51.

Rubiaceae Coprosma rhamnoides (r) Near t r i g .

Campanulaceae. Wahlenbergia g r a c i l i s (r) In grass.

Compositae. O l e a r i a f u r f u r a c e a (r) Near t r i g . •Cirsium lanceolatum (o) In grass. Helminthia echioides ( f ) " " Crepis c a p i l l a r i s (f) " " 'Hypochaeris r a d i c a t a (f) " " *H. glabra (o) • E r e c h t i t e s scaberula (o) " " •Eri g e r o n canadensis (f) "

Nothopanax arboreum i s recorded i n the B o t a n i c a l Society account of the t r i p but i t i s believed that t h i s i s i n e r r o r . One or two plants of Pseudopanax l e s s o n i i growing i n Pohutukawa of the Eastern slopes were very large-leaved and a specimen from one of them was accepted as N. arboreum u n t i l c a r e f u l l y i n v e s t i g a t e d .

(r) = r a r e ; (1) = l o c a l ; (a) = abundant; (f) = frequent; (o) = occasional

PRELIMINARY SPECIES LIST OP MARINE ALGAE PROM THE WEST COAST -Auckland - Jane Trevarthen.

The area included extends from the southern rock platforms at Muriwai, southwards to the Ninepins at Whatipu. Although extensive c o l l e c t i n g has been c a r r i e d out at Anawhata, B e t h e l l ' s , Whatipu and Karekare the l i s t s are by no means complete, as much of the m a t e r i a l ( e s p e c i a l l y i n the Rhodophyceae) has not yet been i d e n t i f i e d . Only very sparse c o l l e c t i n g has been done at Piha and Muriwai. F u l l e c o l o g i c a l notes have been taken during c o l l e c t i n g , however, only b r i e f notes are given i n t h i s a r t i c l e as space i s l i m i t e d , also the dates of c o l l e c t i o n of f e r t i l e m a t e r i a l aro included only f o r the more uncommon species. Species included from the records of Prof. Chapman or Vivienne Dellow are i n d i c a t e d by i n i t i a l s , V.J.C. or U.V.D. r e s p e c t i v e l y . * N.B. The t i d a l l i m i t s given are only approximations. CYANOPHYCEAE. Entophysalidaceae.

Placoma v e s i c u l o s a . H.W.S.' Piha. (Seasonal). V.J.C. R i v u l a r i a c e a e .

D i c h o t h r i x gypsophila. At outflow of f r e s h water on way to the Gap. Piha, A p r i l 194 6. V.J.C.

R i v u l a r i a a t r a . Near outflow of fr e s h water. Piha, A p r i l 1 9 4 6 O s c i l l a t o r i a c e a e .

Symploca mura l i s . Muriwai, May 1946. V.J.C. S c h i z o t h r i x l a c u s t r i s . Piha - at outflow of f r e s h water, mixed with

D i c h o t h r i x . A p r i l 1946. V.J.C. CHLOROPHYCEAE.

U l o t r i c a l e s . Ulvaceae.

Ulva l a c t u c a var. r i g i d a . Common, both i n pools and i n s u b l i t t o r a l e s p e c i a l l y at Anawhata and Piha.

L e t t e r s t e d t i a p e t i o l a t a . Common i n upper m i d - t i d a l pools a l l along the coast.

Enteromorpha i n t e s t i n a l i s f . b r e v i s . Not uncommon where f r e s h water seepage. Anawhata.

Enteromorpha acanthophora. Occurs here and there along coast i n higher m i d - t i d a l pools

E. bulbosa. High t i d a l c r e v i c e . Piha 1946. V.J.C.

52.

Siphonocladales. Cladophoraceae .

Chaetomorpha aerea. High t i d a l pools a l l along the coast. C. l o n g i a r t i c u l a t a . High t i d a l pools. Anawhata, January 1950. Cladophoropsis h a r p e s t i c a , i n lower t i d a l pools and channels.

Anawhata, January 1953. Siphonales,

Bryopsideae. Bryopsis plumosa. Common i n occurence i n m i d - t i d a l pools a l l

along the coast.

Sparse and l o c a l . Small specimens found at Whatipu. Not uncommon i n i n t e r t i d a l pools, S. Muriwai.

On Du::T:.1] ea, d r i f t Anawhata, January 1950.

