Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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39. St. gracile Ralfs var. gracile Pl.40, f.9.<br />
West & Carter 1923, 5, 96, Pl.144, f.3-7; Krieger 1932, 199, Pl.18, f.11; Prescott et<br />
al. 1982, 2:4, 212, PL412, f.8- 10, PL413, f.1,2.<br />
L. 26.4 um, Bcpr. 48.4 xtm, <strong>and</strong> I. 8 ptm. Sts. 32,36,41. Ceylon, Burma, Indonesia<br />
(Sumatra, Bali), Japan, Europe, Africa, Australia. New to <strong>Thail<strong>and</strong></strong>.<br />
39a. var. coronulatum Boldt Pl.43, f.9,10.<br />
West & Carter 1923, 5, 100, Pl.144, f.10; Prescott et al. 1982, 2:4, 213, Pl.413, f.3,4.<br />
L. 23-26.4 ym, Bcpr. 35-53 Itm, <strong>and</strong> I. 8-8.6 ym. Cells medium size, slightly<br />
constricted at the middie, sinus widely open <strong>and</strong> acuminated at the extremity; semicells<br />
campanulate, apex almost straight <strong>and</strong> with a pair of verrucae, apical angles produced<br />
into a long, horizontal or slightly divergent process terminated in minute spines; semi-<br />
cells in vertical view tetra-angular, side concave, angles produced into process, long,<br />
slender, <strong>and</strong> non-tapering, denticulated, inside of margin with a pair of granules in each<br />
base of a process. Sts. 7,36,40. Europe, U.S.A., Africa. New to <strong>Thail<strong>and</strong></strong>.<br />
39b. var. elongatum Scott & Prescott<br />
Scott & Prescott 1961, 94, Pl.57, f.10.<br />
L. 40 #m, Bcpr. 62 um, <strong>and</strong> I. 8 ptm. St. 25. Indonesia (Sumatra), New to <strong>Thail<strong>and</strong></strong>.<br />
39c. var. gracile f. kriegeri Scott&Prescott Pl.41, f.13.<br />
Scott & Prescott 1961, 94, Pl.57, f.11.<br />
L. 19.4 ptm, Bcpr. 25.5 ym, <strong>and</strong> I. 7 ptm. Semicells cup-shaped, sinus acute or acu-<br />
minate, outer part widely open; apex of semicell slightly convex, processes relatively<br />
short, apex with 3 denticulations. Sts. 30,32. Indonesia (Java, Sumatra). New to Thai-<br />
l<strong>and</strong>.<br />
39d. var. nanum Wille Pl.40, f.15.<br />
West & Carter 1923, 5, 100, Pl.144, f.8,9; Prescott et al. 1982, 2:4, 213, Pl.413, f.9,10.<br />
L. 27.7 ptm, Bcpr. 33 ptm, <strong>and</strong> I. 8.6 ptm. Cells smaller than those of the typical<br />
form; semicells cup-shaped, apex convex <strong>and</strong> smooth, process relatively short, nearly<br />
horizontal or slightly convergent, margin of a process nodulated; vertical view 3-angular,<br />
sides concave. St. 32. Ceylon, Europe. New to <strong>Thail<strong>and</strong></strong>.<br />
39e. var. ornatum Krieger Pl.40, f.13; Pl.41, f.12.<br />
Krieger 1932, 200, Pl.18, f.13.<br />
L. 24 xtm, Bcpr. 47 ptm, <strong>and</strong> I. 5.5 ptm. Sts. 23,25. Indonesia (Sumatra). New to<br />
<strong>Thail<strong>and</strong></strong>.<br />
40. St. hantzii Reinsch var. japonicum Roy&Bisset Pl.48, f.15.<br />
Roy & Bisset 1886, Journ. Bot. 24, 240, Pl.268, f.5; Hirano 1959, Contr. 9, 380,<br />
Pl.51, f.10,11.<br />
Lspr. 26.4-35.2 ptm, Lcpr. 46-66 ptm, Bcpr. 35-64 ptm, Bspr. 20-22 ptm, <strong>and</strong> I.<br />
12.3-13 ptm. Sts. 24,27,28. Japan. New to <strong>Thail<strong>and</strong></strong>.<br />
41. St. heimerlianum Ltitkem. var. sumatranum Scott & Prescott Pl.40, f.2; Pl.49, f.16.
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