Electronic Flora of South Australia Family Fact Sheet

FAMILY PORPHYRIDIACEAE Kylin 1937: 122

Phylum Rhodophyta – Class Bangiophyceae – Order Porphyridiales

Thallus unicellular, colonial or pseudofilamentous, with the cells distinctly separated within the filaments and often slightly irregularly placed. Rhodoplasts stellate or lobed, with a central pyrenoid.

Reproduction: Reproduction by cell division or release of whole vegetative cells as spores.

Taxonomic notes: A family of some 9 genera, 6 of which are marine (Garbary et al. 1980b, p. 144). Three genera are currently known from southern Australia.

References:

GARBARY, D.J., HANSEN, G.I. & SCAGEL, R.F. (1980b). The marine algae of British Columbia and northern Washington: Division Rhodophyta (red algae), Class Bangiophyceae. Syesis 13, 137–195.

KYLIN, H. (1937). Uber eine marine Porphyridium - Art. K. Fysiogr. Sällsk. Lund Förhandl. 7, 119–123.

The Marine Benthic Flora of Southern Australia Part IIIA complete list of references.

Author: H.B.S. Womersley

Publication: Womersley, H.B.S. (14 January, 1994)
The Marine Benthic Flora of Southern Australia
Rhodophyta. Part IIIA, Bangiophyceae and Florideophyceae (to Gigartinales)
Reproduced with permission from The Marine Benthic Flora of Southern Australia Part IIIA 1994, by H.B.S. Womersley. Australian Biological Resources Study, Canberra. Copyright Commonwealth of Australia.

KEY TO GENERA OF PORPHYRIDIACEAE

1. Thallus unicellular or forming an irregular layer of adjacent cells

PORPHYRIDIUM

1. Thallus erect and filamentous, uniseriate or multiseriate

2

2. Thallus with few branches and the gelatinous sheath containing a single row of separated, ovoid, cells; plastid blue-green; usually in brackish water

CHROODACTYLON

2. Thallus with few to numerous, subdichotomous to irregularly alternate, branches, with a single row of oblong to cubical cells or multiseriate with ovoid cells, fairly closely adjacent; plastid red; in marine waters

STYLONEMA


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