243- 
Family PLEUROCOCCACEA. 
[For forms of Trochisia. Kiitz. (Acanthococcus Lagerh.), generally included 
here, see Algal Fungi, family Synchitriacee. My reasons for this change 
will be found in Biol. Richmond R., Proc. Linn. Soc. N.S.W., 1914, pp. 136-7} 
Family HYDRODICTYACEA.. 
Hydrodictyon Roth, 1800. Tent. Flor: germ., p. 531. 
reticulatum. (L.), Lagerh.,. Bidr. t. Sveriges Algfl., p. 71, 1883! 
(H. utriculatum Roth. [c.) 
(Conferva reticulata Linn:, Spec. Plant-, p: 1635:) - 
(Hydrodictyon pentagonum Vauch., Hist. des Conf., p. 88, 'T. i, f. 4; 
Tey f I=10ye - ; ; 
var. minimum Playf., Biol. Richmond R., p. 109, PI. 3; f. 23, 1914. 
var: nodosum Pliyf., ibid’, Plt 3, £. 24. 
var. Bernardii Playf., abid., Pl. 3, f. 25. 
Pediastrum Meyen, Beob. iiber Algenfi., p. 772, 1829. 
tetras (Ehr.) Ralfs, Ann. Nat. Hist., xiv, p. 46, Pl. 12, f. 4, 1844. 
(Micr. tetras Ehr., Infus., p. 155, Pl..11, f. 1, 1838.) 
var. cuspidatum Bailey, Silliman’s Am. Journ., 1841, T.1, f..19. 
(Pedi. Ehrenbergil Braun, Alg, Unicell., p. 97, /P. v, f. H3, 4, 1855.) 
var. integrum (Nag.) Playf., Biol. Richmond R:, p. 110, Pl. 3, f. 26, 1914. 
(Pedi. integrum Nag., Gatt.. Hinze Alg.,.p..96, P15, f. B4, 1849.) 
var. longicornutuny.(Gutw.) milk: 
(Pedi. biradiatum v. longicornutum Gutw., Nonn. Alg. Nov., p. 35, 
Pl. 7, f. 64, 1896.) 
(Pedi. tetras,v. longieorne- Rac., G..S.; West, J. Linn. Soc. bot. 
- xxxvili, p. 132, Pl. 5, £. 5, 1907.) 
angulosum: (Ehr,, 1833); Menegh.,, Synw Desm., p. 211,, 1840. 
duplex Meyen, Beob. uber Algenfl., p. 772, Pl. 43, f. 6-10; 1829. 
(P. pertusum., Kiitz., Phye. Germ.,p. 143, 1845.), 
_ var. reticulatum Lagerh., IK. Vet. Akad. Forh,, p. 56, Pl. 2, f. 1, 1882 
simplex Meyen, l.c., Pl. 43, f. 1-5, 1829. 
' var. clathratum (Schrot.) Chod., Alg. vertes, p. 226, 1902. : 
(P. clathratum.(Schrot:). Lemm,, Pléner Forsch., p. 20, 1899.) 
(Pedi. enoplon W. & G. 8. West, Frwv. Alg,, Madagascar, p. 81, 
Pl. 5, f. 1, 2, 1895.) 
var. radians Lemm,, 18975. Forsch; Biol. Stat, z. Plon., p..19,. 1. 2, 
f. 24, 25, 1899. Se cate 
(P. simplex 8 annulatum Chodat, Alg. vertes, p. 225, 1902.) 
var. ovatum, (Zhn.),mihi. 
(Pedi. Sehroteri Uemm., /.¢., p. 20, T2, £33; 1899.) 
(P. clathratum f. oyatum.(Hhr.) Schm.,. Engl. Bot..Jahrb.,p. 84,. 
MVE, Ghoti, TD US ig) j 
(P. ovatum (Ehr-) A. Br.; Alg. Unicel, p. 81,)1855:). 
Boryanum (Turp.) Menegh., in Linnea, xiv, p. 210, 1840; 
var. capitatum Playf., Biol. Richmond: R., p..110, Pl. 8, f. 27, 1914. 
biradiatum Meyen, Beob. ub. Algenfl:, p. 773, I. 43, f. 21, 22; 1829. 
var: Braunii (Wartm.) Chodat, Alg: vertes, p. 230; 1902) 
(P. Braunii Wartmann, Schw. Crypt., No. 321). 
