Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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46 M. HIRANO<br />
131a. var. depressum W.&G.S.West Pl.15, f.18.<br />
Krieger & Gerloff 1969, Gatt. Cosm. 3-4, 320, Pl.50, f.4.<br />
L. 24 ptm, B. 24 Itm, <strong>and</strong> I. 4-6.5 pt m. St. 23. Ceylon, Japan, Africa.<br />
132. C. tiibonogense Gutw. formaminus G.S.West Pl.16, f.11.<br />
Scott & Prescott 1961, Hydrobiol. 17, 72, Pl.27, f.8.<br />
L. 32-39.6 ptm, B. 18-20 pm, <strong>and</strong> I. 4.5-6.5 ptm. Cells deeply constricted, sinus<br />
widely open <strong>and</strong> rounded at the extremity, isthmus somewhat elongated; semicells<br />
reniform-hexagonal, apical angles well rounded, lower lateral margin slightly longer than<br />
the upper, apex slightly flattened. Sts. 25,30,47,51. Indonesia (Sumatra). New to Thai-<br />
l<strong>and</strong>.<br />
133. C. torquetum (Turner) Hirano, comb. nov. Pl.21, f.7.<br />
Xanthidium torquatum Turner 1892, K.Sv.Vet.Akad.H<strong>and</strong>l. 25, 102, Pl.22, f.8.<br />
L. 48.5-54 ptm, B. 48.5 ptm, <strong>and</strong> I. 11-13 um. Sts. 1,19,23,36,38,40. India. New to<br />
<strong>Thail<strong>and</strong></strong>.<br />
134. C trachypleurum Lund. var. norctstedtii Gutw. Pl.20, f.9.<br />
Krieger 1932, Arch. Hydrobiol. Suppl. 11, 188, Pl.11, f.11.<br />
L. 24 um, B. 20.6 ptm, <strong>and</strong> I. 6.2 xtm. The specimens examined are slightly smaller<br />
than the form described by Krieger. Semicells trapeziform, apex truncate <strong>and</strong> straight,<br />
furnished with granules in an irregular disposition. St. 53. Indonesia (Java, Sumatra).<br />
New to <strong>Thail<strong>and</strong></strong>.<br />
135. C. transitorum (Heimerl) Ducell.<br />
Prescott et al. 1981, 2:3, 331, Pl.163, f.1-3.<br />
L. 61.6 ptm, B. 44 ptm, I. 15 ptm. St. 2. Europe, U.S.A., Australia. New to <strong>Thail<strong>and</strong></strong>.<br />
136. C. trilobulatum Reinsch Pl.16, f.15.<br />
Prescott et al. 1981, 2:3, 331, Pl.183, f.11- 13, Pl.221, f.8.<br />
L. 17.6 xim, B. 12.3-13.2 xtm, I. 4.4 Itm. Sts. 30,32, Cosmopolitan. New to Thai-<br />
l<strong>and</strong>.<br />
137. C. tumidum Lund. var. tumidum Pl.17, f.9.<br />
West 1905, 2, 160, Pl.60, f.18; FOrster 1982, 287, Pl.21, f.6.<br />
L. 22-27.3 ptm, B. 17.6-22 xtm, I. 4.5-6.5 um. Sts. 1,49. Cosmopolitan. New to<br />
<strong>Thail<strong>and</strong></strong>.<br />
137a. var. subtile Kirchn.<br />
Prescott et aL 1981, 2:3, 337, Pl.172, f.7-9. PL16, f.26.<br />
L. 30.8 ptm, B. 19 ptm, I. 5.3 ptm. St. 32. Europe, U.S.A. New to <strong>Thail<strong>and</strong></strong>.<br />
138. C. undulatum Corda var. minutum Wittr. Pl.15, f.10; Pl.17, f.29; Pl.34, f.8.<br />
Prescott et al. 1981, 2:3, 341, Pl.167, f.7-9.<br />
L. 33 ptm, B. 25 ptm, I. 8 um. Sts. 10,34,36. China, Europe, S.America, Africa.<br />
139. CurceumW.&G.S.West PL17,f.5.
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