Bangiales Bangiaceae

Distribution

Porphyra sp

Porphyra sp

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Note

Distribution

Leafy and blade type Intertidal rocks

Upper mid littoral zone, occasionally on splash zone

July-September

Scanty

Plants up to 3 cm tall, 1 - 2 cm broad, foliose reddish pink in colour (Figs. a, b); monostromatic, membranous, grows as scattered tufts on rocks, attached with discoid holdfast, cells round or rectangle in shape in surface view, stellate plastid, margins with distinct spines (Fig. c)

Porphyra, popularly known as nori or laver, is delicacy in Japan. Porphyra is rich in proteins and free amino acids besides other essential nutrients of human importance. Porphyra farming and processing is a big socio-economic industry in Japan, China and Korea. The annual production of Porphyra is about 1.5 million tons (dry wt) worldwide.

B. Jha et al., Developments in Applied Phycology,

DOI 10.1007/978-90-481-2488-6_3, © Springer Science + Business Media B.V. 2009

Scinaia carnosa (Kützing) J. Agardh

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Bushy, cylindrical and succulent

Intertidal rocks, rocks covered with coarse sand

Lower mid littoral zone and infra littoral fringe

November-April

Scanty

Plants dark pinkish red in colour, up to 17 cm tall, opaque, dichotomously branched many times, slender; thallus cylindrical, deeply constricted at irregular intervals with narrow angles (Figs. a, b), central axis not visible when dry, multiaxial with central axial filaments and peripheral utricles; utricles flat topped, closely packed in a palisade fashion; cystocarps minute, scattered and not clearly visible to the naked eye.

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