250 



FLOBA OF NEW ZEALAND. 



\_Alg<e, 



Gen. LXXIV. GYMNOGONGEUS, Mart. 

 (Mart. Bras. p. 27. J. Ag. Sp. Alg. ii. p. 313. Tylocarpus, Oncotylus, et Ohondri sp,, Kiitz.) 



1. Gymnogongrus furcellatus, J. Ag., Sp. Alg. v. 2. p. 318. Sphserococcus furcellatus, Ag. Syst. 

 p. 217. Kiitz. Sp. Alg. p. 737. Gracilaria furcata et G. torulosa, Hook. fil. et Han. in Bond. J. Bot. v. 4. 

 p. 545, etv. 7. p. 444. 



Hab. Not uncommon, Colenso, Lyatt. (West coast of South America.) 



A very variable plant, of which, we have now received several varieties. Our former specimens were imperfect, 

 and led us into error. 



2. Gymnogongrus vermicularis, J. Ag., Sp. Alg. v. 2. p. 323. Chondrus vermicularis, Grev. Kiitz. 

 Sp. Alg. p. 739. Pucus vermicularis, Turn. Hist. t. 221. 



Hab. Milford Haven, Lyall. (Cape of Good Hope, and western South America.) 

 Some specimens of Mr. Colenso's, from Hawke's Bay, belong to this genus, but are too imperfect to be satis- 

 factorily described. 



Gen. LXXV. CALLOPHYLLIS, Kiitz. 

 (Kiitz. Phyc. Gen. p. 400. Sp. Alg. p. 744. J. Ag. Sp. Alg. ii. 296. Rhodymenim sp., Auet.) 



1. Callophyllis variegata, Kiitz., Sp. Alg. p. 745. /. Ag. Sp. Alg. v. 2. p. 302. Ehodymenia variegata, 

 Mont. Pole Sud, p. 156. Hook. fil. et Harv. Fl. Ant. v. 2. p. 475. Sphserococcus variegatus, Bory, Cog. 

 t. 14. 



Hab. Tauranga, Bavies. (Antarctic shores, and extratropical South America.) 



2. Callophyllis erosa, Hook. fil. et Harv. ; fronde sublineari pinnato-dichotoma decomposita nunc cre- 

 berrime nunc distanter ramosa, laciniis erecto-patentibus plus minus compositis elongatis lobulis margina- 

 libus eroso-dentatis lacinulatisve ornatis, axillis omnibus rotundatis apicibusque acutis, cystocarpiis spliDericis 

 ad marginem sessilibus. (Tab. CXVIII.) 



Hab. Poveaux Straits, and Port Cooper, Lyall. 



Yariable in habit, sometimes very densely, sometimes distantly branched, 6-12 inches long, the principal lacinia? 

 from i to a an inch wide, erecto-patent or very erect, between pinnate and dichotomous, or alternately decompound. 

 Frond often margined with small, eroso-dentate lobules. Conceptacles sessile on the edge of the frond, projecting 

 beyond the margin. Colour a fine purple-crimson. — It adheres to paper in drying. — Plate CXVIII. Fig. 1, plant, 

 natural size ; 2, portion of a lacinia with marginal conceptacles ; 3, section of the frond ; 4, tetraspores : — more or less 



3. Callophyllis asperata, Harv. ; fronde tenui-membranacea subsessili flabelliformi dichotomo-palmata 

 subfastigiata, laciniis sursum latioribus apiceque crenato-multifidis margine simplici vel crispo et fimbriato, 

 lamina processibus ciliiformibus pluribus asperata, cystocarpiis sphserico-convexis disco frondis immersis. 



Hab. Port Nicholson, Cook's Straits, Lyall. 



Frond 4-5 inches long, sessile, flabelliform and fastigiate, repeatedly dichotomous or subpalmately decompound ; 

 the segments J-l inch wide, broader upwards, crenato-multifid at the expanded and fastigiate apex. The margin 

 is either flat or much curled, sometimes ciliiferous : the lamina is very generally asperated with minute, scattered, 

 subulate processes. Conceptacles scattered over the disc. Colour a rosy crimson. Substance delicately membrana- 

 ceous, closely adhering to paper in drying. 



4. Callophyllis coecinea, Harv. in Lond. J. Bot. v. Q.p. 405. Kiitz. Sp. Alg. p. 746. /. Ag. Sp. Alg- 

 v. Z.p. 301. 



Hab. Tauranga, Bavies. (Tasmania.) 



