BY W. W. WATTS. 757 



field. Students of the fern-life of Australia, especially of the far 

 north, will find Dr. Domin's work, despite its tendency to, in my 

 opinion, undue division of species, quite indispensable. Of the 

 help derived from the various publications of Mr. F. M. Bailey, 

 it is unnecessary to speak. I have only to express my great 

 indebtedness to his published works, and my personal thanks for 

 much kindness received at his hands. 



I am greatly indebted also to Captain van A. van Rosenburgh's 

 "Malayan Ferns " (1909). 



In recent years, many changes have been made in the nomen- 

 clature of the ferns. This is due to historical researches into 

 the earliest specific names, the justice of a return to which must 

 be acknowledged, and also to the inevitable splitting up of such 

 large genera as Aspidium and Folypodium. Probably the most 

 notable change made has been the discarding of the distinction 

 between Aspidiece and Polypodieoi, based upon the artificial char- 

 acter of the presence or absence of an indusium. 'J'he genus 

 Dryopteris {Aspidiece) contains both indusiate and non-indusiate 

 forms ; but a question that will certainly call for attention, 

 sooner or later, is whether the genus Dryopteris is not really too 

 comprehensive. 



The species herein recorded were all collected by myself, except 

 where otherwise stated. 



HYMENOPHYLLACE^. 



Trichomanes L. 



Subgen. Hemiphlehium Prantl. 



T. MOTLEYi V. d. Bosch. 



Street's Bush, Kuranda; and Josephine Creek, Bartle Frere; 

 July, 1913. 



T. viTiENSE Bak. 

 Near Tully Falls; August, 1913. 



T. BiMARGiNATUM V.d.B.; T. yaudinense Bail. 

 Street's Bush, Kuranda, and Frenchman's Creek; July, 1913. 

 Some ditiiculty has arisen over this plant and its allies. Dr. 

 Christ, in "Die Farnkraiiter der Erde"(1897), omits 2\ bimar- 



