Tv

Distribution

Okha: N 22° 28.43'; E 69° 04.08' Shivrajpur: N 22° 19.87'; E 68° 56.95'

Dictyosphaeria cavernosa (Forsskal) B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Hollow, spherical, irregularly lobed or globose

Intertidal rocks, coralline stones

Lower mid littoral zone and infra littoral fringe

November-April

Moderate

Plants green in colour, rigid, gregarious, irregularly lobed, hollow, spherical or globose, coenocytic, 2 - 5 cm diameter (Figs. a, b); usually consisting of a single layer of cells formed by segregative cell division resembling large, polygonal, honeycomb-like cells, attached laterally by tenacular cells and attached to the substratum by rhyzoids produced from basal vesicles; polygonal cells 1 - 4 mm broad; tenacular cells 30 - 40 |om long and 20 - 53 |om broad.

Valonia aegagropila C. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Compact vesicular masses

Intertidal rocks, coralline stones

Lower mid littoral zone, shallow tide pools

August-April

Moderate

Plants dark green in colour, hemispherical in shape, coenocytic, at first attached, later free, eventually forming dense tufts, composed of many short irregularly branched sub-cylindrical straight or arcuate coenocytic vesicles (Figs. a, b); vesicles 1 - 3 mm broad, 5 - 10 mm long; branching from the sides or more usually from the ends of the cells.

Siphonocladales, Valoniaceae

Distribution

Okha: N 22° 28.47'; E 69° 04.37' Adri: N 20° 57.58'; E 70° 16.76'

Valonia utricularis (Roth) C. Agardh

Distribution

Okha: N 22° 28.47'; E 69° 04.37' Adri: N 20° 57.58'; E 70° 16.76'

Valonia utricularis (Roth) C. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Loose vesicle like patches

Intertidal rocks, coralline stones

Lower littoral zone, common in tide pools

August-April

Moderate

Plants dark green in colour, spreading as patches among coarser algae, up to 5 cm tall (Figs. a, b); thallus composed of short branched filaments of rather large cylindric-clavate, vesicles or coenocytic cells; vesicles 5 - 15 mm long, 2 - 5 mm diameter; branches arising from the cells cut off at the apices of the vesicles (Fig. c).

Siphonocladales, Valoniaceae

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Kotda: N 20° 42.38'; E 70° 52.17' Okha: N 22° 28.49'; E 69° 04.39' Porbandar: N 21° 38.24'; E 69° 35.81' Veraval: N 20° 54.87'; E 70° 20.83'

Valoniopsis pachynema (Martens) B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Cushions or spongy patches Intertidal rocks, coralline stones Mid littoral zone, exposed rocks September-April Moderate

Plants dark green in colour, loosely entangled, forming wide cushions of 3 cm thick (Fig. a), 5 - 7 cm diameter with interlaced ascending coenocytic filaments; filaments repeatedly and often sub-corimbosely branched, attached by septate primary and secondary rhizoids; younger branchlets erect, older branches spreading and often arcuate; branches unilateral or palmate, cylindrical, 5 - 7 mm long, 500 - 750 |om diameter, arising from a few small lenticular cells in basal and other parts of the thallus.

Bryopsidales, Bryopsidaceae

Distribution

Bryopsis hypnoides Lamouroux

Thallus form and type : Substratum Occurrence Season Abundance Description

Remiform with radially arranged pinnules Intertidal rocks, coralline stones Lower mid littoral zone November-April Moderate

Plants yellowish to pale green in colour (Fig. a), prostrate, up to 10 cm tall; erect axes naked below and profusely, radially branched at the upper parts; branches irregular, progressively smaller, without any notable difference between the lesser branches and the slender branchlets; thallus completely coenocytic without septa. Forms dense mats in shaded places of lower intertidal zone.

