16 FLORA OE NEW ZEALAND. [Fihces. 



15. Hynienophylium lyalln, Hook. ffl.j pusillum, fronde pendula late oblonga v. ovato-rotundata 

 subrlabellatim v. radiatim pinnatifida marginibus pilis ramosis ciliata, piimis lineanbus dichotome divisis, 

 segmentis obtusis, involucris late obcuneatis v. obcordatis apicibus segmentorum unmersis, valvis retusis, 

 costis stipite rhizomate radicibusque tenuissime filiformibus glabernmis. 



Hab. Middle Island : Thomson's Sound, south-west coast, Lyall. 



A very distinct and remarkable little species, allied to II. rarum, Br., in habit and in the excessively slender 

 stipes and sunk involucre. It is also nearly allied to II. oitusum, Hook, et Am., of Oahu, which has more copious 

 rufous hairs on the margins, and especially cost*, and has very different involucres.-JV^ pendulous J-8 inches 

 long as broad as long, rounded or oblong, pinnatifid or more usually flabellately or digitately divided from the 

 base' into sparingly branched plume; segments blunt; margins ciliated with rufous branching hairs. Involucres 

 cuneate, triangular or obcordate, sunk in the apex of each segment; the lips generally concave. This is probably 

 not an uncommon plant, but overlooked, owing to its small size. 



Note. Hymenophyllum secundum and H. tortuosum, both natives of Fuegia, have been erroneously stated (in 

 Hook, et Grev. Ic. El.) to be natives of New Zealand (see Hook. Sp. Kl. v. 1. pp. 99, 106). 



Gen. VI. TBICHOMANES, 8m. 



Son marginales. Involucrum tubulosum, textura frondis, basi attenuaturn, apice dilatatum v. bivalve. 

 Capmlx receptaculo filiform! sajpius exserto sessiles, depress, annulo completo transversal! cuicte, longi- 

 tudinaliter raptas.— Erondes plerumque membranacea, pelkicida, cellulis magnis reticulata. 



A more tropical genus than Hymenophyllum, to which alone (except Loxsoma) it is very closely allied, and from 

 which it differs in the tubular or trumpet-shaped involucre, which is less obviously two-lipped, often quite circular 

 at the mouth, and having a generally exserted filiform receptacle. (Name, an ancient one of uncertain application.) 



1 Trichomanes reniforme, Eorst. ; fronde simplici reniformi, stipite elongato, involucris perplurimis 

 marginalibus, receptaculis exsertis.-iW. Prodr. Hook, et Grev. Ic. Fit. t. 31. A.Bick. Flor. A. Cimn. 

 Prodr. Hook. Sp. Ml. t. I. p. 115. 



Hab. Throughout the Islands, common. 



A very remarkable and beautiful Fern, found only in New Zealand, conspicuous for its broad, simple, kidney- 

 shaped h-ond.-RMzome stout, filiform, creeping. Stipes erect, 3-7 inches long, stout, terete. Frond green and 

 transparent when fresh, brown and horny when dry, 2-4 inches broad, deeply cordate at the base, and rather 

 decurrent on the stipes. Veins forked repeatedly, veinlets very rarely joining again. Involucres very numerous, 

 often crowded round the edge of the frond, tubular and urceolate, with club-shaped exserted receptacles, covered 

 with capsules. 



2 Trichomanes Jmmile, Eorst.; caespitosa, fronde lanceolata pinnatifida v. bipinnatifida glaberrima 

 marginata segmentis furcatis lineanbus obtusis, involucris fronde immersis axillaribus supra-axillanbusve 

 tubuloso-urceolatis breviter bilabiatis, receptaculo brevi v. longissimo capillar!.-^. Prodr. Hook, et 

 Grev Ic Fil t 35. Hook. Sp. Fit. v. 1. p. 123. T. Endlicherianum, Presl, Fpimel.p. 10. t. 5 A. 



Hab. Throughout the Northern Island, and as far south as Akaroa, in the Middle Island, on trunks 

 of trees, etc. Southern Island, HI. A. Richard. 



A small, pale green, tufted, translucent Eern.-I&W filiform, creeping. Stipes slender, winged above. 

 Frond very variable in shape, 1-4 inches long, linear-oblong, pinnatifid. Pinna ascending, pinnatifid or forked. 

 Segments linear, blunt, margined. Involucres sunk in short lateral segments, henec appearing axillary, shortly 

 two-lipped Receptacle sometimes included, at others exserted like a long hair.-This species is also found m the 

 Pacifi Islands Philippines, and West Indies. It is a variable plant : the New Zealand specimens are most irregularly 



