^28 A CENTURY OF PROGRESS IN THE NATURAL SCIINdS 



able that future work will show that this family or some of its members 

 actually belong in the Siphonocladales, a group with which he had 

 allied them.) 

 Family Trentepohliaceae Hansgirg (1886, p. 85) 



Syn.: Chroolepidaceae Rabeuhorst (1868, pp. 287, 300, 371); Mycoidea- 

 ceae (van Tieghem) De Toni (1888, p. 447) ; Hansgirgiaceae (De Toni) 

 De Toni (1889, p. 262); Ctenocladaceae Borzi (1895, p. 353); Phyco- 

 peltidacees Marchand (1595, p. 14) 

 tFamily Microthamniaceae West (1904, p. 89) 

 Family Wittrockiellaceae Wille (1909a, p. 222) 

 Family Coelodiscaceae Jao (1941, p. 294; see also 1947, p. 255) 

 Family Schizomeridaceae G. M. Smith (1933, p. 452) 

 Family Monostromaceae Kunieda ex Suneson (1947, p. 245) 

 Family Ulvaceae Lamouroux orth. mut. Dumortier (1822, p. 72) 

 Syn.: Capsosiphonaceae Chapman (1952, p. 55) 

 Order SPHAEROPLEALES (Fritsch) Prescott (1951, p. 110) 



Family Sphaeropleaceae Kiitzing (1849, p. 362) 

 Order OEDOGONIALES Blackman et Tansley ex West (1904, p. 55) 



(According to the current Code, the nomenclature of this order starts with 

 Hirn, 1900.) 



Family Oedogoniaceae (Thuret) De Bary orth. mut. Stizenberger ex Hirn 

 (1900, p. 1) 

 - Order SCHIZOGONIALES West (1904, p. 56) 



Syn.: Prasiolales Fritsch, in West (1927, p. 164) 



Family Prasiolaceae (Rabenhorst) Borzi orth. mut. Blackman et Tansley 

 (1902, p. 138) 

 Syn.:, Schizogoniaceae Chodat (1902, p. 341, as Schizogoniacees) ; 

 Blastosporaceae Jessen orth. mut. Wille (1909b, p. 73) 

 Order CHLOROCOCCALES Marchand orth. mut. et emend. Pascher (1915, p. 2) 

 Syn.: Protococcales (Meneghini) Kirchner orth. mut. Engler (1892, p. 9, p.p.) 

 (See Silva and Starr, 1953, on the nomenclature of Chlorococcum.) 

 Family Chlorococcaceae Blackman et Tansley (1902, p. 95) 



Syn.: Planosporaceae West (1916, p. 209); Chlorochytriaceae (West) 

 Setchell et Gardner (1920, p. 146) ; Endosphaeraceae Klebs (1883, p. 

 344); Nautococcaceae Korshikov (1926, p. 491) 

 Family Chlorellaceae (Wille) Brunnthaler (1913, p. 86) 



Syn.: Micractiniaceae (Brunnthaler) G. M. Smith (1950, p. 232) 

 Family Dictyosphaeriaceae (De Toni) West (1916, p. 190) 

 Family Characiaceae (Nageli) Wille, in Warming (1884, p. 23) 



Syn.: Characiochloridaceae Skuja (1948, p. 99), nomen nudum 

 Family Characiosiphonaceae Iyengar (1936, p. 317) 

 Family Gomontiaceae Bornet et Flahault ex De Toni (1889, p. 389) 

 (This family is placed in the order Chlorococcales on the strength of 

 Kylin's [1935] observations. It has been pointed out to me by Dr. J. 

 Proskauer and Dr. R. H. Thompson [personal communications] that 

 Gomontia may possibly be intimately connected with such forms as 

 Kentrosphaera, Excenti'osphaera, and Chlorochytrium.) 

 Family Protosiphonaceae Blackman et Tansley (1902, p. 115) 

 Family Hydrodictyaceae (S. F. Gray) Dumortier orth. mut. Cohn (1880, 

 p. 289) 



Syn.: Pediastraceae Wille, in Warming (1884, p. 23) 

 Family Coelastraceae (West) Wille (1909b, p. 64) 

 Family Botryococcaceae Wille (1909b, p. 32; see Blackburn, 1936) 

 Family Oocystaceae Bohlin (1901, pp. 17, 25) 



Syn.: Glaucocystidaceae Bohlin (1901, p. 25), nomen nudum; Eremo- 

 sphaeraceae (Wille) Brunnthaler (1913, p. 86); Selenastraceae (Black- 

 man et Tansley) Fritsch, in West (1927, p. 127) 

 Family Scenedesmaceae Oltmanns (1904, p. 183) 



