Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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Type: Pl.51, f.15,16. Loc. Phuket Isl<strong>and</strong>, <strong>Thail<strong>and</strong></strong>.<br />
Desmicts <strong>from</strong> <strong>Thail<strong>and</strong></strong> <strong>and</strong> <strong>Malaysia</strong> 79<br />
Cells of medium size, slightly broader than the length, deeply constricted, sinus acute-<br />
ly open; semicells obtriangular, apex straight or slightly concave, angles somewhat pro-<br />
duced <strong>and</strong> broadly rounded, lateral margin slightly convex; cell wall punctated, puncta-<br />
tions formed cover around the base of process, but apical part smooth; semicells in a<br />
vertical view triangular, side view deeply concave, angles truncate <strong>and</strong> rounded. L.<br />
39.6 ptm, B. 44 ptm <strong>and</strong> I. 13.2 "m. St. 19. <strong>Thail<strong>and</strong></strong>. This species resembles to St.<br />
pachyrhynchum but it is separated <strong>from</strong> the latter in having non-thickened angles, punc-<br />
tated cell wall <strong>and</strong> a smooth shape in the apical part.<br />
64. St. perundulatum Grdnblad Pl.48, f.6.<br />
Gr6nblad 1920, Acta Soc. pro Fauna Flora Fenn. 47:4, 73, Pl.3, f.68,69; Scott & Pre-<br />
scott 1961, 101, Pl.52, f.9 (forma).<br />
Lspr. 11.8 xtm, Lcpr. 28.6 ptm, Bcpr. 31 ptm, <strong>and</strong> I. 5.3 ptm. St. 31. Indonesia<br />
(Sumatra, Bali). New to <strong>Thail<strong>and</strong></strong>.<br />
65. St.piteolatumBreb.<br />
West 1911, 4, 127, Pl.118, f.11-13; Hirano 1059, Contr. 9, 284, Pl.37, f.5.<br />
L. 26.4 ptm, B. 13.2 um, <strong>and</strong> I. 10 #m. St. 40. Japan, Europe, Brazil. New to Thai-<br />
l<strong>and</strong>.<br />
66. St. pinnatum Turner var. fZoridense Scott & Gr6nblad<br />
Scott & Gr6nblad 1957, Act. Soc. Sci. Fenn. II, B:2, 44, Pl.25, f.13-17.<br />
L. 37.4 ptm, B. 46.2 Ltm, <strong>and</strong> I. 11 ptm. St. 20. U.S.A. New to <strong>Thail<strong>and</strong></strong>.<br />
66a. var. hydea Krieger Pl.42, f.12.<br />
Krieger 1932, 204, Pl.16, f.8.<br />
L. 24.2 um, B. 28.6 ym, <strong>and</strong> I. 8.8 ptm. St. 43. Indonesia (Java). New to <strong>Thail<strong>and</strong></strong>.<br />
66b. var. subpinnatum (Schm.) W. & G.S.West f. robustum Krieger Pl.42, f.5,6.<br />
Krieger 1932, 205, Pl.16, f.7; Scott & Prescott 1961, 101, Pl.46, f.9,10.<br />
L. 35-44 ym, B. 44-53 pm, <strong>and</strong> I. 10-13 ptm. Sts. 23,25,43,51. Indonesia (Java,<br />
Sumatra, Bali). New to <strong>Thail<strong>and</strong></strong>.<br />
67. St.polymorphumBreb. Pl.40,f.11.<br />
West & Carter 1923. 5, 125, Pl: 142, f.24, Pl.143, f.1-3; Scott & Prescott 1961, 102,<br />
Pl.59, f.14 (forma); Prescott et al. 1982, 2:4, 282, Pl.401, f.l,8,9.<br />
L. 22.5 ptm, B. 25-33 xtm, <strong>and</strong> I. 6.5-8 #m. Sts. 26,30,36,41. Indonesia (Borneo,<br />
Sumatra), Europe. Cosmopolitan.<br />
68. St. praenii W. &G.S.West yar. majus Hirano, var. nov. Pl.39 f.9.<br />
Var. major; semicellulae a fronte visae late ellipticae, angulis lateralibus late rotunda-<br />
tis et spinis conicis praeditis; a vertice visae polis late rotundatis, cum spinis conicis<br />
praeditis, lateribus paullo concavis, Long. 127.6 ptm, lat. 105.6 ptm, lat. isthm. 39.6 ptm.<br />
St. 47.<br />
Type: Pl.39, f.9. Loc. Non Boa Saket, <strong>Thail<strong>and</strong></strong>.
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