Codiaceae. Codium adherens. Codium f r a g i l e . Chaetophorales.

Chaetophoraceae. Sporocladopsis n.z.

PHAEOPHYCEAE, Ectocarpales.

Ectocarpaceae. P y l a i e l l a novae zelandiae. Common i n high t i d a l pools i n rock

platforms a l l along the coast. Tilopterida3.es.

TitoPteridaceae7 Actinospora p u s i l l a . D i c t y o t a l e s .

Dictyotaceae. Zonaria s u b a r t i c u l a t a . Stunted plants found i n pools at Anawhata and

B e t h e l l ' s . Glossophora k u n t h i i . In lower t i d a l pools and at L.W.N, on rock

platforms. Distributed s p o r a d i c a l l y along the coast.

Chordariales. Myrionemataceae.

R a l f s i a verrucosa. Common encrusting lower t i d a l boulders and on mussel s h e l l s . Occurs a l l along the coast.

Haplospongidion saxigenum ( ? ) . On mussel s h e l l s at Anawhata. Chordariaceae.

p a p e n f u s s i e l l a l u t e a . Very sparse at L.W.N, l e v e l on rocks, North Karekare, January 1952.

Splachnidiaceae. Splachnidium rugosum. Stunted plants found here and there along

the coast. Seasonal. P u n c t a r i a l e s .

Encoeliaceae. I l e a f a s c i a . Fairly frequent i n occurence along the coast

i n s heltered m i d - t i d a l pools. Scytosiphon lomentaria. At L.W.N, on sheltered, gently s l o p i n g rock

platform. North Karekare, January 1952. Also found at Piha, October 1946.

Colpomenia sinuosa. Piha, 1946. U.V.P.

Scytothanmnus a u s t r a l i s . On f a i r l y f l a t , mussel-covered rock platform at about m i d - t i d a l l e v e l at North Anawhata, B e t h e l l ? s and Piha.

Fucales. Cystoseiraceae. """Carpophyllum maschalocarpum. Found i n lower t i d a l pools and at L.W.S

Whatipu. C. flexuosum. Found i n d r i f t at Whatipu. Landsburgia q u e r c i f o l i a . Specimen found at Whatipu, A p r i l 1950 with

abundant conceptacles.

5 3 .

Hormosiraceae. Hormosira b a n k s i i .

Notheia anomala Durvi l l e a c e a e .

D u r v i l l e a a n t a r c t i c a .

In the more sheltered s i t u a t i o n s along the coast, e.g. i n pools at N. Anawhata and at B e t h e l l ' s . Abundant, but l o c a l . Found on Hormosira b a n k s i i at Nth, Anawhata where i t i s f a i r l y p l e n t i f u l . Abundant on lower i n t e r t i d a l rocks where exposed, throughout the area.

RHODOPHYCEAE. Bangiales.

Bangiaceae. Porphyra u m b i l i c a l i s .

P. subtumens.

Upper l i t t o r a l pools, Whatipu, February 1950. (Only c o l l e c t e d at the one l o c a l i t y ) . On D u r v i l l e a a n t a r c t i c a . D i s t r i b u t i o n as f o r D u r v i l l e a . Common i n d r i f t on most beaches.

P. columbina var. novae zelandiae. Occurring at high t i d a l l e v e l s where moderately s h e l t e r e d . C o l l e c t e d t e t r a s p o r i c i n Jan. at Anawhata and B e t h e l l ' s .

E r y t h r o c l a d i a i r r e g u l a r i s . Endophytic i n •""Sertularia bispinosa (hydroid) and found wherever S. bispinosa occurs i n abundance.

Bangia fuscopurpurea. Common i n a l l the West Coast streams. Nemalionales.

Acrochaetiaceae. "sp Acrochaetium On Carpophyllum maschalocarpum. D r i f t , Whatipu

August 1950 (only c o l l e c t e d at the one l o c a l i t y ) Helminthocladiaceae.

Helminthocladia a u s t r a l i s . Sporadic at L.W.N, and f r i n g i n g f a i r l y steeply s l o p i n g rock platform. North Karekare, January 1952.

Chaetangiaceae. Chaotangium~corneum. G e l i d i a l e s .

Gelidiaceae. Caulacanthus s p i n e l l u s . Gelidium caulacantheum.

