BY W. W. WATTS. 796 



Siibgen. Pleopeltis, 

 P. BROWNii Wikstr. ; P. attemiatum R.Br., non Willd. 

 Cairns district; July -Aug., 1913. 



On a felled tree, near Malanda, I found large quantities of a 

 form of this fern, with the fronds throughout narrower and less 

 coriaceous than those of the typical plant. It may be allowable 

 to regard it as forma gracile (f. nov.). 



P. suPERFiciALE Bl., var. austraUense Bail. 

 On tree in ^'Falling," Major's Homestead, Ravenshoe; Aug., 

 1913'. 



This Queensland variety differs from the type in having the 

 sori limited to the upper half of the leaf, and the lamina reaching 

 almost to the base of the stipes. 



P. SIMPLICISSIMUM F.v.M. 



On trees in " Falling," Ravenshoe, and at the Tully Falls ; 

 August, 1913. 



Domin distinguishes var. normalis (fronds coriaceous, the 

 sterile mostly lanceolate or linear-lanceolate, the fertile long- 

 attenuate-linear, primary veins conspicuous, the rest obsolete) 

 from the var. wuru7iuran, var.nov. (texture thinly herbaceous — 

 not coriaceous — veins and venules strongly prominent, sterile 

 fronds rhomboid-lanceolate, long acuminate, margin subentire). 

 He holds Bailey's fig.(Liths., t.l56) to be identical with var. 

 wurunu7'an, which he found to be widespread on Bellenden Ker, 

 while he had not observed the normal type. F. von Mueller 

 published his species first (Frag., vii., 120) as P. lanceola Mett., 

 but, on Kuhn's authority, distinguished it on ^.156 {op. cit). 

 Domin recognised two forms of var. normale, viz., (a) margin sub- 

 entire (obsoletely crenate); and (b) margin cartilagineous, con- 

 spicuously crenate. While Domin's var. wurunuran has wide 

 sterile leaves like f."b" of var. normale, they are said to be long- 

 acuminate, while in normale (f."b") they are " broadly oblong 

 and obtuse." My specimens, according to this, belong to var. 

 loiii'unuran Dom., and, in the absence of specimens of the specific 

 type, must be so named. 



