12 



FLOBA OE NEW ZEALAND. 



\Filices, 



Africa, and very many other parts of the globe. It differs from H. Tunbridgense, /3 cupressi forme, only in the entire 

 lips of the involucre, otherwise these plants appear identical. I find the amount of toothing in the valves of II. Tun- 

 bridgense to vary extremely, sometimes amounting- to a mere erosion, and at others the lips being even laciniated 

 and spinulose ; so that I can hardly doubt these two proving eventually the same species. The ordinary short, 

 broad, oblong, flat, bright-green fronded state of II. Tunbridgense, with broad, short pinnse and segments, and 

 involucres more sunk in the segments, is a different-looking form from its deep green, sparingly branched var. /3, 

 and from unilaterale, and nothing can be more different than the habit of such states of Tunbridgense, and of _ff. 

 unilaterale, as cultivated together in a Ward's case ; but in nature these characters vary and elude our grasp, and 

 this in whatever parts of the world they both inhabit. 



3. Hymenophyllum minimum, A. Rich. ; pusillum, csespitosum, fronde glaberrima late ovata falcato- 

 recurva pinnatiflda basi pinnata, pirmis integris bi-tripartitisve linearibus obtusis ciliato-dentatis concavis 

 rigidis, involucris terminalibus exsertis stipitatis obovato-cuneatis, valvis dorso spinuloso-dentatis, ore bre- 

 viter bilobo argute dentato. — A. Rich. Flor.p. 93. t. 14. A. Cunn. Proclr. Flor. Infarct, p. 103. 



Hab. Throughout the Islands ; on the roots of trees, etc., scarce, D' JJrville, Lyall, etc. 



A very small plant, closely allied to II. Tunbridgense and //. multifidum, differing from the former in the spi- 

 nulose back of the valves of the involucre, and from the latter in this latter character and their serrate lips. This 

 species extends as far south as Lord Auckland's Group. 



4. Hymenophyllum multifidum, Sw. ; fronde glaberrima erecta v. decurva late ovata bi-tripinnatifida, 

 segmentis anguste linearibus ssepius decurvis rigidis spinuloso-dentatis, involucris supra-axillaribus liberis 

 obovato-oblongis urceolatisve obtusis turgidis fere ad medium bifidis, valvis integerrimis serratisve, recep- 

 taculo valido exserto, rachi basi vix alata, stipite tereti. — Swartz, Syn. Fil. Hook. Sp. Fil. v. 1. p. 98. 

 Mhulir, Fil. t. 135 b. Hoot el Grev. Ic. Fil. t. 167. Trichomanes, Forst. T. macilentum, Banks et 

 Sol. MSS. 



Hab. Abundant throughout the Islands, Banks and Solander, etc. 



Fronds 2-8 inches long, rigid, broadly ovate, twice or thrice pinnated. Segments spreading or curved down- 

 wards, narrow, deeply toothed. Involucres axillary, erect or decurved, nearly free, urceolate or obovate, two-lipped 

 to the middle. Lips entire or serrate. Receptacle exserted. Rachis hardly winged below. Stipes and rhizome 

 wiry, rounded. — This Tern is found as far south as Campbell's Island. 



5. Hymenophyllum bivalve, Sw. ; fronde glaberrima erecta v. decurva ovata tripinnatifida, segmentis 

 linearibus dentatis, involucris terminalibus late ovatis ad medium bifidis, valvis integerrimis, receptaculo 

 incluso, rachi inferne vix alata, stipite tereti. — Sw. Syn. Fil. Schkuhr, Fil. L 135. Hook. Sp. Fil. v. 1. 

 p. 98. t. 35 D. A. Rich. Flora. H. spathulatum, Col. in Tasm. Journ. of Science. Trichomanes, Forst. 

 Prodr. T. pacificum, Hedw. Fil. 



Hab. Northern Island ; east coast and interior, 17 JJrville, Colenso. Middle and Southern Islands, 

 Forster, Lyall. 



A scarce Fern unknown in the warmer parts of New Zealand ; it closely resembles II. multifidum in size, habit, 

 and general appearance, but is not so rigid, has less sharply toothed segments, and shorter terminal involucres, whose 

 base is sunk in the frond, and the lips are quite entire. 



\ B. Fronds guile glabrous, or with the casta and rachis only setose; margins neither toothed nor ciliated. 

 a, Fronds pinnatifid, rarely pinnate below ; rachis, and generally the stipes, winged. 



6. Hymenophyllum rarum, Br. ; fronde pendula tencra oblongo-ovata v. lineari-elongata glaberrima 

 bipiunatifida v. basi pinnata, segmentis brevibus planis latis integerrimis, involucris late ovatis rhombeisve 

 terminalibus fronde immersis compressis, valvis latis brevibus integerrimis, stipite rachique capillari. — Br. 



