796 TERNS OF NORTH QUEENSLAND, 



P. MEMBRANIFOLIUM R.Br.; P. nigvescfMS ^\. 



On tree. Frenchman's Creek; July, 1913. 



Domin has satisfactorily shown (Prodr., pp.1 76-7) that Blume's 

 P. 7iigrescens is identical with Brown's P. membraiiifolium, which 

 was published 18 years earlier. The nervation clearly separates 

 it from P. pustulatum Forst., and P. scandens Labill. Domin's 

 var. subsimplex I did not find, though my specimens (all from one 

 tree) include a simple frond and a trifid one. These, however, 

 are larger than var. subsimplex. 



P. PUNCTATUM (L.) Sw,; P. irioides Poir. 



Stonev Creek, in large masses on the rocky banks, also on rock 

 in bush, Kocky Hill, Kuranda; July-August, 1913. 



This striking fern was named Acrostichum punctatiim by 

 Linnaeus in 1763, and P. irioides by Poiret in 1804. Thunbergs 

 P. punctatu7n{\7S4:) is now removed to Dryopteris (subgen. Phe- 

 gopteris). A return to Linnaeus' name is but just; it should 

 never have been changed. Bailey's two forms, lobatum and 

 cristatujn, are handsome additions to the bushhouse. 

 Subgen. Grammitis. 

 P. AUSTRALE (R.Br.) Mett.; Grammitis Billardie7'i Willd. 



On rocks and trees, Tully River, above Falls; August, 1913. 



R. Brown and Willdenow published their names in the same 

 year (1810) Christensen gives preference to P. Billardieri; 

 Domin to P. australe. 



P. HooKERi Brack. 



On rocks, very rare. Frenchman's Creek; July, 1913. 



P. albosetosum Bail., I did not find. 



Subgen. Selliguea. 

 P. AM PLUM (F.v.JVJ.) Dom.; Grammitis ampla F.v.M.; Poly podium 

 ellipticum Christ; non Thunberg. 

 Cairns district; mostly round the coastal bases of Bartle Frere 

 and Bellenden Ker; July- August, 1913. 



Domin holds that this fern is endemic in Queensland, and is 

 certainly distinct from P. ellipticum Thunb., to which it is often 

 assigned. This conclusion is confirmed by specimens of P. ellip- 



