686 ix. ALGiE. [Nitophallum. 
J. Ag. Sp. Alg. ii. 667- Dawsonia, Bory, Yoy. Coquil. t. T9, f. i. Aglaopliyl- 
lum, Mont, in Yoy. Bonite, 111. 
Ruapuke Island in Foveaux Straits, Lyall. (Chili.) 
56. PHACELOCARPUS, Endlicher. 
Frond red, slender ; midrib strong, compressed, distichously pectinate or 
subterete, 4-fariously aculeate ; structure of three strata, surrounding an ar- 
ticulate tube ; medullary of longitudinal densely interlaced filaments ; inter- 
mediate of larger roundish cells ; cortical of minute coloured cells in vertical 
lines. Conceptacles external, pedicelled or sessile, imperfectly known. Re- 
ceptacles ovoid or globose, containing numerous cavities in which are zoned 
tetraspores mixed with unicellular peranemata. 
A genus of one species of uncertain affinity. 
1. P. Labillardieri, J. Agardh, Sp. Alg.ii. 648; — FI. N. Z. ii. 242. 
Root a broad disk. Frond dark-red, 1-3 ft. high, i 11 - diameter, ex- 
cessively branched ; branches irregular, the smaller closely pinnate or 2-pin- 
nate, all of them pectinate with subulate branchlets. Receptacles ovoid, 
axillary, pedicelled, ovoid. — Harv. Phyc. Austr. iii. t. 163. Euctenodus and 
Ctenodus , Kuetzing. Sphcerococcus, Agardh. 
Laminarian zone and deeper water, abundant along all the shores, Sinclair, Colenso, etc. 
(Australia, Tasmania.) 
57. CALLIBLEPHARIS, Kuetzing. 
Frond dull-red, flat, between cartilaginous and membranous, dichotomously 
pinnate and fimbriate ; structure of two strata; medullary of several series of 
large roundish angular cells ; cortical of minute coloured cellules. Coucep- 
tacles sessile, thick-walled, enclosing a tuft of moniliform spore- threads. 
Tetraspores zoned, scattered amongst the cortical cells. 
A fine genus, native of both temperate zones. 
1. C. ? tenuifolia, Harv. in FI. N. Z. ii. 243. Frond 6-8 in. long, 
1 in. broad, bright rose-red, delicately membranous, dichotomously pinnate ; 
margins proliferous ; segments much attenuated at the base, often subciliate 
and toothed. Tetraspores scattered, transversely divided. 
Chalky Bay, Lyall. — Dr. Harvey remarks that in the absence of conceptacles the genus of 
this plant is doubtful ; it may be a Rhodopkyllis. 
58. SARCODIA, J. Agardh. 
■ Frond rose-red, fleshy, cartilaginous when dry, flat, repeatedly dichoto- 
mously -branched and bearing marginal segments; structure of 3 strata; 
medullary of loosely interlaced filiform cells ; intermediate of rounded angular 
cells, gradually passing into the other stratum of minute vertical rounded 
cells. Conceptacles hemispheric, thick-walled, on the disk and margins of 
the frond, opening by a pore, enclosing obovate spores arranged on dicho- 