G. pusillum.

G. longipes.

P t e r o c l a d i a l u c i d a .

Cryptonemiales. Grateioupiace"ae.

Aeodes n i t i d i s s i m a

Piha, October 1946. U.V.D.

Muriwai, t e t r a s p o r i c , June 1950, also Piha 1946, Stunted, exposed forms and pool form, both at N. Anawhata. F a i r l y common but l o c a l i n d i s t r i b u t i o n . Also at Piha. Common but l o c a l , at high t i d a l l e v e l s a l l along coast. B e t h e l l ' s . F r i n g i n g upper i n t e r t i d a l pools, February 1950. L o c a l but not uncommon. D i s t r i b u t e d f a i r l y g e n e r a l l y along the coast at low water and i n s u b l i t t o r a l .

(?) (The l a r g e , l e a t h e r y sheet alga so common on boulders at L.W.N, at Anawhata i s temporarily placed as Aeodes n i t i d i s s i m a ) .

Grateloupia i n t e s t i n a l i s . F r i n g i n g lower l i t t o r a l boulders N. Karekare January 1950 and 1952.

G. p r o l i f e r a . Lower l i t t o r a l . Uncommon, i s o l a t e d specimens found at Karekare, Anawhata and B e t h e l l ' s .

Pachymenia himantophora. D i s t r i b u t e d f a i r l y g e n e r a l l y along the coast at lower m i d - t i d a l l e v e l s , f r i n g i n g rock platforms. (Cystocarpic plants c o l l e c t e d at N. Anawhata i n January).

Apophloea s i n c l a i r i i . At high neap l e v e l , Piha 1946-47. U.V.D. Corall i n a c e a e .

C o r a l l i n a o f f i c i n a l i s . Basal p o r t i o n coating lower l i t t o r a l and s u b l i t t o r a l rocks throughout. Erect p o r t i o n found frequently along coast i n m i d - t i d a l pools

5 4 .

C o r a l l i n a hombroniana,

J a n i a sp. Lithothamnion

Melobesia sp.

Gi g a r t i n a l e s , Nemastomaceae.

sp,

Nemastoma o l i g a r t h r a .

Plocamiaceae. Plocamium angustrum.

G r a c i l a r i a c e a e . G r a c i l a r i a paradoxa

Melanthalia abcissa.

Tylotus p r o l i f e r u s .

Curdiaea e n g e l h a r t i i

Mychodeaceae. A h n f e l t i a sp.

(An extremely v a r i a b l e species and d i f f i c u l t to i d e n t i f y ) . Occurring i n pools here and there along the coast. M i d - l i t t o r a l pools, B e t h e l l ' s . Encrusting pools and lower t i d a l l i m i t s on rock platforms and rocks a l l along the coast. Encrusting rocks at lower l e v e l s and i n pools or e p i p h y t i c on various algae, e.g. Lenormandia c h a u v i n i i .

Pound on rocks at Ninepins, Whatipu, Aug. 1950 Very sparse i n occurence.

In pools at Muriwai. Cystocarpic i n June. Also i n pools at Karekare.

(?) Abundantly cystocarpic at Anawhata i n May and January. Occurs i n mid and upper l i t t o r a l pools In lower l i t t o r a l pools or s u b - l i t t o r a l . D i s t r i b u t e d f a i r l y g e n e r a l l y along the coast. In i n t e r t i d a l pools and channels at B e t h e l l ' s , Karekare and Anawhata.

(?) Cystocarpic plants found at N. Anawhata i n January. At L.W.N, i n sand.

Not common i n at B e t h e l l ' s ,

lower l i t t o r a l pools and channels Karekare South and Anawhata.

Phyllophoraceae. Gymnogongrus h u m i l i s .

G. nodiferus.

G. v e r m i c u l a r i s .

At L.W.,N, on boulders - growing i n close proximity to sand. B e t h e l l ' s , January 1950. Not uncommon i n i n t e r t i d a l channels at Anawhata and B e t h e l l ' s . Several plants found i n i n t e r t i d a l channels at Anawhata.

