Laurencia . ] 
IX. ALGjE. 
677 
East coast, Colenso ; Houraki Gulf, Banks’s Peninsula, and Otago, Lyall. (S. Africa, 
California.) 
44. CHONDBIA, Agardh. 
Frond dull red or purplish, filiform, cartilaginous, dichotomously or verti- 
cillately branched, opaque ; axis articulated, of many parallel tubes, coated 
with small polygonal irregularly placed cells ; branchlets clavate, constricted 
at the insertions. Conceptacles ovoid, containing pyriform stalked spores. 
Tetraspores 3-parted, scattered on the ramuli. 
A genus of several species, scattered through the temperate and tropical oceans. 
1. C. macrocarpa, Harv. in FI. N. Z. ii. 223. Frond 4-6 in. long, 
as thick as a sparrow’s quill, cvlindric, alternately or pinnately decompound ; 
branches distichous, close or distant, alternate or secund, closely set with 
alternate pinnae or curved and distantly compound ; branchlets elongate, 
^-1 in. long, very obtuse, slightly constricted at the base. Conceptacles large, 
ovoid at the ends or sessile on the sides of the branchlets. 
Foveanx Straits, Lyall ; Otago, Lindsay. 
2. C. flagellaris, Harv. in FI. N. Z. ii. 224. Fronds dull purple, 
cartilaginous, setaceous, densely tufted, branched vaguely from the base or 
alternately decompound ; branches elongate, simple, with few lateral, rather 
spreading branches ; branchlets scattered, unequal, filiform, acute, not con- 
stricted at the base. Conceptacles large, ovoid, sessile, with a prominent 
orifice. 
Port Nicholson and Paterson’s Harbour, Lyall. 
45. CLADHYMENIA, Harvey. 
Frond rose-pink, membranous, flat, thin, with or without a midrib, dis- 
tichouslv pinnatifid ; structure of 2 strata, internal cells large, polygonal, full 
of granules, outer minute, coloured. Conceptacles ovoid, enclosing a tuft 
of pyriform spores. Tetraspores 3-partite, in definite marginal sori. 
Genus confined to New Zealand and Australia. 
1. C. Lyallii, Hook. f. and Harv. FI. N. Z. ii. 235. Frond rose-red, 
4-5 in. high, broadly deltoid in outline, filiform at the base, soon dilating to 
-Jg— i in., then flattened, traversed by an obscure nerve, attenuated to the 
apex, between gelatinous and membranous, 2-3- pinnatifid ; branches spread- 
ing, linear-lanceolate ; lowest 2-pinnatifid ; middle pinnatifid ; upper entire 
or toothed ; branchlets linear, filiform, obtuse. Conceptacles stalked, elliptic- 
oblong. — Harv. Ner. Austr. 87. t. 33. 
Bay of Islands, Lyall. 
2. C. oblongifolia, Harv. in FI. N. Z. ii. 235. t. 113. Frond red, 
brown when dry, 1 foot long and more, nearly 1 in. broad, flat, gelatinously 
membranous, pinnate or 2-pinnate ; pinnae 6-8 in. long, tapering downwards, 
obtuse, simple or bearing similar pinnules ; margins more or less fringed with 
filiform or compressed, simple or branched processes. Conceptacles sessile 
