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Electronic Flora of South Australia Genus Fact Sheet
Phylum Rhodophyta – Class Florideophyceae – Order Corallinales – Family Corallinaceae – Subfamily Corallinoideae – Tribe Janieae
Thallus tufted, with few to numerous erect, pinnate, geniculate fronds, often with adventitious branchlets, intergenicula usually compressed and cuneate in main branches, terete in branchlets; holdfast crustose, often becoming stoloniferous, epilithic or epiphytic. Structure. Intergenicula with 3–6 tiers of medullary cells with lateral cell-fusions but without lateral pit-connections. Genicula of single tiers of elongate, darker staining cells. Cortex present on intergenicula, filaments assurgent to anticlinal, outer cells bearing short epithallial cells.
Reproduction: Conceptacles axial and terminal, branchlets usually present on carposporangial and tetrasporangial conceptacles. Gametangial thalli dioecious. Carpogonial filaments 2-celled, arising on floor of female conceptacles, carposporangia in short filaments near the margins of a relatively thick fusion cell. Male conceptacles without branchlets, elongate-ovoid to fusiform and not beaked, spermatangia produced basally and on the sides of the chamber.
Tetrasporangia in swollen conceptacles, ovoid-urceolate, with relatively few (<15) tetrasporangia.
Life history triphasic with isomorphic gametophytes and tetrasporophytes.
Lectotype species: Haliptilon cuvieri (Lamouroux) Johansen & Silva (1978, p. 417) = H. roseum (Lamarck) Garbary & Johansen.
References:
JOHANSEN, H.W. & SILVA, P.C. (1978). Janieae and Lithotricheae: two new tribes of articulated Corallinaceae (Rhodophyta). Phycologia 17, 413–417.
LINDLEY, J. (1846). &ldquot;The Vegetable Kingdom.&rdquot; (Bradbury & Evans: London.)
The Marine Benthic Flora of Southern Australia Part IIIB complete list of references.
Publication:
Womersley, H.B.S. (28 June, 1996)
The Marine Benthic Flora of Southern Australia
Rhodophyta. Part IIIB. Gracilarialse, Rhodymeniales, Corallinales and Bonnemaisoniales
Reproduced with permission from The Marine Benthic Flora of Southern Australia Part IIIB 1996, by H.B.S. Womersley. Australian Biological Resources Study, Canberra. Copyright Commonwealth of Australia.
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