674 
IX. ALG.E. 
\Folyzonia. 
with long, simple (rarely branched), alternate branches, everywhere covered 
with distichous, alternate leaflets (branchlets) ; leaflets vertical, trapezoid, 
truncate, irregularly cut and toothed, sometimes 2-fid ; lower margin entire. 
Conceptaele sessile on the basal lobe of a deeply cut leaflet- Stichidia supra- 
axillary, crested with processes, at first simple, then pinnately branched.— 
Harv. Ner. Austr. 70. 
Roots and fronds of large Alga, Otago, Stewart’s Island, and Port Preservation, Lyall. 
Lord Auckland’s group and Campbell’s Island : abundant, •/. D. H. 
2. P. adiantiformis, Decaisne ; — FI. N. Z. ii. 226. Minute, vaguely 
branched ; branches spreading ; leaflets as in F. cuneifolia , but smaller and 
with much smaller cells. 
Parasitic on Marginalia. Described by Dr. Harvey from very immature scraps. 
3. P. ovalifolia, Hook. f. and Harv. FI. N. Z. 226. t. 112 B. Habit 
of P. cuneifolia ; leaflets horizontal, sessile, obliquely oblong, very obtuse, 
quite entire or toothed. 
Parasitic on Amphiroa corymbosa, Colenso. Specimens immature. 
4. P. bipartita, Hook.f. and Harv. FI. N. Z. ii. 227. 1 . 112 A. Minute ; 
leaflets distichous, alternate, 2-partite; segments flattened, linear, mucronate 
or obtuse ; upper erect, of 3 rows of rectangular cells ; lower shorter, hori- 
zontal. Stichidia large, axillary, linear-oblong, apiculate, with one row of 
few large tetraspores. 
On Carpophyllum maschalocarpus, Colenso . — Very similar in general appearance to 
Folysiphonia ceratoclada. 
5. P. Harveyana, Decaisne ; — FI. N. Z. ii. 227. Stems in. high, 
slender or robust, compressed, closely set with alternate distichous, pectinate, 
horizontal and recurved leaflets. Stichidia supra-axillary, simple or 2-3-lobed ; 
lobes crested. — F. Colensoi and F.Harveyi, Harv. Ner. Austr. 71 and 72. 
Common, parasitical on various Algos , J. D. H., etc. 
42. CHAMPIA, Hesvaux. 
Frond dull reddish, terete or compressed, branched, tubular, constricted 
at intervals, internally septate at the constrictions, the septa connected by 
longitudinal jointed filaments ; walls of one or many rows of minute coloured 
polygonal cells. Conceptacles ovate-ovoid, with a terminal pore, containing 
a tuft of branched filaments ; the branches terminated by ovoid or obconic 
spores. Tetraspores 3-partite, scattered in the walls of the stem and branches. 
1. G. novas-Saelandise, Harv. FI. N. Z. ii. 235. Frond 3 in. long, 
stipitate. Stem T \- in. broad, compressed, subattenuate at the apex ; branches 
opposite or whorled, simple or divided ; branchlets often opposite ; articula- 
tions twice as broad as long, obtuse. Conceptacles conical, ovoid, sessile. 
Tetraspores scattered through the branches. — Chylocladia, Harv. Ner. Aust. 
SO. Lomentaria , J. Ag. Sp. Alg. ii. 739. 
Common along the whole coast, Lyall, etc. 