Bryopsidales, Bryopsidaceae tí

Bryopsis pennata Lamouroux

Distribution

Dwarka: N 22° 14.61"; E 68° 57.281 Okha: N 22° 28.401; E 69° 4.501 Porbandar: N 21° 37.921; E 69° 36.481 Rajapara: N 20° 47.461; E 71° 12.161 Shivrajpur: N 22° 19.871; E 68° 56.951 Veraval: N 20° 54.871; E 70° 20.831

Bryopsis pennata Lamouroux

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Remiform and feathery

Intertidal rocks, coralline stones

Mid and lower littoral zone, shallow tide pools

November-March

Moderate

Plants dark green in colour, sometimes iridescent, up to 14 cm high, siphonous, attached by rhizoidal holdfasts and feather like (Fig. a); erect axes naked below, sparingly branched with pinnately divided branchlets; branchlets distichous, of rather uniform length giving a linear-lanceolate or oblong aspect to the fronds (Fig. b). Forms dense mats in shaded areas below overhanging cliffs.

Bryopsidales, Bryopsidaceae

Bryopsis plumosa (Hudson) C. Agardh

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.44'; E 69° 4.50' Porbandar: N 21° 37.92'; E 69° 36.48' Rajapara: N 20° 47.46'; E 71° 12.16' Shivrajpur: N 22° 19.87'; E 68° 56.95' Sutrapada: N 20° 50.18'; E 70° 28.89' Veraval: N 20° 54.87'; E 70° 20.83'

Bryopsis plumosa (Hudson) C. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Remiform and feathery Rocks, coralline stones Lower mid littoral zone November-April Common

Plants light to olive green in colour, growing as tufts or patches, coenocytic, up to 6 cm tall; erect fronds naked below (Fig. a), regularly plumose above with basal rhizomatous portions; branching pinnate and bipinnate with long branches below and short once above giving arrow head appearance (Fig. b).

Bryopsidales, Bryopsidaceae

Distribution

Kotda: N 20° 42.38'; E 70° 52.17' Okha: N 22° 28.41'; E 69° 3.58' Porbandar: N 21° 37.92'; E 69° 36.48' Shivrajpur: N 22° 19.87'; E 68° 56.95'

Distribution

Kotda: N 20° 42.38'; E 70° 52.17' Okha: N 22° 28.41'; E 69° 3.58' Porbandar: N 21° 37.92'; E 69° 36.48' Shivrajpur: N 22° 19.87'; E 68° 56.95'

Trichosolen mucronatus (B0rgesen) W. R. Taylor

Trichosolen mucronatus (B0rgesen) W. R. Taylor

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Tubular branched Rocks, coralline stones

Lower mid littoral zone and on floating structures in the sea

November-April

Rare

Plants yellowish green in colour, siphonous, erect, branched thallus, 5 - 10 cm tall, central axis terete, densely covered with cylindrical pinnae from all sides (Figs. a, b); pinnae simple, 160 - 250 pm diameter, 2 - 3 mm long and loosely arranged on the axis; gametangia oblong with mucronate tips (Fig. c). Fronds are of transparent green, glossy and shining and completely coenocytic without septa.

Caulerpa fastigiata Montagne f. delicatula Thivy & Visalakshmi

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal stones buried in sand Lower mid littoral zone September - December Moderate

Plants dark green in colour, up to 3 cm in height, completely coenocytic, growing as vast mats (Fig. a) with filamentous rhizomes and erect assimilators; assimila-tors branched, up to third degree, the lateral branches clavate, sometimes crowded, alternate, opposite, 1 - 2 mm long (Fig. b). Unlike other species of this genus, there is no much difference between stoloniferous and erect branches. Forms dense sand binding mats in sheltered areas.

Bryopsidales, Caulerpaceae

Distribution

Okha: N 22° 28.43'; E 69° 4.17' Porbandar: N 21° 37.33'; E 69° 36.48' Samiani Island: N 22° 29.30'; E 69° 05.20'

Caulerpa microphysa (Weber van Bosse) J. Feldmann

Distribution

Okha: N 22° 28.43'; E 69° 4.17' Porbandar: N 21° 37.33'; E 69° 36.48' Samiani Island: N 22° 29.30'; E 69° 05.20'

Caulerpa microphysa (Weber van Bosse) J. Feldmann

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping

Intertidal rocks, stones covered with coarse sand Infra littoral fringe, rock crevices November-April Moderate

