76 ASPLEMUM. 



Cunningham. S. Australia, Victoria, Robertson, and Doodenong ranges, F. Mueller 

 Subtropical New Holland, Col. Mitchell, n. 330. Brisbane River, A. Cunningham, 

 New Zealand, N. Island, Colenso, A. Cunningham, J. D. Hooker ; and llouraki 

 Gulf, Lyall ; all tbese from N. Zealand border too closely upon D. media, tlie fronds 

 are more rigid, scarcely dimorphous, the pinnules l)roader and more spinuloso- 

 serrate. — This species has fronds which are the most thin and delicate and flaccid 

 of any of the genus; but the fertile fronds, besides having much longer and nar- 

 rower pinnjc than the sterile, are more harsh and rigid, and the teeth or serratures 

 more spinulose. Nevertheless there are specimens which almost unite the pre- 

 sent with D. media, 15r. In this however it is only the apex that is pinnatitid, 

 the rest of the frond is pinnate with numerous pinnse, the lowest ones the most 

 apart. 



SuBORD. VI.— ASPLENIE.E. 



Sori dorsal, generally distant from the margin, scattered, 

 linear or oblong, oblique with regard to the costa, rarely sub- 

 parallel with it. Lwolucres arising from the side of a vein 

 or veinlet, sometimes from the superior or inferior side, 

 sometimes two thus situated on the same vein (then di- 

 plazioid), opening towards the costa, plane or vaulted (very 

 convex), generally membranaceous. — Tufted Ferns, or fur- 

 nished with a more or less elongated caudex or rhizome ; 

 uboundiny in warm and tropical regions, though by no means 

 confined to them. Fronds extremely various in form and 

 texture. Veins simple or forked, or pinnated, free or variously 

 united, and anastomosing. 



This is a tribe or suborder including very numerous species, and, according to 

 the views of some authors, a considerable amount of genera. Such as entertain 

 this latter opinion, in the main, trust to the ditferent nature of the venation : and 

 with us the majority of such genera are incorporated in one great genus. 



1. ASPLENIUM, L. 



(Hook. Gen. Fil. t. XXX. (Euasplen.). Tab. CXIII. B. 

 (Thamnopteris, Pr. Neottopteris, /. Sm.) Tab. VI. (Cienop- 

 teris. Berg. Darea, Juss.) Tab. XVI. (Athyrium, Pr. Al- 

 lantodia, in part., Br.) Tab. CXIII. A. (Ceterach, IVilld.) 

 Tab. LV. A. (Hemidictyum, Pr.) Tab. LV. B. and LVI. B. 

 (Diplazium, Pr. Diplazii sp. Stv. et alior.) Tab. LVI. A. 

 (Anisogonium, Pr.) Tab. LVI. C. (Digrammaria, Pr.) Tab. 

 CXVI. (Oxygonium, Pr.) Callipteris, /. Sm. Acropteris, 

 Link. Tarachia, Pr. Brachysorus, Pr. Ilypochlamys, Fee. 

 Lotzea, A7. Orthogramme, Fee. Pseudathyrium, Newm. 

 Pteriglyphis, Fee. Tectaria, Cav. Microstegia, Pr.) 



So7-i involucrate, linear or oblong, scattered, more or less ob- 



