Rhodophyta-3

Life Modes

PorphyridiumPurpureumVis.jpg (57872 bytes)

Porphyridium sp.:
A unicellular species

Most species are Autotrophs.Some are Epiphytes while a few are Endophytes with Diatoms.

Some are Symbionts and some are Parasites

Class Bangiophyceae


Growth Forms Bangiophyceae

Mostly Marine with a few freshwater species.

They include Unicellular and Filamentous species.

The latter range from Uniseriate to Multiseriate filaments.

They may be Unbranched or Branched, Prostrate or Upright

Rhodochloron is an example of a simple branched

RhodochloronThallusHue.jpg (103502 bytes)

Rhodochloron

filamentous morphology.

They may be Monostromatic (One Layer Thick) or

Polystromatic (Many Layers)

The Most Advanced forms are called Diffuse Foliose and their Cells Divide in 2 - 3 Planes

Attachments

Polystromatic:Prostrate Form

They are attached to the substrate by a Holdfast Cell or a Group of Rhizoidal Cells at the base of the Thallus.