Plants bright to dark green in colour, coenocytic, up to 5 cm tall with slender creeping rhizomes and cylindrical erect assimilators (Figs. a, b); ramuli crowded on the assimilators, attached perpendicularly to the axes, sessile or stalked with definite constriction below the globular branchlets (Fig. c). The creeping axes well buried in the sand. It is commonly described as C. lentillifera. This alga is used in salad preparations in Japan, Thailand and Philippines. Due to high market demand, it is cultivated in ponds

Bryopsidales, Caulerpaceae

Distribution

Rajpara: N 20° 47.46'; E 71° 12.16' Samiani Island: N 22° 29.06'; E 69° 05.30'

Caulerpa peltata Lamouroux

Distribution

Rajpara: N 20° 47.46'; E 71° 12.16' Samiani Island: N 22° 29.06'; E 69° 05.30'

Caulerpa peltata Lamouroux

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, exposed rocks

November-April

Scanty

Plants bright green in colour, growing as patches, coenocytic with prostrate rhizomes and characteristic short erect assimilators (Fig. a); assimilators 2 - 4 cm tall with radially arranged ramuli; ramuli peltate with slender pedicels or stalks, 1 - 2 mm long ending with a disks of 1 - 2 mm thick and 3 - 8 mm broad (Fig. b). Plants mostly found on sheltered calcareous rocks.

Bryopsidales, Caulerpaceae

b

Caulerpa racemosa (Forsskâl) J. Agardh

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.44'; E 69° 4.21' Porbandar: N 21° 37.92'; E 69° 36.48' Shivrajpur: N 22° 19.87'; E 68° 56.95' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa racemosa (Forsskâl) J. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks, calcareous rocks Lower mid littoral zone, tide pools November-April Moderate

Plants pale green in colour, growing as patches, coenocytic with prostrate rhizomes and erect assimilators (Fig. a); assimilators often much crowded on the rhizomes, 2 - 5 cm tall with radially and closely arranged ramuli, simple or sparingly forked, covered with clavate to spherical branchlets; stalks of the branch-lets short (Fig. b). Most commonly associated with dead corals.

Bryopsidales, Caulerpaceae

Distribution

Okha: N 22° 27.06'; E 69° 4.02' Porbandar: N 21° 37.92'; E 69° 36.48' Shivrajpur: N 22° 19.87'; E 68° 56.95' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa racemosa (Forsskâl) J. Agardh v. corynephora (Montagne) Weber-van Bosse

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in water streams

November-April

Moderate

Plants dark green in colour, occurring in patches, coenocytic, 8 - 10 cm tall with prostrate rhizomes and erect assimilators; assimilators with radially arranged clavate and compressed ramuli.

Bryopsidales, Caulerpaceae

Distribution

Okha: N 22° 28.44'; E 69° 4.20' Porbandar: N 21° 37.92'; E 69° 36.48' Shivrajpur: N 22° 19.87'; E 68° 56.95' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa racemosa (Forsskâl) J. Agardh v. macrophysa (Sonder ex Kützing) Taylor

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in tidal pools

November-April

Moderate

Plants dark green in colour with creeping stolons with short erect assimilators (Fig. a) and rhizoids; assimilators 3 - 5 cm tall, irregularly branched; branchlets arising at 2 - 4 mm intervals, obconical with broad ends, hemispherical to convex, 3 - 5 mm in diameter.

Bryopsidales, Caulerpaceae

3 cm

Caulerpa racemosa v. occidentalis (J. Agardh) B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in tide pools

November-April

Moderate

Plants yellowish green in colour, growing as patches, coenocytic; stolons up to 2 mm in diameter with long erect assimilators; assimilators rarely branched, 2 - 10 cm tall or more with radially arranged ramuli; ramuli with long cylindrical stalks and swollen, ovate or globular apices with convex ends (Figs. a, b).

