216 



FLORA OF NEW ZEALAND. 



\_Algee. 



strata corticali infra superficiem exeavata, sphserica, cum ostiolo superficial! per canalem communicantia. 

 Spora intra perisporium hyalinum lineari-obovatum parietale nidulantes. Paranemata simplicia— Alga 

 parasitica, pusilla, organis nullis discretis, quasi receptaculis Cystoseirse vet Sargassi habitu referens. 



1. Notheia anomala, Bail, et Harv. (Tab. CIX. A.) 



Hab. Parasitical on Hormosim, New Zealand, Wilkes. Port Cooper, Banks' Peninsula, la/all. Pari- 

 mahu, Colenso. 



Frond 2-3 inches high, twice as thick as hog's-bristle, filiform, slightly tapering to the base and apex, curved, 

 undivided, set with lateral branches, which arise from all sides ; each branch springing proliferously from one of the 

 scaphidia of an older branch or portion of the primary frond. In this way the frond at length becomes decompound 

 and bushy, the series of branches being successively smaller, the youngest fusiform and mostly arched. Scaphidia 

 scattered abundantly through all parts of the frond, sunk in the cortical layer, spherical, opening by rather large 

 superficial pores. Spores in very narrow, almost linear, parietal perispores. Colour a clear olive. Substance sub- 



coriaceous. 



A curious little plant, allied to Splachnidium and Hormosira, but differing from both in habit and parasitic at- 

 tachment. It much resembles a very branching tuft of receptacles of some Sargassum or Cystoseira, if we can con- 

 ceive those to be developed without a frond. We have received it from several correspondents ; and it would seem 

 to be of frequent occurrence, though not noticed previous to the American Exploring Expedition under Wilkes.— 

 Plate CIX. A. Fig. 1, plant, parasitic upon Hormosira Sieberi, nat. size; 2, branches of the parasite; 3, section of 

 a branch ; 4, section of a scapMdium, immersed in the branch, with spores and paranemata -.—more or less 



Gen. XIII. D'URVILL^A, Bory. 



(Bory, Diet. Class, ix. 192. Voy. Coqu. p. 65. J. Ag. Sp. Alg. i. 187. Kiitz. Sp. Alg. p. 585.) 

 1. D'Urvfllnea utilis, Bory, Coqu. p. 65. t. I, et t. 2./. 1. A. Rich PL N. Zd.fi. 8. Post, et Bupr. 



Ittustr. 1. 1. Hook.fil. et Ran. PI. Ant. v. l.p. 176. v. 2.jp. 454. Pond. J. Bot. v. 4,. p. 528. J. Ag. Sp. 



Alg. v. 1. p. 188. Kiitz. Sp. Alg. p. 585. 



Hab. New Zealand, U Urvitte, Hooker, etc. (Native of Antarctic regions, and extra-tropical South 



America.) 



Tribe II. SPOROCHNACEjE. 



Gen. XIY. SPOROCHNUS, Ag. 

 (Kiitz. Phyc. Gen. p. 342. J. Ag. Sp. Alg. i. 173. Kiitz. Sp. Alg. p. 568.) 



1. Sporochnus stylosus ; caule filiformi indiviso lateraliter ramoso, ramis sparsis fasciculatisve simplici- 

 bus elongatis, receptaculis sessilibus v. brevissime pedicellatis elliptico-oblongis demum cylindraceis mucrone 

 stylomorpho elongato capitato coronatis. (Tab. CIX. B.) 



Hab. Otago Harbour and Foveaux Straits, Lyatt. 



This has the aspect of 8. pedunculatus, but is readily distinguished by the receptacles, which are subsessile, 

 cylindrical, and crowned by a long, filiform, style-like mucro, from half to two-thirds the length of the full-grown 

 receptacle.— Plate CIX. B. Fig. 1, plant, natural size; 2, 3, portions of a branch, with receptacles in various stages 

 of growth ; 4, sporiferous filaments from the same -.—more or less magnified. 



Gen. XV. CAEPOMITRA, Kiitz. 

 (Kiitz. Phyc. Gen. p. 343. J. Ag. Sp. Alg. i. 177. Kiitz. Sp. Alg. p. 569.) 

 1. Carpomitra Halyseris, Hook. fil. et Harv. in Bond. J. Bot. v. 4,.p. 528. /. Ag. Sp. Alg. v. 1. p. 179. 

 Kiitz. Sp. Alg. p. 570. 



