Algce^\ FLORA OE NEW ZEALAND. 235 



Gen. XLV. CLADHYMENIA, Harv. 

 (Harv. Lond. J. Bot. iv. 539. Ner. Austr. p. 87. excl. sp. J. Ag. Sp. Alg. ii. 771. Kiitz. Sp. Alg. p. 879.) 



1. Cladhymenia Lyallii, Harv./ Lond. J. Bot. v. 4.^3. 540. Ner. Austr. p. 87. t. 33. L. Ag. Sp. Alg. 

 v. Z.p. 771. Kiitz. Sp. Alg. p. 879. 



Hab. Bay of Islands, Lyall. 



2. Cladhymenia oblongifolia, Harv. ; radice fibroso-ramosa, fronde stipitata latiuscula gelatinoso-mem- 

 branacea sub-bipinnatifida, laciniis erecto-patentibus oblongo-linearibus basi attenuatis subpetiolatis apice 

 obtusissimis margine fimbriatis, ceramidiis ovatis ad cilia marginalia ramosa filiformia sessilibus, tetrasporis 

 in ciliis marginalibns applanatis nidulantibus. — Harv. Lond. J. Bot. v. 4. p. 540. Ner. Austr. p. 87. /. 

 Ag. Sp. Alg. v. 2. p. 771. Kiitz. Sp. Alg. p. 879. (Tab. CXIII.) 



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



Frond a foot or more in length, nearly an inch in breadth, pinnately or bipinnately parted ; lacinice erecto- 

 patent, 6-8 inches long, f an inch wide, tapering to the base, very obtuse, simple, or bearing, especially in the upper 

 half, a second series of similar lacinias ; the margin of all more or less fringed with filiform or compressed, simple or 

 branched processes. Conceptacles ovate, on the sides of the marginal ciliary processes. Tetraspores in shorter, 

 simpler, and flattened processes. Colour "red," when dry brownish. Substance gelatinoso-membranaceous, very 

 closely adhering to paper in drying ; soon decomposing in fresh water, and giving out a large quantity of gelatine, 

 which stains the paper on which the specimen is displayed. 



Dr. Lyall's newly-received specimens of this plant are of large size, and with perfect fructification of both kinds. 

 In external habit, the larger ones are very similar to Callophyllis Mombroniana, for which, without a careful exami- 

 nation, some of them may be overlooked.— Plate CXIII. Eg. 1, plant, natural size ; 2, marginal processes, bearing 

 conceptacles ; 3, vertical section of a conceptacle ; 4, spores from the same ; 5, marginal processes, bearing tetra- 

 6, a tetraspore : — all more or less magnified. 



Gen. XL VI. PTILONIA, Harv.— J. Ag. 



(Harv. Ner. Austr. p. 124. J. Ag. Sp. Alg. ii. 773.) 



1. Ptilonia Magellanica, Harv. J. Ag. Sp. Alg. v. 2. p. 774. Thamnophora Magellanica, Mont. Pole 

 Sud,p. 162. t. 8./. 2. Plocamium Magellanicum, Hook.fil. et Harv. Fl. Ant. v. 2. p. 474. 

 Hab. East Coast, lat. 43°, Lyall. (Native of Cape Horn and Kerguelen's Land.) 



We have only seen a single specimen from the above locality. This plant abounds at Cape Horn, the Falk- 

 lands, and Kerguelen's Land. 



Gen. XL VII. CHAMPIA, Ag.—Harv. ref. 



(Harv. Ner. Bor. Amer. pt. 2. p. 75. Champia et Lomentarim sp., Auct. Ghylocladia sp., Grev. Ner. Austr. etc.) 



1. Champia Novce-Zelandice, Harv. ; fronde stipitata compressa apice subattenuata opposite vel verti- 

 cillatim composita, ramis simplicibus vel iterum ramosis, ramulis ssepius oppositis, articulis diametro duplo 

 brevioribus, apicibus obtusis. 



Var. 13; ramis ramulisque apice attenuatis, ceramidiis ovato-conicis sessilibus. — Chylocladia? Novae- 

 Zelandise, Hook.fil. et Harv. Lond. J. Bot. v. 4<.p. 541. Ner. Austr. p. 80. Lomentaria Novas-Zelandise, 

 Kiitz. Sp. Alg. p. 863. 



Hab. Bay of Islands and Eoveaux Straits, Lyall. Tauranga, Bavies. Maketu, Chapman. Var. /S. 

 Port William, Southern Island, Lyall. 



Broader than C. Tasmanica, to which it is nearly allied. 



