Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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<strong>Desmids</strong> <strong>from</strong> <strong>Thail<strong>and</strong></strong> <strong>and</strong> <strong>Malaysia</strong> 43<br />
West 1908, 3, 250, Pl.89, f.6; Prescott et al. 2:3, 290, Pl.273, f.7.<br />
L. 25.5 ptm, B. 24.6 ym, I. 11-13 xtm. Sts. 11,47. Europe. New to <strong>Malaysia</strong> <strong>and</strong><br />
<strong>Thail<strong>and</strong></strong>.<br />
Cspinuliferum W.&G.S.West PL20, f.11.<br />
West 1902, Trans. Linn. Soc. Bot. 6, 173, Pl.21, f.12,13; Scott & Prescott 1961, Hyd-<br />
robiol. 17, 69, Pl.29, f.6,7; Prescott et all.1981, 2:3, 292, Pl.261, f.1.<br />
L. 35 "m, B. 33 ptm, I. 10 ptm. Cells moderate in size, deeply constricted, sinus nar-<br />
rowly linear; semicells trapeziform, lateral margin convex <strong>and</strong> convergent upward, apex<br />
straight, apical angles broadly rounded; cell wall with a series of marginal granules <strong>and</strong> 2<br />
or 3 series of granules within the margin, about 3 series of a pair of large granules in the<br />
centre of a semicell, with a horizontal series of small granules just above the isthmus. St.<br />
23. Ceylon, U.S.A., Africa. New to <strong>Thail<strong>and</strong></strong>.<br />
C. stigmosum (Nordst.) Krieger Pl.17, f.32.<br />
Krieger 1932, Arch. Hydrobiol. Suppl. 11, 186, Pl.10, f.19; Krieger & Gerloff 1965,<br />
Gatt. Cosm. 2, 169, Pl.35, f.1.<br />
L. 24-39 ptm, B. 20-33 ptm, <strong>and</strong> I. 6.5-11 "m. Cells of medium size, deeply con-<br />
stricted, sinus narrowly linear; semicells trapeziform or truncate-pyramidate, apex flat-<br />
tened, lateral margins converging upward, basal <strong>and</strong> apical angles rounded. Sts.<br />
32,44,47. Indonesia (Sumatra, Java), Japan. New to <strong>Thail<strong>and</strong></strong>.<br />
C. striolatum Ntig. var. nordstedtii (M6bius) Krieger Pl.20, f.1.<br />
Krieger 1932, Arch. Hydrobiol. Suppl. 11, 186, Pl.12, f.2.<br />
L. 123-139 um, B. 84-88 ptm, <strong>and</strong> I. 57-82 ptm. Sts. 1,26,36,39,41,47,49. Indonesia<br />
(Borneo, Sumatra). New to <strong>Thail<strong>and</strong></strong>.<br />
C. subauriculatum W. & G.S. West var. truncatum W. & G.S.West Pl.16, f.5.<br />
Scott & Prescott 1961, Hydrobiol. 17, 70, Pl.26, f.5.<br />
L. 44-46 xtm, B. 44-52.5 ptm, <strong>and</strong> I. 17.5-22 ptm Sts. 16,21,49,53. Indonesia<br />
(Sumatra, Borneo). New to <strong>Thail<strong>and</strong></strong>.<br />
C. subcostatum Nordst. var. minus (W. & G.S.West) F6rster Pl.20, f.15.<br />
Fdrster 1982, 272, Pl.37, f.5.<br />
L. 23-26.4 ptm, B. 19-24 ptm, <strong>and</strong> I. 6.5-7 ptm. Semicells rounded trapeziform,<br />
lateral margin convex-crenate, upper two crenations larger than those the lower which<br />
become undulations, apex with 4-undulations <strong>and</strong> truncate; side view of a semicell circu-<br />
lar <strong>and</strong> with papillar projections. Sts. 2,13,18,25,26. Indonesia (Java), Africa. New to<br />
<strong>Thail<strong>and</strong></strong>.<br />
C. subcrenatum Hantsch. Pl.2e, f.13.<br />
West 1908, 3, 228, Pl.86, f.10-14; F6rster 1982, 272, Pl.36, f.12.<br />
L. 31-44 ptm, B. 26.5-42 ptm, <strong>and</strong> I. 10 ptm. Sts. 13,16. Cosmopolitan.<br />
C. subcucumis Schmidle Pl.16, f.7,21.<br />
West 1905, 2, 155, Pl.60, f.1-3; Krieger & Gerloff 1969, Gatt. Cosm. 3-4, 284,
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