INDEX FILICUM 35 



(Fl. Orient, ii. 579) and other authorities who have not totally 

 ignored the name have reduced Koch's V. monosperma to V. cassu- 

 bica L., there seems no reason why the name should not be adopted 

 for the new vetch from Porquerolles. — H. S. Thompson. 



Aspicilia Lilliei. — The following description of a new British 

 lichen by Dr. M. Bouly de Lesdain appears in the Bulletin de la 

 Societe Botaniqxie de France, vi. 515 (1906) : — " Aspicilia Lilliei 

 B. de Lesd. nov. sp. Ecosse; Caithness, Ousdale supra saxa 

 granitica. Leg. Reverend D. Lillie, 1905. Crusta tartarea, 

 circa mm. # 5 crassa, rimoso-areolata, alba, intus flavida, K — C 

 KC — . Apothecia niinuta, atra, in areolis immersa, rotunda- 

 deformia, vel lirell&forinia. Epith. olivaceum, hypoth. incolora- 

 tum, paraphyses gelatinoso-concretaB, asci anguste clavati. SporsG 

 4-6-nees, ellipsoidea3, 13-15 /* lat. 5-6 crass. Gelat. hym. I, 

 intense cserulescit. Oette espece a tout a fait Taspect de V Aspicilia 

 calcarea dont elle differe par son thalle jauni int6rieurement, et 

 par ses spores. ,, In the same paper (p. 517) Rhizocarpon Lotum 

 Stizenb. collected by Mr. Lillie in Caithness in 1905 is noted as 

 new for Britain and described from Mr. Lillie's specimens. 



NOTICES OF BOOKS. 



Index Filicum sive Enumeratio omnium generum specierumque Filicum 



et Hydropteridum. ab anno 1753 ad annum 1905 descriptorum 

 adjectis si/nonymis principalibus, area geographica etc. By Carl 



Christensen. Hafniae : apud H. Hagerup. 1906. Fasc. xi. 

 pp. 641-704 ; price 3s. 6d. Fasc. xii. pp. 705-744, i-lx ; 

 price 5s. 6d. 



This important contribution to the literature of ferns has been 

 in process of publication since the summer of 1905, the parts 

 appearing at frequent intervals. With the issue of parts xi. and xii. 

 it is brought to completion. The work is divided into three 

 sections, which deal with the genera, species, and literature re- 

 spectively. By far the largest of these is the second section, which 

 consists of an alphabetical enumeration of the species and their 

 synonyms; it occupies 670 pages, it necessitated upwards of 22,000 

 entries, and it comprises 5940 species. It was the first part of 

 the book to be published, and was followed by the third section, 

 which consists of a catalogue of all fern literature that contains 

 descriptions of new genera or species. This bibliography occupies 

 74 pages, and is presented in three aspects : first, an alphabetical 

 list of authors with the titles and dates of their papers (the abbre- 

 viated citations employed throughout the work receive here their 

 explanation) ; secondly, a geographical grouping of the floras under 

 continents, countries, islands (this cannot fail to be of great assis- 

 tance to those who are in search of local floras, though all lists are 

 excluded which do not contain descriptions of novelties) ; and, 

 thirdly, a list of genera, with the special monographs which have 

 been written upon them. Finally, we have that section of the 



