348 
PACIFIC SCIENCE, Vol. XV, July 1961 
Nostocales 
Lyngbya confervoides C. Ag. Fleetwood 
Bluff, supralittoral fringe; mid-littoral 
pool, Meyer I.; on Pterocladia, Lava Pt. 
Lyngbya semiplena (C. Ag.) J. Ag. Fishing 
Rock, sheltered supralittoral pool, also 
Hutchinson’s Bluff: on Pterocladia, Lava 
Pt. 
Phormidium cor mm ( Ag. ) Gom. On Pter- 
ocladia, Lava Pt. 
Phormidium autumnale (Ag.) Gom. Local- 
ity unknown. 
Hydrocoleum glutinosum (Ag.) Gom. 
Fleetwood Bluff, sheltered crevice (mid- 
littoral ) , also supralittoral fringe. 
Hapalosiphon laminosus Hansgirg. On fu- 
marole orifice. 
Tolypothrix tenuis Kiitz. Supralittoral 
fringe pool, Lava Pt. 
S cytonema hofmani Ag. On rotten log, 
Green Lake. 
Amphithrix violacea (Kiitz.) Born, et Flah. 
Fleetwood Bluff, supralittoral fringe. 
Plectonema nostocorum Bornet. Supralit- 
toral fringe pool, Lava Pt. 
Calothrix Crustacea Thur. Fishing Rock, 
sheltered supralittoral pool, also on wet 
concrete. 
CHLOROPHYCEAE 
Ulotrichales 
G Ulva lactuca var. rigida (Ag.) Le Jol. 
G * Ulva laetevirens Aresch. 
t Enter omorp ha kylinii Bliding. The 
record of this species gives the alga a 
great discontinuity. In view of the 
relatively recent recognition of this 
species, however, it is likely that a 
wider distribution will be found for 
it than at present recorded. Supralit- 
toral fringe, Hutchinson’s Bluff, on 
rocks always wet with spray. 
G # Enteromorpha comprCssa Grev. 
Enter omorpha prolifera (Muel.) J. Ag. 
f. crinata (Roth.) comb. nov. Young 
plants which probably belong to this 
species. Supralittoral fringe, Meyer I. 
Chaetophorales 
Trentepohlia jolithus Wallr. 
Oedogoniales 
Oedogonium sp. ) Neither fertile, 
Bulbochaete sp. \ Green Lake. 
Siphonocladales 
Lola tortuosa (Dillw. ) Chapm. Fishing 
Rock, sheltered supralittoral pool. 
Rhizoclonium hookeri Kiitz. Fleetwood 
Bluff, on Pohutakawa log. 
Rhizoclonium hier o glyphicum Kiitz. 
emend Stockm. Waterfall near Hut- 
chinson’s Bluff; Blue Lake. 
G C Cladophora prolifera ( Roth ) Kiitz. This 
is recorded as C. fusca Marten by both 
the Gepps and Cotton. For a discus- 
sion on this matter the reader is re- 
ferred to Chapman (1956). Deep 
mid-littoral pool, Lava Pt.; sublittoral, 
Meyer I. to 8 m. 
Cladophora fracta (Dillw.) Kiitz. var. 
lacustris (Kiitz.) Brand ex Heering. 
Waterfall near Hutchinson’s Bluff. 
Clad op h or op sis herpestica (Mont.) 
Chapm. Boat Cove, Fishing Rock, 
t Cladophoropsis membranacea Borg, 
t Cladophoropsis membranacea Borg. var. 
repens (J. Ag.) Phinney. I believe 
two plants have been confused here. 
There is a cushion-like Cladophora, C. 
repens, and there another plant which 
is clearly a Cladophoropsis in that the 
branches have no cells at the base. Su- 
pralittoral pool, Meyer I. 
Microdictyon umbilicatum (Velley) Za- 
nard. Only occurs elsewhere in New 
Zealand on Mayor I. (Chapman, 
1956). 
Dasycladales 
f Acetabularia parvula S o 1 m s-L a u b a c h. 
Mid-littoral pool, Fishing Rocks. 
Siphonales 
Derbesia novae-zelandiae Chapm. This 
was probably the plant that the Gepps 
recorded as V aucheria sp. Pool in sub- 
littoral fringe, pool mid-littoral, Fish- 
ing Rocks; sublittoral, 4-8 m., Meyer 
I. 