Bryopsidales, Caulerpaceae

Distribution

Okha: N 22° 28.45'; E 69° 4.18' Porbandar: N 21° 37.92'; E 69° 36.48' Rajapara: N 20° 47.46'; E 71° 12.16' Shivrajpur: N 22° 19.87'; E 68° 56.95' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa racemosa (Forsskâl) J. Agardh var. turbinata (J. Agardh) Eubank

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in tide pools

November-April

Common

Plants bright to dark green in colour, 4 - 6 cm tall, grow as dense patches, sipho-nous with short erect assimilators; assimilators irregularly branched, covered with turbinate or trumpet shaped ramuli with truncated apices; ramuli 2 mm broad and 5 mm long (Figs. a, b).

Bryopsidales, Caulerpaceae

Caulerpa scalpelliformis (Brown ex Turner) C. Agardh var. denticulata B0rgesen

Distribution

Kotda: N 20° 42.38'; E 70° 52.17' Okha: N 22° 27.06'; E 69° 4.18' Porbandar: N 21° 37.92'; E 69° 36.48' Rajapara: N 20° 47.46'; E 71° 12.16' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa scalpelliformis (Brown ex Turner) C. Agardh var. denticulata B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, rock pools

November-April

Moderate

Plants bright green in colour, siphonous with rhizomes and erect foliar assimilators; foliar branches up to 20 cm long, 2 - 3 cm broad, simple with forked or lobed margins, the upper ends of marginal lobes broadly rounded, slightly curved and denticulate (Figs. a, b). Grows commonly on calcareous rocks in tide pools and streams.

Bryopsidales, Caulerpaceae

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.46'; E 69° 4.24' Porbandar: N 21° 37.92'; E 69° 36.48'

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.46'; E 69° 4.24' Porbandar: N 21° 37.92'; E 69° 36.48'

Caulerpa scalpelliformis (Brown ex Turner) C. Agardh f. dwarkensis B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Rhizomatous with flat assimilators Intertidal rocks, coralline stones Lower mid littoral zone, tide in pools November-April Scanty

Plants are pale to dark green in colour, siphanaceous, coenocytic with rhizomes and long erect foliar assimilators, simple or branched assimilators; assimilators 20 cm long, up to 2 cm broad with marginal lobes; lobes mostly straight (Figs. a, b). This alga also grows abundantly in tide pools on sheltered rocks.

Bryopsidales, Caulerpaceae

Distribution

Okha: N 22° 28.42'; E 69° 4.51' Porbandar: N 21° 37.92'; E 69° 36.48' Rajapara: N 20° 47.46'; E 71° 12.16' Veraval: N 20° 54.87'; E 70° 20.83'

Distribution

Okha: N 22° 28.42'; E 69° 4.51' Porbandar: N 21° 37.92'; E 69° 36.48' Rajapara: N 20° 47.46'; E 71° 12.16' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa sertularioides (S. Gmelin) Howe f. brevipes (J. Agardh) Svedelius

Caulerpa sertularioides (S. Gmelin) Howe f. brevipes (J. Agardh) Svedelius

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in tide pools

November-April

Moderate

Plants bright to dark green in colour, tubular with delicate, branched stolon and long erect assimilators, plumose or feathery (Fig. a) resembling palm leaves, up to 13 cm tall, 8 - 12 mm broad, rarely branched, branching generally at the base of assimilators; branchlets opposite, incurved above, needle shaped with pointed apices (Fig. b). Common on stones covered with fine sediment.

Bryopsidales, Caulerpaceae

b

Distribution

Okha: N 22° 28.46'; E 69° 4.51' Porbandar: N 21° 37.92'; E 69° 36.48' Samiani Island: N 22° 29.30'; E 69° 05.20' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa taxifolia (Vahl) C. Agardh

Distribution

Okha: N 22° 28.46'; E 69° 4.51' Porbandar: N 21° 37.92'; E 69° 36.48' Samiani Island: N 22° 29.30'; E 69° 05.20' Veraval: N 20° 54.87'; E 70° 20.83'

Caulerpa taxifolia (Vahl) C. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping

Intertidal rocks, calcareous stones

Lower mid littoral zone, common in tide pools

November-April

Moderate

Plants are yellow to dark green in colour, forming mat-like structures with creeping stolon with erect assimilators (Fig. a); assimilators simple or branched, sometimes with 4 - 5 branches at a time, stalked below, pinnately divided, 4 - 19 cm long and 8 - 13 mm broad; pinnules opposite, compressed, sickle shaped with constricted base, overlapping along edges with pointed apices (Fig. b). It quietly resembles C. sertularioides but more robust. It also grows commonly in tide pools on sheltered rocks.

