~. I 



Algce.~] 



FLORA OF NEW ZEALAND. 



241 



Hab. East Coast, Lyall, Colenso, apparently common. Vars. /3 and y, in the same locality, Lyall. 

 Vars. 8 and e. Eoveaux Straits and Port Cooper, Lyall. 



Frond 6-8 inches long, or more. Stipes broadly euneate, 1-2 inches long, thickened in the middle, but not 

 ribbed. Lamina vertically cleft into numerous lineari-cuneate, very erect segments, with very narrow axils. Smaller 

 lacinise linear-oblong, obtuse, fiat, and even. Substance thickish. Colour when dry a dull brownish-red. Concep- 

 tacles abundantly scattered through the upper segments. Sori oblong, often elongate, generally disposed in longi- 

 tudinal, interrupted lines, closely covering the surface of the lamina for an inch or two below the summit, and con- 

 tinued in the lower part within the margin, sometimes scattered. Such is our var. a, the common form, which bears 

 a strong resemblance in aspect to RJiodymenia palmata. Var. y is of much thinner substance and brighter colour, 

 and may perhaps prove to be a distinct species. Vars. S and c have the lobes pinnatifid and the axils obtuse, and 

 it is not without hesitation that we refer them to this species. 



3. Mtophyllum variolomm, Harv. ; stipite cuneato basi incrassato mox in laminam aveniam dicho- 

 tome vel palmatim partitam abeunte, laciniis decomposite multifidis superioribus angustioribus ssepius pro- 

 cessibus ciliiformibus marginatis aspergatisque, axillis patentibus apicibusque obtusis, soris sparsis sub- 

 heinisphserico-convexis tetrasporas paucas triangule divisas foventibus. 



Hab. Port Cooper, Banks' Peninsula, Lyall. East Coast, Colenso. 



Frond 2-3 inches high, slightly stipitate, irregularly multifid. Upper lacinise very narrow, and repeatedly 

 dichotomous. Sometimes multifid lacinulae issue from the sides, as well as the ends, of the upper segments, and 

 then the frond becomes very intricately divided. In such specimens especially the upper lobes are sprinkled over 

 and margined with ciliiform, gland-like, or root-like processes. Sori thickened into pimple-like tubercles, very con- 

 vex, containing few tetraspores. — Seemingly a distinct species; readily known when in fruit. 



4. Mtophyllum denticulatum, Harv. ; stipite cuneato costa mox evanescente aut supra productiore 

 ramosa percurso in lamina ssepius avenia flabelliformi plus minus dichotoma abeunte, lamina nunc subindi- 

 visa vel pararn lobata nunc profunde partita, margine seepissime eroso-denticulata crispata, apicibus obtusis, 

 coccidiis sparsis, soris ovatis oblongisve numerosissimis per totam frondem sparsis. 



Var. j3 ; fronde subsessili ovata vel suborbiculari, margine pinnatifido eroso-denticulato. 



Var. 7; fronde dichotoma denticulata crispata. 



Var. 8 ? ; fronde dichotoma, margine integerrimo undato-crispato. 



Hab. Blind Bay, Cook's Straits, and East Coast, Lyall. Maketu, Chapman. Tauranga, Lames. 



This resembles N. Bonnemaisom in habit, but is almost always denticulate at the margin. 



5. Nitophyllum multinerve, Hook. fil. et Harv., Fl. Ant. v. 2. p. 473. Harv. Ner. Austr. p. 119. 

 J. Ay. Sp. Aly.p. 666. Cryptopleura multinervis, Kiitz. Sp. Alg. p. 870. 



Hab. Massacre Bay, Cook's Straits, Chalky Bay, Middle Island, and east side of Southern Island, 

 Lyall. (Native of Falkland Islands.) 



6. Nitophyllum minus, Sond. ; dense csespitosa, pnsilla, fronde sessili e basi dichotomo-pinnata, seg- 

 mentis linearibus angustis divaricato-patentibus obtusis multifidis, axillis omnibus latis, soris termiualibus 

 solitariis oblongis vel orbicularis. — Cryptopleura minor, Sond. in Freiss. PI. v. 2. p. 194. Harv. Ner. Austr. 

 p. 119. J. Ay. Sp. Aly. v. 2. p. 655. 



Hab. Parasitical on various Algae. East Coast, Colenso. Tauranga, Lavies. (Native of New 

 Holland.) 



Mr. Colenso's specimens are very similar to one communicated by M. Sonder. Mr. Davies's are twice as 

 broad, but in other respects the same. 



7. Nitophyllum uncinatum, J. Ag., Sp. Aly. v. 2. p. 654? 



VOL. II. 3 Q 