Gigartinaceae. G i g a r t i n a atropurpurea. Widely d i s t r i b u t e d along the coast towards

low water. Tetrasporic and carposporic g e n e r a l l y throughout the year. Also widely d i s t r i b u t e d at low water and i n i n t e r t i d a l channels. M i d - t i d a l pools at Whatipu. Lower i n t e r t i d a l reaches of rock platforms. B e t h e l l ' s , Anawhata, Karekare and Piha. Often abundant i n a wide i n t e r t i d a l zone where moderately sheltered. Not common and occuring at lower l i t t o r a l l e v e l s .

G. cranwellae.

G. G.

chapmanii (?) macrocarpa.

G. alveata.

G. decipiens. Rhodymeniales.

Champiaceae. Champia novae zelandiae var. dolichopoda. In m i d - t i d a l pools

N. Anawhata, B e t h e l l ' s and Piha. Sporadic i n d i s t r i b u t i o n and seasonal. Pound t e t r a s p o r i c i n January at Anawhata.

Rhodymeniaceae, Rhodymenia l e p t o p h y l l a . I n t e r t i d a l pools, Whatipu and Anawhata.

Pound cystocarpic at Whatipu i n August. Lophurella caespitosa.. Here and there along the coast i n m i d - l i t t o r a l

p o s i t i o n on rock platforms. Ceramiales.

Ceramiaceae. sp. Ceramium

E u p t i l o t a sp. (?) Pleonosporium hirtum.

I n t e r t i d a l pools throughout. B e t h e l l ' s , February 1950. Tet r a s p o r i c , Anawhata, January. i n i n t e r t i d a l pools.

Not uncommon

5 5 .

Callithamnion sp. In rock pools between Karekare and Whatipu. Centroceros clavulatum. Abundant at low water i n the sand or i n

m i d - t i d a l pools, Anawhata and Piha. Spermothamnion sp. (?) M i d - t i d a l pool, Anawhata, January 1951. Monospora g r i f f i t h s i o i d e s . Piha. M i c r o c l a d i a novae zelandiae. Generally i n pools but not common.

Pound at Anawhata, Whatipu and ep i p h y t i c on S e r t u l a r i a bispinosa at South Karekare.

Pandoria t r a v e r s i i . In rock pools S. Karekare and Anawhata or epi p h y t i c on G i g a r t i n a cranwellae or Pt e r o c l a d i a l u c i d a .

Delessariaceae. Nitophrylleae. Myriogramme o v i f o r m i s . Pool, Whatipu, t e t r a s p o r i c August. Hymenena berggreniana. In pools at Anawhata. Tetrasporic Caloglossa l e p r i e u r i i . H.W.S. Piha. U.V.D. Erythroglossum undulatissimum. I n t e r t i d a l pools Anawhata,

Rhodomelaceae. Polysiphonieae. Polysiphonia r u d i s . P. isogna. Polysiphonia sp. Bostrychieae. B o s t r y c h i a arbuscula

Laurencieae. Laurencia v i r g a t a . L. g r a c i l i s . L. b o t r y c h i o i d e s . Herposiphonieae. Dipterosiphonia h e t e r o c l a d i a . M i d - t i d a l pool, Ninepins, Whatipu.

Te t r a s p o r i c , August.

i n January.

Jan. 1950.

L.W.N. Piha, December. U.V.D. Piha, L.W.N. U.V.D. Common i n m i d - t i d a l pools a l l along the coast.

With endophytic Dermocarpa prasina (Cyanophyceae) Whatipu and Piha,

Pools at Muriwai. Also at Piha, Pools at Anawhata. Cystocarpic January, Piha, December 1946. U.V.D.

Lophosiphonieae. Lophosiphonia sp. Polyzonieae. E u z o n i e l l a i n c i s a .

E. b i p a r t i t a . Amansieae. V i d a l i a c o l e n s o i .

Piha, H.W.S. 1946. U.V.D.

On P t e r o c l a d i a l u c i d a and Gymnogongrus nodiferus Anawhata. Also at Piha. Anawhata.

B e t h e l l ' s , towards low water on steep shaded rock faces and Whatipu i n pools and d r i f t .

Lenormandia c h a u v i n i i . I n t e r t i d a l channels, Anawhata. Cystocarpic May and January.

Chondraieae. Cladhymenia o b l o n g i f o l i a . Abundant i n channels at Anawhata, also

pools at Muriwai, B e t h e l l ' s and Piha. Apparently cystocarpic most of the year round.

i n