264 



FLORA OF NEW ZEALAND. 



\_Alg<&. 



So far as a badly dried specimen allows us to decide, this does not differ from the English plant. 



2. Tyndaridea? byssoidea, Harv.; filis arachnoideis nigricantibus gelatinosis, articulis diametro sub- 

 triplo longioribus. 



Hab. In a fresh-water lake, Kapiti, Cook's Straits, Lyall. 



We do not like to omit all notice of this species, and yet feel that the character given is quite insufficient to 

 distinguish it. Our specimens are not in conjugation. The endochrome has contracted into a mass, with faint in- 

 dications of bination, either in the centre or end of the articulation. Under the microscope it has a greenish tinge. 

 To the naked eye the colour is smoky. 



TkibeIV. ULFACBJE. 



Gen. CII. POEPHYBA, Ag. 

 (Ag. Syst. xxxii. Endl. 3rd Suppl. p. 19. Harv. Phye. Brit. t. 92. p. 211. Kiitz. Sp. Alg. p. 691, excl. sp.) 



1. Porphyra laciniata, Ag., Syst. p. 190. Ag. la. Alg. Bur. I. 26, 27. Harv. Phyc. Brii. I. 92. 

 Kiitz. Sp. Alg. j>. 692. 



Hab. Cook's Straits and Banks' Peninsula, Lyall. (Generally diffused.) 



2. Porphyra vulgaris, Ag., Aufz.p. 18. Grev. Alg. Brit. p. 169. Harv. Phyc. Brit. t. 211. Kiitz, 

 Sp. Alg. p. 692. Porphyra linearis, Grev. Alg. p. 170. t. 18 (the young plant.) 



Hab. Cape Kidnapper, etc., Colenso. (Generally diffused.) 



Gen. CIII. BANGIA, 



(Lyngb. Hyd. Dan. p. 82. Ag. Syst. p. 25. Grev. Alg. Brit. p. 177. Harv. Phyc. Brit. t. 96, etc. Kiitz. 



Sp. Alg. p. 358.) 



1. Bangia ciliaris, Carm., MSS. Hook. Br. Fl. v. 2. p. 316. Harv. Phyc. Brit. t. 322. 

 Hab. On leaves of Zostera, Cook's Straits, Lyall. (Native of Europe.) 



This forms a dense fringe to the margin of the leaves. The fronds in our specimens are nearly f an inch long, 

 and very variable in breadth. Some have one or two rows of cells, as is common in the British plant ; others have 

 the middle part of the frond flattened into a leafy expansion, with many rows of irregularly-shaped cells ; and others 

 have pretty wide, uniformly flattened fronds. 



2. Bangia lanuginosa, Harv. ; filis (parasiticus) minutis curvatis cylindraceis, cellulis purpureis unise- 

 riatis diametro subduplo brevioribus. 



Hab. Parasitical on Chordaria sordida, Colenso. 



This covers the Chordaria with a dense, purple coat, about a line or two in length. Filaments curled, cylin- 

 drical, containing a single row of bright purple, lenticular cells, considerably shorter than their diameter. Substance 

 soft and gelatinous. — Allied to B. ceramicola, but smaller, with much shorter and more densely-set cells. Except 

 in colour, it does not differ from lynghya (Ilormotridia). 



Gen. CIV. ENTEROMOEPHA, Linh. 

 (Link, in Hor. Phys. p. 5. Harv. Phyc. Brit. Solenia, Ag. Syst. xxxii. Kiitz. Sp. Alg. p. 478.) 



1. Enteromorpha compressa, Grev., Alg. Brit. p. 180. t. 18. Harv. Phyc. Brit. t. 335. Kiitz. Sp. 

 Alg. p. 480. Solenia compressa, Alg. Syst. p. 186. 



Hab. Sea-shores, abundant. Very variable in form and size. (Generally diffused.) 



2. Enteromorpha intestinalis, Link, Hor. Phys. Ber.p. 5. Grev. Alg. Brit. p. 179. E. Bot. Suppl. 

 t. 2756. Harv. Phyc. Brit. t. 154. 



