436 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Systematic Botany. 



Hymenophyllum dilatatum, Swartz. 



Trichomanes dilatatum, Forst., Prodr., n. 467 (1786). Hymenofhyllum dila- 

 tatum, Swartz, Gen. et Sp. Fil., 100 (1801) ; Hook, f., Handb. N.Z. 

 Fl., 354 (1864). 



Auckland Islands : Hooker. (Throughout New Zealand ; Polynesian islands ; 

 Java.) 



I have seen no specimens from the southern islands. Hooker does not quote it 

 in the " Flora Antarctica," but includes it as a member of the fiorula in the Handbook. 



Hymenophyllum demissum, Swartz. 



Trichomanes demissum, Forst., Prodr., n. 468 (1786). Hymenophyllum 

 demissum, Swartz, Gen. et Sp. Fil., 180 (1801) ; Hook, f., Fl. Antarct., 

 i, 104 (1844). 



Auckland Islands : Woods near the sea, often covering the ground in large 

 patches; Hooker. (Throughout New Zealand ; Polynesian islands ; Java.) 



Sir J. D. Hooker remarks that his specimens are smaller than those collected 

 in the North Island of New Zealand, but do not otherwise differ. Curiously enough, 

 no specimens exist in any of the collections formed by the members of the recent 

 expedition. 



Hymenophyllum. flabellatum, Lab. 



Hymenojphyllum -flabellatum. Lab., PL Nov. Holl., ii, 101, t. 250 (1806) ; 

 Hook, f., Fl. Antarct., i, 105 (1844). 



Auckland Islands : Not uncommon on trunks of trees and rocks, both near the 

 sea and on the hills ; Hooker, Tennant ! (Throughout New Zealand ; extra-tropical 

 Australia ; Tasmania ; Polynesian islands.) 



Mr. Tennant's specimens, which are all I have seen, belong to a curious form 

 intermediate between H. flabellatum and H. rufescens, in which the stipes, rhachis, 

 and costae are furnished with long flexuose hairs exactly as in H. rufescens, but 

 in which the fronds are not nearly so delicate nor the stipes so long and slender 

 as in typical rufescens. It could almost be referred to either species, but, on the 

 whole, it seems best to keep it with H. flabellatum. 



Hymenophyllum minimum, A. Rich. 



Hymencphyllum minimum, A. Rich., Fl. Nov. Zel., 91, t. 14, f. H (1832) ; 

 Hook. 1, Fl. Antarct., i, 103 (1844). 



Auckland Islands : On trunks of trees in the woods, rare ; Hooker. (New 

 Zealand, coastal districts from Tasman's Bay southwards ; rare and local.) 



This was not collected during the recent expedition. As I have remarked in 

 the Manual, it is a much misunderstood species, many collectors confusing it with 

 small states of H. Tunbridgense, from which it differs in the smaller size, in the uni- 

 formly terminal and solitary sori, and in the indusium being spinose on the faces as 

 well as on the margins. Hooker's description and remarks, given in the " Flora 

 Antarctica/' amply prove that he was dealing with the typical plant. 



