B.] 



FLORA OF NEW ZEALAND. 



253 



Gen. LXXIX. HALYMENIA, Ag. ref. 

 (J. Ag. Alg. Medit. p. 95 ; Sp. Alg. ii. 197. Harv. Ner. Bor. Amer. pt. 2. p. 192.) 

 1. Halymenia Novas-Zelandice, Mont., Voy. Pole Sud,p. 11. Kiitz. Sp. Alg. p. 716. J. Ag. Sp. Alg. 

 v. 2. p. 207. H. Urvilleana, Mont. I. e. t. 12./ 2. 

 Hab. Akaroa, If Urville. 

 Unknown to us, unless our Nemasioma Daviesii be a synonym. 



Gen. LXXX. CHEYSYMENIA, J. Ag. 



(J. Ag. Alg. Medit. p. 105 j Sp. Alg. ii. 209. Harv. Ner. Bor. Amer. pt. 2. p. 187.) 

 1. Chrysymenia ? polydaetyla, Hook. fil. et Harv.; caule filiformi solido subdichotome decomposite 

 ramosissimo ramulis lineari-fusiformibus basi et apice subacutis simplicibus tubulosis pinnatim obsito? 

 fructu . . . ? (Tab. CXIX. A.) 



Hab. South Harbour, Southern Island, Lyall. 



Stem 3-4 inches long, twice as thick as hog's-bristle at the base, attenuated upwards, solid, much branched, 

 between dichotomous and alternate, the larger branches angularly flexuous, the lesser straight, virgate, alternate or 

 secund. Branches densely set with alternate, secund, or somewhat fasciculate, finger-like, hollow ramuli, subacute at 

 the base and apex. Substance firmly membranaceous, scarcely adhering to paper in drying. Colour a dull, dark 

 purplish-red. No fruit seen.— Apparently related to C. uvaria ; but until the fruit be discovered, the genus must 

 be doubtful. — Plate CXIX. A. Fig. 1, plant, natural size ; 2, apex of a branch and hollow ramuli ; 3, cross section 

 of a branch ; 4, cross section of a ramulus ; 5, tetraspores :— all more or less magnified. 



Gen. LXXXI. CHYLOCLADIA, J. Ag. 



(J. Ag. Sp. Alg. ii. 360. Harv. Ner. Bor. Amer. pt. 2. p. 185.) 



1. Chylocladia umbellata, Hook. fil. et Harv.; fronde tereti subtrichotoma, ramis primariis apice 

 hamatis infra apicem latere convexo ramos ssepius ternos quaternosye emittentibus, ramis minoribus basi 

 constrictis clavatis curvatis apice ramulis ter-quaternis vesicuMormibus coronatis. (Tab. CXIX. C.) 



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



Fronds 1-2 inches long, about | a line in diameter, terete, triehotomous, all the primary branches curved and 

 hooked at the summit, and emitting, below the apex on the convex side, three or four erect, linear-clavate, slightly 

 curved, lesser branches. These either throw out a second set from their apex, or are crowned with three or four 

 small, ovate or oblong, obtuse ramuli, which no doubt lengthen into clavate branches. Colour a dull purple.— 

 Allied to C. artiadata, but very distinct.— Plate CXIX. C. Fig. 1, plant, natural size ; 2, umbellate ramuli ; 3, cross 

 section of a ramulus ; 4, structure of the frond : — more or less magnified. 



2. Chylocladia secunda, Hook. fil. et Harv. Chrysymenia secunda, Hook. fil. et Harv. in Lond. J. Sot. 

 v. 4>. p. 548. 



Hab. Akaroa, Raoul. Port Cooper, Banks' Peninsula, Lyall. 



Can this be Bumontia pusilla, Mont. Pole Sud, p. 105. t. 13. f. 2 ? 



3. Chylocladia? ccespitosa, Harv.; casspitosa, parvula, caule curvato arcuato (radicante ?) ramos erectos 

 opposite pinnatos v. verticillatim ramosos emittente, ramulis fusiformibus oppositis vel quaternis basi parum 

 constrictis apice attenuatis acutis majoribus curvatis. 



Hab. Port Nicholson, Lyall. 



A doubtful species, requiring further examination. We have seen but one immature specimen. It may pos- 

 sibly be only a variety of C. clavellosa, though the occasionally quatemate ramuli are unlike that species. 



VOL. II. 3 T 



