there, " many miles from an undoubted 

 native locality " : I have however a record, dated 1908, from Kings- 

 cote, Nailsworth, and the British Flora gives a good many Somerset 

 localities. The probability of D. muralis being native in v.c. 3L has 

 been recently increased by its discovery by Mr. J. W. Haines, on an 

 old broken down wall, in an out of the way part of the Forest of 

 Dean. It is in some quantity here, and may perhaps be found on 

 native soil in the neighbourhood : no other introduced plants were 

 observed with it, except Sedums and the usual denizens of a wall 

 flora.- H. J. BlDUELSDELL. 



REVIEWS. 



A Handbook of the British Lichens. By Annie Lorrain Smith, 

 P.L.S. 8vo, cloth, pp. 158, with 90 figures in the text. 

 British Museum (Natural History), London, S.W., 1921. 

 Price 6s. Gd. net. 



This volume fills a gap which has been very evident for many 

 years to those interested in lichens. After a brief introduction, in 

 which some aspects of the morphology, histology, and ecology of 

 lichens are considered, the book becomes a useful and much needed 

 key for placing these plants under their proper families, genera, and 

 species. Hitherto British lichenologists have made keys for them- 

 selves, or have used foreign ones. There are many disadvantages in 

 using a clavis intended for another country, which necessarily includes 

 plants that are absent from our islands while it omits some that 

 are present and neglects the peculiarities of our island flora. 



As a test of the value of the book, I took a batch of lichens 

 which I had recently named, and in every case except one the use of 



