Desmids from Thailand and Malaysia

(Java, Sumatra), Japan, Australia.
42. EturneriW.West Pl.29,f.1.
West 1905, 2, 37, Pl.37, f.9,10; Krieger 1932, 216, Pl.20, f.15 (forma); Krieger 1937,
589, Pl.82, f.20,21.
L 26.5-46 um, B. 22-31 ptm, and I. 6.5-8.5 #m. Sts. 26,36,39, Indonesia (Suma-
tra, Bali), Europe, Africa, Australia, New Zealand.
43. E. validum W.&G.S.West var. validum Pl.22, f.11; Pl.26, f.14.
Krieger 1937, 74, Pl.74, f.18-20; Ruzicka 1:2, 452, Pl.74, f.3-8.
L. 35 um, B. 26.5 ptm, and I. 6.5 ptm. Sts. 1,40. Ceylon, Europe, N. America. New
to Thailand.
43a. var. glabrum Krieger Pl.22, f.13.
Krieger 1937, 547, Pl.74, f.21,22; Hirano 1967, Nat. Life SEA. 5, 61, Pl.9, f.6; F6rster
1982, 344, Pl.40, f.3.
L. 22-28.5 ptm, B. 15.4-22 ptm, and I. 5-6.5 ptm. Sts. 1,36,40. Burma, Thailand,
Indonesia (Borneo).
43b. var. subvatidum (Behre) F6rster Pl.26, f.14.
F6rster 1982, 344, Pl.40, f.4,5.
L. 22 xtm, B. 15.4 Ltm, and I. 4.5 ptm. St. 5. Indonesia (Sumatra), Philippines, Brazil,
Africa. New to Thailand.
1.
2.
3.
4.
Micrasterias alata Wall. Pl.26, f.19.
Krieger 1932, 217, Pl.24, f.4; Krieger & Gerloff 1939, Micrasterias 61, Pl.114, f.1-4;
Scott & Prescott 1961, 45, Pl.15, f.4; F6rster 1982, 355, Pl.55, f.2,3.
L. 189-202 ptm, B. 176-180 ptm, and I. 15.4-17.3 ptm. Sts. 20,21,24. India, Burma,
Ceylon, Indonesia (Java), Cambodia, U.S.A., Brazil, Australia.
M. anomala Turner Pl.32, f.1.
Turner 1892, K. Sv. Vet. Akad. Handl. 25, 97, Pl.22, f.1; West 1897, Jour. Linn. Soc.
Bot. 33, Pl.9, f.1; Krieger & Gerl. 1939, 77, Pl.121, f.9,10; Scott & Prescott 1961, 45,
Pl.19, f.1-4.
L. 288 Ltm, B. 193 xtm, and I. 35 ptm. Basal part ofapolar lobe not cylindrical but
widely excavated (shown as by Turner, West and Playfair) at the extremity of the inci-
sion between polar and upper lateral lobes. St. 10. India, Burma, Singapore. New to
Malaysia.
M. apiculata (Ehrenb.) Menegh. var. lacerata Turner Pl.28, f.4.
Turner 1892, 94, Pl.22, f.3; West 1908, 3, 97, Pl.47, f.1,2; Krieger 1939, 80, Pl.122,
f.5-7; Hirano 1967, AE. Asia 5, 62, Pl.15, f.5.
L. 264-273 ptm, B. 189-198 ptm, and I. 33-35 um. St. 45. India, Ceylon, Burma,
Cambodia, Malaysia (Malacca), Japan, Europe, Africa.
M. arcuata Bail. var. arcuata ' P126, f.22,23.
Krieger & Gerloff 1939, 10, Pl.97, f.1-3; FOrster 1982, 360, Pl.48, f.4,5.