Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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68 M. HIRANO<br />
Lssp. 39.6 ptm, Bcsp. 48.5 #m, <strong>and</strong> I. 5.7 ptm. St. 22. Burma, Indonesia (Borneo),<br />
Singapore. New to <strong>Thail<strong>and</strong></strong>.<br />
4. St. apiculatumBreb. Pl.40,f.16,19.<br />
West & Carter 1923, 5,6, Pl.129, f.6-8.<br />
L. 15.4-20 ptm, B. 15.4-20 um, <strong>and</strong> I. 3.5-4.5 ptm. Prescott et aL (1982) consi-<br />
dered that this species is conspecific with St. deiectum var. apiculatum (Breb.) Lund. Sts.<br />
7,19,23,25,47,51. Burma, <strong>Thail<strong>and</strong></strong>, Japan, Europe, U.S.A., Australia.<br />
5. St. archerii West var. archerii Pl.50, f.5.<br />
West 1892, Jour. Linn. Soc. Bot. 29, 183, Pl.23, f.15; West & Carter 1923, 5, 155,<br />
Pl.153, f.6,7; Prescott et al 1982, 2:4, 129, Pl.424, f.3.<br />
Lcpr. 78 gm, Bcpr. 84 ptm, <strong>and</strong> I. 24 ptm. Cells large, twice longer than the breadth<br />
without process, moderately constricted at the middle; semicells cup shaped, apex con-<br />
vex <strong>and</strong> smooth, with 9 long processes projected beyond the apex <strong>and</strong> divergent. St.<br />
25. Europe, U.S.A. New to <strong>Thail<strong>and</strong></strong>.<br />
5a. var. curvatum Hirano, var. noy. Pl.44, f.7,8.<br />
Semicellulae in vertice visae 6-radiatae, processibus paene horizontalibus vel incurva-<br />
tis, Long. 63.8 xtm, lat. 88 xtm, lat. isthm. 15.4 vttm.<br />
Type: Pl.44, f.7,8. Loc. Trang, <strong>Thail<strong>and</strong></strong>.<br />
Cells large, approximately 1.4-2 times broader than the length, median constriction<br />
shallow <strong>and</strong> retuse; semicells cup-shaped, apex straight or slightly concave, apical angles<br />
produce, many long nodulated <strong>and</strong> incurved processes, apex of a process with 3 small<br />
denticulations; semicells in a vertical view 6-radiate angles, producing long attenuated<br />
<strong>and</strong> nodulated processes, apex of semicell smooth. St. 20. The specimens <strong>from</strong> Thai-<br />
l<strong>and</strong> are somewhat smaller in size than the English form. They are separated <strong>from</strong> the<br />
typical form in number of processes. <strong>Thail<strong>and</strong></strong>.<br />
6. St. arcuatum Nordst. var. pseudopisciforme (Eichl. & Gutw.) W. & G.S.West<br />
Prescott et aL 1982, 2:4, 131, Pl.374, f.4. PL40, f.12.<br />
Lcpr. 40-70 ptm, Bcpr. 35-52 ptm, <strong>and</strong> I. 8-9 ptm. Sts. 4,7,36,39,40. N.America.<br />
New to <strong>Thail<strong>and</strong></strong>.<br />
7. St. asterias Nygaard Pl.41,f.4.<br />
Krieger 1932, 193, Pl.16, f.6; Skuja 1949, 153; Hirano 1959, 363, Pl.45, f.12.<br />
L. 30 #m, B. 44 Ltm, <strong>and</strong> 4.5 pm. St. 31. Indonesia (Java, Sumatra, Bali). New to<br />
<strong>Thail<strong>and</strong></strong>.<br />
8. St bifidum (Ehrenb.) Breb. Pl.38, f.6.<br />
West & Carter 1923, 5, 32, Pl.134, f.4; Skuja 1949, 154, Pl.33, f.18; Hirano 1959,<br />
Contr. 9, 313, Pl.40, f.2.<br />
L. 33 ptm, Bcsp. 35-44 Ltm, <strong>and</strong> I. 11-14 ptm. Sts. 18,19,21. India, Ceylon, Burma,<br />
<strong>Thail<strong>and</strong></strong>, Indonesia (Java, Sumatra), Japan, China, Europe.<br />
9. St. bigibbum Skuja Pl.41, f.10.
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