Desmids from Thailand and Malaysia

60 M. HIRANO
Joshua 1886, Jour. Linn. Soc. Bot. 21, 636, Pl.22, f.12; Krieger & Gerloff 1939, 13:2,
97, Pl.130, f.5; Scott & Prescott 1961, 49, Pl.17, f.1-3.
L. 202-228 xtm, B. 194-220 ptm, and I. 17.5-22 ptm. Cells rhomboidal-circular,
deeply constricted at the middle, sinus narrowly linear but outer part acutely open;
semicells 5-lobed, incision between polar and lateral lobes narrowly linear, lower part of
a polar lobe parallel in sides, upper part widely dilated, apex widely retuse, lateral lobes
divided into two parts of lobules and each of them further divided into two parts, each
part gradually narrow to the extremity and its end deeply emarginate. Sts. 19,22. India,
Burma, Indonesia (Sumatra, Borneo), Japan. New to Thailand.
10. M. mahabuleshwarensis Hob. var. mahabuleshwarensis Pl.30, f.9,10.
Krieger & Gerloff 1939, 49, Pl.109, f.7-10; Ruzicka 1981, 593, Pl.99, f.1-5; FOrster
1982, 376, Pl.57, f.1.
L. 136-150 #m, B. 119-130 psm, and I. 17.5-22 ptm. Sts. 26,43,51. India, Burma,
Ceylon, Thailand, Indonesia (Java), Cambodia, U.S.A., Brazil, Africa, Australia.
10a. var. surculifera Lagerh.
Krieger 1932, 218, Pl.23, f.2; Krieger & Gerloff 1939, 53, Pl.111, f.1,2; Scott & Pre-
scott 1961, 50, Pl.16, f.1,2.
L 138-141 xtm, B. 123-128, ptm, and I. 18-19 um. St. 20. India, Ceylon, Thai-
land, Indonesia (Java, Sumatra).
10b. var. wallichii (Grun.) W.&G.S.West Pl.30, f.11.
West 1905, 2, 122, Pl.54, f.7,8, Pl.55, f.1-3; Krieger & Gerloff 1939, 54, Pl.111,
f.8.9; Ruzicka 1981, 602, Pl.100, f.5-13; F6rster 1982, 379, Pl.57, f.4.
L. 145-198 ptm, B. 97-119 ptm, and I. 17.6-22 ym. St. 22. India, Burma, Japan,
Europe, Australia, New Zealand. New to Thailand.
11. M. moebii (Borge) W.&G.S.West var. moebii Pl.24, f.1.
Krieger 1939, 13:2, 42, Pl.107, f.4-6.
L. 119-128 ym, B. 106-114 ptm, and I. 31-33 ptm. St. 22. Thailand, Australia.
11a. var. burmense W.&G.S.West Pl.24, f.2.
West 1907, Ann. R. Bot. Calcatta 6, 201, Pl.14, f.19,20; Krieger & Gerloff 1939,
13:1, 43, Pl.107, f.7,8.
L. 119-132 ptm, B. 108-110 #m, and I. 39-40 ptm. St. 21. India, Burma. New to
Thailand.
12. M. pinnatifida (KUtz.) Ralfs Pl.29, f.7.
West 1905, 2, 80, Pl.41, f.7-11; Krieger 1932, 218, Pl.23, f.4; Ruzicka 1981, 571,
Pl.93, f.1-13; Fdrster 1982, 383, Pl.49, f.1-3.
L. 59-66 pm, B. 65-66 xtm, and I. 10-11 ptm. Sts. 10,19,22,24,32,47,51. India,
Ceylon, Thailand, Indonesia (Borneo), Europe, U.S.A., Brazil.
13. M. radians Turner var. radians P129, f.9.
Krieger & Gerloff 1939, 67, Pl.115, f.8, Pl.116, f.1; Scott & Prescott 1961, 51, Pl.23,