Gen. XXIII, Species .‘{.—Gen. XXVIII, Species 1. 
3. P. Grammitidis. Fronds an inch to a span long, tufted, 
thick in texture; perfectly smooth, with the exception of scales at the 
base of the stipes; deeply pinnatifid ; pinnules somewhat distant, 
linear, entire or lobed, often irregularly so ; sori generally oblong ; 
short stipes winged nearly to the base. Dwarf states have small, 
linear, lobed, fronds. Throughout the Islands, generally on 
trunks of trees. 
Gen. XXIV. — Phymatodes. 
1. P. Billardieri. The two species of this genus may be at 
once distinguished merely by the rhizome. In the present species 
it is thick, fleshy, and green, dotted with short brown scales; creep- 
ing over trunks of trees, <fec., to which it clings by fibrous roots. 
Fronds varying in shape and size, simple or pinnatifid, 3 inches to 1 
foot long, bright green, shining ; rachis and costa stout. Abundant 
throughout the Islands. 
2. P. postulata. Rhizome creeping over trees, &c., some- 
what slender, tough, densely clothed with brown, scale-like, hairs ; 
fronds varying in form, generally narrower than in the last species, 
more membranous ; stipes generally winged. 
As far South as Akaroa. 
Gen. XXV. — Dictymia. 
1. D. lanceolata. Fronds perfectly smooth, simple, narrowed 
at each end, tufted ; roots brown, or black, woolly ; sori large, 
globose, in one series on each side of the costa. Throughout the 
Northern Island. 
Gen. XXVI. — Arthropteris. 
1. A. tenella. A climbing, pinnate fern ; rhizome very long, 
slender, rigid, scaly ; fronds scattered, pendulous ; pinnae stalked, 
narrowed to a point, margins waved. Throughout the Northern 
Island ; climbing lofty trees. 
Gen. XXVII. — Niphobolus. 
1. N. rupestrib. Rhizome creeping, slender, scaly ; fronds 
to 8 inches long, simple, leathery in texture; almost oval in a barren 
state; but when fertile much longer and narrower. Abundant on rocks 
and trees throughout the Islands. 
Gen. XXVIII.— Grammitis. 
1. G. australis. Fronds densely crowded, simple, long, narrow ; 
the oblique, oblong sori at once distinguish this fern. Throughout 
the Islands. 
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