A TOUR TO MODERN CORALLINE ALGAE

PART 5: NONGENICULATE CORALLINE ALGAL TAXA

by Michael Rasser

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FAMILIES

There are two Families of Rhodophyta belonging to the Corallinaceae:

sorus-rem.jpg (11260 Byte) Family Sporolithaceae

with bi/tetrasporangial (i. e., asexual) conceptacles borne in sori.
The most important and well known genus is Sporolithon.

uniporat-rem.jpg (10556 Byte) Family Corallinaceae

with conceptacles not borne in sori.
It contains three subfamilies of nongeniculate corallines
as well as the geniculate corallines.

Remark: The family Sporolithaceae is rather young. Until recently, Sporolithon belonged to the Melobesioideae


SUBFAMILIES OF CORALLINACEAE

are separated by the perforation of bi/tetrasporangial (i. e., asexual) conceptacles and the occurrence of cell fusions.

Lithopylloideae

Conceptacles uniporate, cell fusions absent.
Well known genus: Lithophyllum.

Mastophoroideae

Conceptacles uniporate, cell fusions present.
Some genera: Hydrolithon, Lithoporella, Neogoniolithon, Spongites.

Melobesioideae

Conceptacles multiporate, cell fusions present.
Some genera: Lithothamnion, Mesophyllum, Phymatolithon.

 

Generic descriptions are available from D. Keats.

 

More details about present-day and fossil coralline algae are available from the Mainpage.


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