Cryptonemiales Peyssonneliaceae

Peyssonnelia obscura Weber na Bosse var. bombayensis B0rgesen

Thallus form and type

Substratum

Occurrence

Season

Abundance

Description

Distribution

Crustose

Coralline stones

Lower mid littoral zone

April

Scanty

Plants dark red in colour, crustose, orbicular, attached by unicellular rhizoids arising from the lower surface (Fig. a); margins free, thallus composed of single row of hypothelial cells and vertical rows of perithalial filaments; perithallial filaments 4 - 6 celled.

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