VOL. XVIII, PP. 239-240 DECEMBER 9, 1905 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW NAME FOR KAULFUSSIA BLUME, A GENUS 

 OF MARATTIACEOUS FERNS. 



BY WILLIAM R. MAXON. 



By permission of the Secretary of the Smithsonian Institution. 



The generic name Kaulfussia given by Blume in 1828 to a 

 Javan fern described earlier in the same volume 'as Aspidium 

 aesculifolium is invalidated by Kaulfussia Dennstedt (1818) 

 applied to a genus of Polygalaceae and by Kaulfussia Nees (1820) 

 for a genus of Compositae. Subsequently the name Macrostoma was 

 associated in manuscript, by Griffith, with a supposed second 

 species (assamica) of the same genus ; but Macrostoma appears 

 never to have been formally published and is in any event un 

 tenable. So far as we know no other name has ever been pro 

 posed for this peculiar genus of marattiaceous ferns, and we have 

 accordingly renamed it as below, in honor of Herr Carl Christen- 

 sen, of Copenhagen, the first part of whose valuable Index Filicum 

 now issuing we have already had occasion to notice.* 



Christensenia nom. nov. 



Kaulfussia Blume, Enum. PI. Jav. 2 : 260. 1828. Not Kaulfussia Denn 

 stedt, Schliiss. Hort. Ind. Malabar. 30. 1818. Not Kaulfussia Nees, 

 Hor. Phys. Berol. 53. pi 11. 1820. 



Macrostoma Griffith, A siat. Researches 19 J : 108. 1836. Not Macrostoma 

 Hedwig, Gen. PI. 102. 1806, which is Macrostema Persoon, Synop. PI. 

 1 : 185. 1805. Not Macrostomium Blume, Bijdr. Fl. Nederl. Ind. 335. 

 /. 37. 1825. 

 * Science, II. 22:2(17-269. Sept. 1, 1905. 



r,C PKOC. BIOL. Soc. WASH., VOL. XVIII, 1905. (239) 



