688 SUMMARY OF CURRENT RESEARCHES RELATING TO 



CRYPTOGAMS. 



Pteridophyta. 

 (By A. Gepp, M.A., F.L.S.) 



Index Filicum.* — C. Christensen has published parts xi. and xii. of 

 his Index Filicum, thereby bringing that important work to completion. 

 The contents of these parts are : the end of the alphabetical enumera- 

 tion of the species and their synonymy, the entries of which in the whole 

 work reach a total of more than 22,000 ; about ten pages of addenda and 

 corrigenda ; an alphabetical catalogue of all fern-literature, containing 

 descriptions of new genera and species, occupying sixty-eight pages ; a 

 systematic enumeration of literature arranged according to geographical 

 areas, and also according to the genera or groups monographed ; and, 

 finally, a systematic enumeration of the genera, with all synonyms 

 chronologically and systematically arranged. 



Chinese Ferns.f — J. Gr. Baker and C. H. Wright publish descrip- 

 tions of twenty-six new species of Pteridophyta which, with two 

 exceptions, were collected in China by Henry and others. 



Ferns of Madagascar.! — J. Palacky issues a catalogue of the ferns 

 of Madagascar for the use of collectors and others. 



Ferns of the Philippine Islands.§ — E. B. Copeland publishes an 

 account of 76 new Philippine ferns, 43 of which are new to science, and 

 the rest additions to the Philippine flora. Hillebrand's neglected genus 

 Schizostege is revived and fortified by the addition of two new species ; 

 it is allied to Pteris and Cheilanthes. Prosaptia of Presl is maintained 

 as an ally of Polypodium ; and another near ally is Acrosorus, a new 

 genus proposed for a few species which had been placed in Davallia. 

 Thayeria is a new genus of close affinity to Drynaria. 



Sicilian Ferns.|| — F. Cortesi gives a list of twenty-five Pteridophytes 

 preserved in the old herbarium collected by Count Cesare Borgia (1776- 

 1837), formerly kept at Velletri and recently transferred. The specimens 

 were collected in Italy and Sicily. 



Ferns of Christmas Island.^ — H. N. Ridley, in the account of his 

 expedition to Christmas Island, gives a list of twenty-five Pteridophyta, 

 three of which are endemic, one being a new species of Selaginella. 



Ferns of Florida.** — A. A. Eaton gives an account of the Pterido- 

 phytes observed by him in southern Florida during three excursions. 

 These amount to 56 species, 13 of which are additions to the flora of 

 the United States, and one is new to science. New descriptions are 



* Copenhagen : Hagerup, 1906, pp. i.-lx. and 641-744. 

 t Kew Bull. Misc. Information, 1906, pp. 8-15. 

 I Filices Madagascarienses. Prag : Frank, 1906. 

 § Philippine Journ. of Sci., i. Suppl. 2 (1906) pp. 143-67 (28 pis.). 

 || Annali di Botanica, iv. (1906) pp. 260-2. 



i Journ. Straits Branch R. Asiatic Soc, No. 45 (1905) pp. 245-8. 

 ** Bull. Torrey Bot. Club, xxxiii. (1906) pp. 455-86. 



