Desmids from Thailand and Malaysia

Desmids from Thailand and Malaysia 97
gracilimum W. &G.S. West 9. St. gracile Ralfs 10. St. crenulatum (Ntig.) Delp. 11. St.
polymorphum Breb. 12. St. arcuatum Nordst. var. pseudopisciforme (Eichl. & Gutw.) W. &
G.S. West f. ataskanum Croasdale 13. St. gracite Ralfs var. ornatum Krieger 14. St. ceylanicum
W. & G.S. West 15. St. gracite Ralfs var. nanum Wil]e 16. St. apiculatum Breb.
17. St, pterosporum Lund. 18. St. punctutatum Br6b. var. eltipticum Lewin 19. St. apiculatumBr6b.
20. St. senarium(Ehrenb.)Ralfs
Plate 41
1. Staurastrum sattans Joshua var. sumatranum Scott & Prescott 2. St. duacense W. &
G.S. West 3. St. pseudosebaldi Wolle var. simplicius West 4. St, asterias Nygaard 5. St,
xanthium Krieger 6. St, sonthalianum Turner 7. St. thienemanii Krieger var. triradiatum
Scott & Prescott 8. St. excavatum W. & G.S. West 9. St. cotumbetoides W. & G.S. West
10. St. bigibbum Skuja 11, St. sebaldi Reinsch var. ventriverrucosum Scott & Prescott 12.
St. gracile Ralfs var. ornatum Krieger 13. St. gracile Ralfs f. kriegeri Scott & prescott
Plate 42
1,2. Staurastrum zonatum B6rges, var. maJ'eLs Scott & Prescott 3,4. St. pinnatum Turner
5,6. St. pinnatum Turner var. subpinnatum (Schm.) West f. robustum Krieger 7,8. St.
tohopekaligense Wolle var. insigne W. & G.S. West 9. St. hexacerum (Ehrenb.) Wittr. f. pentagona
Krieger 10. St. acanthocephalum Skuja 11. St. crenulatum (Ntig.) Delp. 12. St.
pinnatum Turner var. hydea Krieger 13. St. cyclofurcatum Scott & GrOnblad
Plate 43
1,2. Staurastrum acanthastrum W. & G.S. West 3,11. St. sexangulare Lund. var. subglabrum
W. & G.S. West 4. St. sexangulare Lund. var. productum Nordst. 5,6. St. cerastes
Lund. var. coronlatum Krieger 7,8. St. gracile Ralfs 9,10. St. gracite Ralfs var. coronulatum
Boldt 12,13. St. zonatum BOrges. var. ceytanicum W. & G.S. West 14,15. St. cyclofurcatum
Scott & Gr6nblad
Plate 44
1. Staurastrum limneticum Schmidle var. burmense W. & G.S. West 2,3. St. omeari Arch.
4,5. St. subscolopacinum W. & G.S. West 6. St. pseudotetracerum (Nordst.) W. & G.S.
West 7,8. St. archerii West var. curvatum Hirano, var.•nov. 9. St. Iimneticum Schmidle
var. burmense W. & G.S. West 10, St. submanfetdtii W. & G.S. West var. elegans W. & G.S.
West 11,12. St. jovanicum (Nordst.) Turner var. apicutiferum (Turner) Krieger
Plate 45
1. Staurastrum sexangutare Lund. var. productum Nordst. 2. St. sexangulare Lund. var.
bidentatum Gutw. 3,4. St. indentatum W. & G.S. West 5,6. St. subsaltans W. & G.S. West
var. indonesianum Scott & Prescott 7. St. Ieptocladum Nordst. 8. St. sexangulare Lund.
var. bidentatum Gutw.
Plate 46
1,3. Staurastrum leptopus Krieger var. variabile Skuja 2. St. Iunatum Ralfs var. planktonicum
W. & G.S. West 4,5. St. sebatdi Reinsch var. ornatum Nordst. 6,7. St. sexangulare
Lund. var. asperum Playfair 8,9. St, submanfeldtii W. & G.S. West
Plate 47
1, Staurastrum horametrum Roy & Bisset var, orientale Scott & Prescott 2. St. margaritaceum
(Ehrenb.) Ralfs 3. St. wildemanii Gutw. 4. St. ensiferum Turner 5. St. protectum
W. & G.S. West var. rangoonense (Skuja) Scott & Prescott 6. St. muticum Breb. 7.
St. tripyrenoideum Scott & Prescott 8. St. subpygmaeum West var. subangulatum W. & G.S.
West 9,10. St. Ieptodermum Lund. 11. St. dickiei Ralfs var. circulare Turner 12. St.
orbiculare Ralfs var. depressum Roy & Bisset 13,14. St. cuspidatum Breb. var. divergens
Nordst. 15,16. St. retusum Turner var. boreate W. & G.S. West 17. St. corniculatum Lund.
var. spinigerum West 18. St. disputatum W. & G.S. West var. sinense (LUtkem.) W. & G.S.