222 



This has the habit, externally, of Elachista 

 celaria. — Plate CX. 0. Fig. 1, plant, parasitical on Ca 

 3, a sphacelated apex and pedicellate spore from the same : 



FLORA OF NEW ZEALAND. {Alga. 



but the structure of the rigid filaments is that of Spka- 

 size ; 2, the parasite ; 



-more or less magnified. 



Gen. XXX. ECTOOABPUS, Lyngb. 



Also Corticidaria, Spongonema, and 



(Lyngb. Hyd. Dan. p. 130. J. Ag. Sp. Alg. i. 14. Kiitz. Sp. Alg.p. 449. 



Tilopteris, Kiitz. 1. c. p. 460-462.) 



1. Ectocarpus siliculosus, Lyngb. J. Ag. Sp. Alg. v. l.p. 22. Kiitz. Sp. Alg.p. 4.51. Harv. Phyc. 

 Brit. t. 162. Ilook.fil et Harv. in Lond. J. Bot. v. 4.jo. 531. 



Hab. Bay of Islands, J. D. H. Port Cooper and Port William, Lyall. Tauranga, Bavies. Maketu, 

 Chapman. Cape Kidnapper, Colenso. (Native of north and south temperate zone.) 



2. Ectocarpus granulosus, Ag. J. Ag. Sp. Alg. v. I. p. 21. Harv. Phyc. Brit. t. 200. E. ochraceus, 

 Kiitz. Sp. Alg. p. 453. 



Hab. East Coast, Colenso. (Native of shores of Europe and North America.) 



3. Ectocarpus confervoides, Harv. ; caespite 2-4-unciali, fills elongatis rigidiusculis distanter ramosis, 

 ramis parum divisis, ramulis paucis simplicibus sparsis erectis v. erecto-patentibus, axillis acutis, propagulis 

 elongatis cylindraceis vel filiformibus ssepius ramellos terminantibus nunc in ramis iminersis. 



Hab. Otago and Blind Bay, Cook's Straits, Lyall. 



Tufts 2-4 inches long, rather coarse, dense, not closely adhering to paper, greenish-olive when dry. Filaments 

 distantly and sparingly branched : the ramuli few, simple, very erect, or somewhat patent. Axils all very acute. 

 Propagula elongate, generally terminating the branchlets, sometimes imbedded in the middle of the branches. 



This is nearly related to K siliculosus, but has the aspect and ramification of E. crinitus. 



4. Ectocarpus pusillus, Griff. ? ; csespite unciali, filis tenuibus flaccidis simpliciusculis hie illic ramulos 

 horizontales breves emittentibus, articulis diametro subbrevioribus, propagulis . . . ? {An E. pusillus, Griff, 

 in Harv. Phyc. Brit. t. 153 ?) 



Hab. Parasitic on Corallines, Hawke's Bay, Colenso. (Native of England.) 



Very similar in appearance to British specimens of E. pusillus ; but, until the fructification be discovered, we are 

 uncertain of the propriety of the above reference. 



Series II. EHODOSPEEME^E. 



Tkibe I. BHODOMELACEM 



Gen. XXXI. LENOBMANDIA, Sand. 



(Sond. in PL Preiss. ii. 183. Harv. Ner. Austr. p. 18. t. 2. Kiitz. Sp. Alg. p. 849. (non Mont.) 



1. Lenormandia Chauvinii, Harv.; phyllodiis brevissime pedicellatis crassiusculis rigidislato-lineari- 

 bus oblongisve obtusissimis iutegerrimis nervo tenui evanescente percursis, e nervo proliferis, stichidiis mar- 

 ginalibus v. e nervo enatis simplicibus ramosisve. 



Var. /3. angustifolia; phyllodiis linearibus angustis. 



Hab. Otago, Lyall. East Coast, Colenso. (Native of New Holland.) 



Variable in size. In the larger specimens the phyllodia are three inches long and half an inch wide ; in the 

 smaller, li-2 inches long and 1-2 lines wide. The substance is thickish, rigid when dry, and semi-opaque. The 



