OF SOUTH AUSTRALIA. 
417 
III.— Class RHODOPHYCEAE (“Red Algae”). 
In the classification of the Rhodophyceae set out below, the list of 
families and the order in which they are given is from “Anatomic der 
Rhodophyceen ” by H. Ivylin (1937). Most of the order and family descrip- 
tions were taken from “Marine Algae of the N.W. Coast of North America’ ’ 
by W. R. Taylor (1937), and descriptions of families not given by Taylor 
are from Kylin’s work. “The Algae and Their Life Relationships” by 
J. E. Tilden (1935) was used in some cases. 
This classification is not necessarily complete in regard to families, for 
much work is still required on the Red Algae, particularly on Southern 
Hemisphere forms. All the families given by Kylin are described, although 
no representatives of several have been found around the southern coasts 
of Australia. Future work, however, may bring to light new species, par- 
ticularly if fresh-water forms are searched for. Nearly all the genera listed 
under the old classification have been placed in the new one, though some 
not mentioned in the books consulted are listed as “probably”, and we have 
been unable to place a few others. The order of the genera given under 
the families in this classification follows their order in the main text. 
In the accompanying outline of the classification, only two of the com- 
moner genera of each of the larger families have been mentioned. The 
other genera will be found in the full classification which follows : — 
Order. 
w 
<1 
H 
g 
2 
o 
- 
o 
Eh 
O 
- 
Bangiales 
Family. 
Genus. 
Bangiaceae 
Bangia, Porphyra 
<3 
o 
K " 1 
s 
PM 
o 
p J 
o 
w 
p* 
m 
go 
< 
P 
o 
< 
a 
a 
2 
o 
a 
fa 
Nemalionales . . 
^ Gelidiales 
Chantransiaceae . . 
Batrachospermaceae 
Lemaneaceae .... 
Helminthocladiaceae 
^ Thoreaceae 
Chaetangiaceae ...... 
Naccariaoeae 
__ Bonnemaisoniaceae . 
Gelidiaceae 
: c 
O 
« 
a 
Cryptonemiales . . 
f Dumontiaceae 
Gloiosiphoniaceae . . . 
Endocladiaceae 
Rhizophyllidaceae . . 
Squamariaceae 
^ Cruoriaceae 
Corallinaceae 
Grateloupiaceae 
Kallymeniaceae .... 
LChoreocolaceae 
Batrachospermum 
Nemalion, etc. 
Galaxaura 
Bonnemaisonia, Asparagopsis, etc. 
Gelidium 
Dasyphloea 
Chondrococcus 
Peyssonnelia 
Corallina , Melobesia , etc. 
Grateloupia, Cryptonemia, etc. 
Kallymenia, Callophyllis, etc. 
