696 
IX. ALGiE. 
[Plocamium. 
and pinnules alternately geminate, ultimate very narrow ; brandies subulate, 
quite entire, acute. Stichidia axillary, subsolitary, lanceolate, simple or forked, 
sometimes formed of the ultimate pinnules. — Harv. Ner. Austr. 123. t. 42 ; 
J. Ag. Sp. Alg. ii. 401. 
Bay of Islands, Cunningham , etc. ; Maketa, Chapman. 
7. P. dispermum, Harv. in FI. N. Z. ii. 246. Frond 6-12 in. high, 
in. broad, stipitate, costate, decompoundly pectinate-pinnate, subflabellate ; 
pinnae alternately geminate, lower and laciniae of the upper narrow, subulate, 
acute, quite entire. Conceptacles supra-axillary, sessile, scattered. Stichidia 
extremely minute, axillary, decompoundly branched or lobed ; lobes ovoid or 
oblong, stalked, each with about 2 large tetraspores filling the lobe. 
East coast, Colenso ; Foveaux and Cook’s Straits, hya.ll. 
§ 2. Euplocamiuh. — Frond cartilaginous , piano-compressed ; branches alternately in 
threes or fours ; conceptacles and stichidia scattered, lateral on the branches. 
8. P. coccineum, Lyngbye ; — FI. N. Z. ii. 246. Fronds tufted, 2-12 
in. long, compressed, 2-edged, in. diameter, excessively divided, divisions 
set throughout with patent alternate branches, and these again with distichous 
subulate branchlets, pectinate on the inner margin. Conceptacles solitary, 
sessile on the margins of the upper branches. Stichidia solitary, sessile, 
branched. — Harv. Ner. Austr. 123 ; Phyc. Brit. t. 44 ; J. Ag. Sp. Alg. ii. 
395. 
Abundant and very variable from the Bay of Islands to Lord Auckland’s group and 
Campbell’s Island. (Atlantic, Pacific, and Antarctic Oceans.) 
74. STENO GRAMME, Harvey. 
Frond rose-red, membranous, flat, nerveless, dichotomously laciniate ; struc- 
ture of two strata ; medullary of several rows of roundish angular cells ; cor- 
tical of minute coloured cells. Conceptacles confluent into linear rib-like 
masses, containing minute spores within a thick integument. Tetraspores in 
superficial convex masses, formed in strings, cuneate. 
A beautiful Alga, most abundant in New Zealand. 
1. S. interrupta, Montague ; — FI. N. Z. ii. 249. Root a small disk. 
Frond 6-12 in. long and broad, flabellate ; stem short, at once dilating into 
the frond; laciniae i— | in. broad, with obtuse tips and axils. — Harv. Ner. 
Bor. Am. t. 19 C ; Phyc. Brit. t. 157 ; Phyc. Austr. iv. t. 220 ; J. Ag. Sp. 
Alg. ii. 391. 
Common along all the coasts, Colenso, etc. (Atlantic and Pacific Oceans.) 
75. GYMNOGONSRUS, Martius. 
Frond dull red-brown or purplish, horny, coriaceous or rather fleshy, flat 
or filiform, dichotomously branched ; structure of two strata ; medullary of 
lai’ge colourless angular cells ; cortical of moniliform minute coloured cells 
vertically disposed and set in gelatine. Conceptacles more or less prominent. 
