Ceramiales Wrangeliaceae

Pleonosporium polymorphum Itono

Thallus form and type Substratum Occurrence Season Abundance Description

Filamentous and bushy Intertidal rocks

Infra littoral fringe and sub littoral zone

July-November

Scanty

Plants pink dark colour, 5 - 6 cm tall, epiphytic, attached by many rhizoids arising from the basal parts of the erect axes (Fig. a); erect axis about 120 |om or more thick at the basal parts and thinner above; branching alternate, distichous, single un-branched filaments arising in the lower cells of the branches, these un-branched filaments growing downwards; cystocarps globular in shape, naked or with rudimentary involucral filaments (Fig. b).

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