188 A CENTURY OF PROGRESS IN THE NATURAL SCIENCES 



Order GELIDIALES Kylin (1923, p. 132) 



Family Gelidiaceae Kiitzing orth. mut. Harvey (1853, p. 7) 

 Order CRYPTONEMIALES Schmitz, in Engler (1892, p. 21) 

 Family Dumontiaceae Bory orth. mut. Schmitz (1889, p. 453) 

 Family Rhizophyllidaceae Montague orth. mut. Schmitz (1889, p. 454) 

 Family Polyideaceae Kylin (1944a, p. 34) 



Syn.: Spongiocarpeae Greville (1830, p. 68) 

 Family Squamariaceae (J. Agardh) Hauck (1883, p. 13) 

 Family Solenoporaceae Pia (1927, p. 97) 



Family Hildenbrandiaceae (Trevisan) Rabenhorst (1868, p. 408) 

 Family Corallinaceae (Lamouroux) Harvey (1849, p. 74) 

 Family Gloiosiphoniaceae Schmitz, in Engler (1892, p. 21) 

 Family Dermocorynidaceae Hollenberg (1940, p. 871) 

 Family Endocladiaceae (J. Agardh) Kylin (1928, p. 41) 

 Family Tichocarpaceae (Schmitz) Kylin (1932, p. 69) 

 Family Cryptonemiaceae (J. Agardh) Harvey (1849, p. 75; see also 

 Hauck, 1883, p. 16) 



Syn.: Grateloupiaceae Schmitz, in Engler (1892, p. 21) 

 Family Kallymeniaceae (J. Agardh) Funk (1927, p. 389) 

 Family Choreocolacaceae Sturch (1926, p. 602) 

 Order GIGARTINALES Schmitz, in Engler (1892, p. 18) 

 Syn.: Nemastomales Kylin (1925, p. 39); Sphaerococcales Sjostedt (1926, 

 p. 75) 



Family Cruoriaceae (J. Agardh) Kylin (1928, p. 29) 



Family Calosiphoniaceae Kylin (1932, p. 5) 



Family Nemastomaceae (J. Agardh) Schmitz (1889, p. 453) 



Syn.: Gymnophlaeaceae Kiitzing (1843, p. 389); Yadranellaceae 

 Ercegovic (1949, p. 36). The latter family is placed here at the sug- 

 gestion of Dr. Isabella Abbott, personal communication. 

 Family Furcellariaceae Greville orth. mut. Kylin (1932, p. 11) 

 Family Sebdeniaceae Kylin (1932, p. 12) 

 Family Solieriaceae (Harvey) Hauck (1883, p. 17) 

 Family Rissoellaceae (J. Agardh) Kylin (1932, p. 31) 

 Family Rhabdoniaceae Kylin (1925, p. 38) 

 Family Rhodophyllidaceae Schmitz, in Engler (1892, p. 19) 

 Family Hypneaceae J. Agardh (1852, p. 430) 

 Family Plocamiaceae Kiitzing orth. mut. Kylin (1930, p. 45) 

 Family Sphaerococcaceae Dumortier orth. mut. Cohn (1872a, p. 17) 

 Family Stictosporaceae Kylin (1932, p. 53) 

 Family Sarcodiaceae Kylin (1932, p. 54) 

 Family Gracilariaceae (Nageli) Kylin (1930a, p. 54) 

 Family Mychodeaceae (Schmitz et Hauptfleisch) Kylin (1932, p. 62) 

 Family Dicranemaceae (Schmitz et Hauptfleisch) Kylin (1932, p. 65) 

 Family Acrotylaceae Schmitz, in Engler (1892, p. 18) 

 Family Phyllophoraceae Nageli (1847, p. 248) 

 Family Gigartinaceae Bory orth. mut. Cohn (1880, p. 286) 

 Family Chondriellaceae Levring (1941, p. 640) 

 Order RHODYMENIALES Schmitz, in Engler (1892, p. 19) 

 Family Rhodymeniaceae Harvey (1849, p. 75) 

 Family Champiaceae Kiitzing orth. mut. Bliding (1928, p. 64) 

 Syn.: Lomentariaceae Nageli (1847, p. 244) 

 Order CERAMIALES Oltmanns (1904, p. 683) 



Family Ceramiaceae (S. F. Gray) Harvey orth. mut. Rabenhorst (1847, 

 p. xiii) 



Syn.: Wrangeliaceae J. Agardh orth. mut. Harvey (1853, p. 8); Spyri- 

 diaceae J. Agardh orth. mut. Harvey (1853, p. 8) 

 Family Dasyaceae Kiitzing orth. mut. Rosenberg (1933, p. 83) 

 Family Delesseriaceae Bory orth. mut. Nageli (1847, p. 208) 



