Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
Desmids from Thailand and Malaysia
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14 M. HIRANO<br />
36c. var. subdirectum (W.West) Krieger Pl.3, f.3.<br />
Krieger 1935, 340, Pl.28, f.10.<br />
L 211-220 ptm, B. 21-22 "m. St. 31. U.S.A. New to <strong>Thail<strong>and</strong></strong>.<br />
37. Cl. subscoticum Gutw. Pl.4, f.2.<br />
Krieger 1932, 333, Pl.27, f.10-12.<br />
L. 150 ptm, B. 23 ptm. Cells slightly curved, slightly attenuated toward the end,<br />
approximately 6-7 times longer than the breadth, apex truncately convex; cell wall<br />
puncto-striated, striae 3 in 10 vm. St. 36. Indonesia (Java), Europe. New to <strong>Thail<strong>and</strong></strong>.<br />
38. CL toxon West<br />
West 1904, 160, Pl.20, f.13,14; Krieger 1935, 310, Pl.23, f.4,5; Fbrster 1982, 106, Pl.5,<br />
f.5,6.<br />
L. 167 ptm, B. 8-9 ptm. St. 1. Europe, N. & S.America. New to <strong>Thail<strong>and</strong></strong>.<br />
39. Cl. tumidum Johnson<br />
West 1904, 156, Pl.19, f.15-18; Krieger 1935, 267, Pl.14, f.10,11; FOrster 1982, 107,<br />
Pl.10, f.8.<br />
L. 121 gm, B. 13 ptm. St. 18. <strong>Thail<strong>and</strong></strong>, Japan, Europe, N. & S.America, Africa.<br />
40. Cl. ulna Focke PL3, f.8; PL4, f.1,3,9.<br />
West 1904, 127, Pl.14, f.7-9; Krieger 1935, 341, Pl.29, f.1-4.<br />
L. 335-506 ptm, B. 20-22 Itm. Sts. 20,26,29,35,36,39,41,49. India, Ceylon, Europe,<br />
U.S.A., Australia. New to <strong>Thail<strong>and</strong></strong>.<br />
41. Cl. venus Ktitz. var. venus Pl.2, f.2.<br />
West 1904, 137, Pl.15, f.15-20; Krieger 1935, 272, Pl.16, f.1-5; F6rster 1982, 110,<br />
PL8, f.10, 13-14.<br />
L. 48-57 um, B. 8.5-9 ptm. Sts. 25,33,52. Cosmopolitan.<br />
41a. var. incurvum (Breb.) Krieger<br />
Krieger 1935, 273, Pl.16, f.6,7.<br />
L. 61-63 ptm, B. 13 ptm. St. 10. Cosmopolitan.<br />
1. Pleurotaenium annuloldes Hirano, sp. nov. Pl.9, f.4.<br />
Cellulae mediocres, circiter 12-plo longiores quam latae; semicellulae cum infratione<br />
basali, gradatim attenuatae ad apicem, apice truncato cum tuberculis rotundis 6-7 visi-<br />
bilibus, marginibus lateralibus paullo undulatis; membrana scrobiculato-punctata, cum<br />
annulo 13- 14 evidento, annulis multis scrobiculatis composito, inter scrobiculos punctu-<br />
lis sparse distributis. Long. 290 um, lat. 28.6 ptm, apic. 17.6 ptm. St. 12.<br />
Type: Pl.9, f.4. Loc. West of Ranong, <strong>Thail<strong>and</strong></strong>.<br />
Cells medium sized, approximately 12 times longer than the breadth; semicells with a<br />
slight inflation at the base, gradually attenuated toward the apex, which is truncated <strong>and</strong><br />
with a ring of rounded tubercules 6-7 visibles, lateral margin slightly undulate, irregu-<br />
larly grouped <strong>and</strong> confined at the undulations, other parts coarsely punctated. L. 290<br />
ptm, B. 28.6 ptm, apex 17.6 "m. St. 12.
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