Bryopsidales, Caulerpaceae

Caulerpa veravalensis Thivy & Chauhan

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Ramiform and creeping Intertidal rocks

Lower mid littoral zone, common in tide pools

November-April

Moderate

Plants dark green in colour, grows as dense mats on stones covered with fine sand, coenocytic creeping runner with rhizomes and long erect assimilators, assimilators simple or branched; assimilators up to 22 cm tall, 7 - 15 mm broad, compressed, pinnately divided with flat and broad midrib and ramuli (Fig. a); ramuli flat, opposite or alternate, ascending, not curved, 1 - 1.5 mm wide, 5 - 7 mm long with round apices, tips of ramuli rarely bifurcate (Fig. b). It is quite common in tide pools.

Bryopsidales, Caulerpaceae b

2 cm

Distribution

Okha: N 22° 28.39'; E 69° 4.50' Samiani Island: N 22° 29.30'; E 69° 05.20'

2 cm

Distribution

Okha: N 22° 28.39'; E 69° 4.50' Samiani Island: N 22° 29.30'; E 69° 05.20'

Caulerpa verticillata J. Agardh

Thallus form and type Substratum Occurrence Season Abundance Description

Ramiform and creeping

Intertidal rocks covered with fine sand

Lower mid littoral zone, sheltered rocks

November-April

Moderate

Plants deep green in colour, very delicate, stoloniferous with stolons and simple or branched and erect assimilators (Fig. a); assimilators 7 cm tall bearing whorls of cylindrical determinate branchlets (Fig. b); determinate branchlets dichoto-mously branched 4 - 7 times; ramuli cylindrical, 0.75 - 1.25 mm in length, tapering at the apices; apices mucronate. It grow as dense mats on stones covered with fine sand.

Bryopsidales, Codiaceae yt b b

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.37'; E 69° 3.55' Porbandar: N 21° 37.92'; E 69° 36.48' Veraval: N 20° 54.87'; E 70° 20.83'

Codium decorticatum (Woodward) Howe

Distribution

Dwarka: N 22° 14.61'; E 68° 57.28' Okha: N 22° 28.37'; E 69° 3.55' Porbandar: N 21° 37.92'; E 69° 36.48' Veraval: N 20° 54.87'; E 70° 20.83'

Codium decorticatum (Woodward) Howe

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Remiform and spongy Intertidal rocks, calcareous stones Lower mid littoral zone November-April Moderate

Plants dark green in colour, 10 - 30 cm tall, 3 - 5 mm broad, bushy, seldom proliferous, attached by basal discs (Fig. a), regularly dichotomous, younger branches of the thallus terate, while older ones frequently compressed and slightly expanded below the furcations (Fig. b); utricles cylindrical or clavate, 150 - 850 |om diameter, apices rounded, truncate or depressed, hair scars variable, numerous when present; gametangia born below the fertile utricles, lance-ovoid, several (up to seven) and pedicellate.

Codium species are used in food and medicine. It has been reported to contain blood anticoagulant.

Bryopsidales, Codiaceae

Codium dwarkense B0rgesen

Thallus form and type Substratum Occurrence Season Abundance Description

Remiform and spongy

Intertidal rocks and calcareous stones

Lower mid littoral zone, water streams

November-April

Moderate

Plants light green in colour, attached by flat discs with many erect cylindrical axes; erect axes 16 cm or more tall (Fig. a), terete, 2 - 4 mm broad, many times regularly dichotomously divided at a distance of 2 - 3 cm or a little more between the divisions; angles between branches narrow, straight and upwardly directed (Fig. b). Utricles clavate. It also found growing along with Sargassum beds.

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