226 



PLORA OP NEW ZEALAND. 



\Al(/(B. 



natis saspe furcatis apicibusque involutis, pinnis alternis simpliciter pinnellatis, pinnellis 3-4 lineari-nlifor- 

 mibus gracilibus obtusis, stichidiis elongatis in medio vel apice pinnellarum evolutis. — Mont, in M. Chil. 



Hab. On rocks covered by the sea at high, water, Paterson's Harbour, Lyall. (A native of Chili.) 



Fronds 2-3 inches high, as thick as a hog's bristle, three to four times irregularly forked, and set throughout 

 with lateral, distichous, simply pinnate, patent brancldets, two or three lines long, each bearing from three to five 

 ultimate pinnellas; ends of the branches curled in. SticMdia linear-oblong, acute, sometimes formed from the 

 middle portion, sometimes from the end of the ramuli. Odour a blackish-purple. — This appears the same as the B. 

 Harveyi, Mont., from Chiloe. At the same time it must be allowed to border very closely on the European B. scor- 

 pioides, with which I formerly united it ; it is, however, more slender than the ordinary state of that species, and the 

 stichidia may possibly afford a valid specific character. 



3. Bostrychia distans, Harv.; fronde tereti debili bi-triunciali subsetacea vage ramosa v. pinnato-dicho- 

 toma, ramis alterne divisis apicibusque involutis pinnatis, pinnis distantibus alternis simplicibus vel pinnel- 

 latis, pinnellis 2-3 lineari-filiformibus obtusis. 



Hab. In fresh-water streams near Wellington, and on Banks' Peninsula, Lyall. Eiver Kowhaia, 



Perhaps only a straggling variety of B. Harveyi, but with more simple and distant ramuli, and less curled 

 apices. 



4. Bostrychia Arbuscula, Harv. ; fronde unciali robusta (semilineam diametro) compressa, caule basi 

 ramulis fractis exasperato sursum creberrime ramoso, ramis brevibus bipinnatis, pinnis approximatis, pin- 

 nulis subulatis acutis vel mucronatis erectis, axillis omnibus acutissimis apicibusque strictis, cellulis super- 

 ficialibus minutissimis vix seriatis. 



Hab. Otago, Lyall. 



Frond 1 inch high, very robust for its length, twice or thrice as thick as a hog's bristle, densely tufted, erect. 

 Stems naked below, or set with the remains of broken ramuli, densely clothed with short branches beyond the 

 middle. Branches erect, closely bipinnate ; the pinnae subulate, mucronulate, and very erect. Colour a dull 

 brownish-purple. Structure dense, the surface-cells very minute, dot-like, and irregularly set. Stem solid, with 

 eight primary, and several rows of secondary cells. Fruit unknown. All parts somewhat compressed. 



Gen. XXXIX. POLYZONIA, SuM. 

 (Suhr, in Flora, 1834, p. 739. t. 2. f. 15. Mont. Pole Sud, p. 134. PL Ant. i. 181. Harv. Ner. Austr. p. 70. 



Kiitz. Sp. Alg. p. 881.) 



1. Polyzonia cuneifolia, Mont. Pole Sud, Lot. p. 143. Hooh.fil. et Harv. in Fl. Ant. v. 1. p. 181. 

 t. 76. Harv. Ner. Austr. p. 70. Kiitz. Sp. Alg. p. 882. 



Tar. /3. bifida ; foliis ssepissinie profunde bifidis vel bipartitis, stichidiis ample cristatis. 



Hab. Var. a, on the roots of large Alga, east coast of Southern Island ; and var. /3, at Port Preserva- 

 tion, west coast, Middle Island, Lyall. (Native of Auckland Islands.) 



Our var. /3 is a remarkable state of the species, less branched than usual, and, to the naked eye, more densely 

 clothed with leaves. The leaves are very generally cleft nearly to the base into two subequal lobes, but not invari- 

 ably so. 



2. Polyzonia adiantiformis, Dene., Nouv. An. Sc. Nat. Ser. 2. v. 17 . p. 363. Harv. Ner. Austr. p. 71. 

 Kiitz. Sp. Alg. p. 881. 



Hab. Parasitical on Marginaria, Herb. Paris. 



3. Polyzonia ovalifolia, Hook. fil. et Harv. ; surculo repente, foliis alternis horizon talib us sessilibus 

 insequilaterali-ovalibus obtusissimis integerrimis dentatisve. (Tab. CXII. B.) 



