Desmids from Thailand and Malaysia

94 M. HIRANO
tumKrieg.&Gerloff 24. C. ozense Hirano 25. C. dichondrumW.&G.S.West 26. C.
binum Nordst. 27,29. C. mansangense W. & G,S. West 28. C. pseudamoenum Wille 30,
C, impressulum Elfv. 31, C, obtusatum (Schm.) Schmidle 32. C. zonatum Lund. 33. C.
crispatum Hirano 34, C. blyttiiWille f. atLstralianum Schmidle
Plate 19
1. Cosmarium askenasyi Schmidle var. Iatum Scott & Prescott 2. C quadratum Lund. 3.
C. bimamitlatum Krieger 4. C. monomazum Lund, var. dimazum Krieger 5. C scabrum
Turner 6. C. portianum Arch. var. mojus Scott & Prescott 7. C, orthostichum Lund, var.
compactum W. & G.S. West f. divaricatum Bicudo 8. C. blyttii Wille 9. C. portianum
Arch. 10. C. ceylanicum W. & G.S. West f. minus Scott & Prescott
Plate 20
1. Cosmarium striolatum Nag, var. nordstedtii ( M6bius) Krieger 2. C, botrytis Menegh.
var, paxiUisporum W. & G.S. West 3. C. quadrum Lund. var. minus Nordst. 4, C.
cuneatum Joshua 5. C decachondrum Roy & Bisset 6. C. portianum Arch, var. maius
Scott & Prescott 7. C. controversum W. West 8. C. decoratum W. & 6.S. West 9. C.
trachypleurum Lund. var. nordstedtii Gutw, 10, C. portianum Arch. var, nephroideum Wittr.
11. C. spinultiferum W. & G.S. West 12, C varsoviense Racib. var. tatum (GrOnblad) Krieger
& Gerloff 13. C. subcrenatum Hantz. 14. C vitiosum Scott & Gr6nblad var. orientale
Scott & Prescott 15. C subcostatum Nordst. var. minus (W. & G.S. West) FOrster
Plate 21
1, Euastrum tongicotle Nordst. var. capitatum W. & G.S. West 2, E. intermedium Cl. var.
rotundatum Hirano var. nov. 3. Cosmarium margaritatum (Lund.) Roy & Bisset 4. C
ordinatum (B6rgesens) W. & G.S. West var. borgei Scott & GrOnblad 5. C biretum Breb.
var. hiretum 6. C. quadrum Lund. var, sublatum (Nordst.) W. & G.S. West 7. C. torquatum
(Turner) Hirano 8. C. armatum Joshua 9. C. pseudobroomei Wille 10. C,
thailandicum Hirano sp, nov. 11. C. sumatranum Krieger var, neparense Fbrster 12. C.
speciosum Lund. var. simplex Nordst. 13. C. rentforme (Ralfs) Arch. 14. C. crenatum
Ralfs var. boldtiana (Gutw.) W. & G.S, West 15. C ceylanicum W. & G.S. West f. minus
Scott & Prescott
Plate 22
1. Tetmemor"s granulatus (Breb.) Ralfs var. attenuatus W. & G,S. West 2. T. brebissonii
(Menegh.) Ralfs var. ansatiformis Hirano var. nov, 3-5. Euastrum ansatum Ehrenb. 6. E,
ansatum Ehrenb. var. pyxidatum Delp. 7, E, ansatum Ehrenb. var. didettiforme Ducell, 8,
E. ienneri Arch. 9. E. Iuetkemuelleri Ducell. 10, E, sublobatum Breb, var. ohtusatum
(Gutw.) Krieger 11. E validum W. & G.S, West 12, E. tuetkemuelteri Ducell. 13. E.
validum W. & G,S. West var. glabrum Krieger 14, Tetmemorus laevis (KUtz.) Ralfs var. tropicus
Krieger
Plate 23
1. Euastrum ansatum Ehrenb. var. undulatum Hirano, var. nov. 2. E. sinuosum Lenorm.
var. scrobicutatum Nordst. 3. E, denticulatum (Kirchn,) Gay 4,5. E. boldtii Schmidle 6.
E. irregulare Maskell 7,8. E. obesum Joshua 9. E, pseudocoratloides Fritsch 10. E. sublobatum
Breb. var, iavanicum (Bernard) Krieger 11. E. indicum Krieger var. capitatum Krieger
12. E, obesum Joshua 13. E. subtobatum Breb. var. iavanicum (Bernard) Krieger 14.
E. bipartitum Krieger 15,16. E. sinuosum Lenorm var. dideltoides Krieger 17,18. E.
sinuosum Lenorm. var. reductum W, & G.S. West 19. E. sinuosum Lenorm. var. perforatum
Krieger 20. E. sinuosum Lenorm. var, aboense (Elfv.) Cedergren 21. E didelta Delp. var.
bengalicum Lagerheim
Plate M
1. Micrasterias moebii (Borge) W. & G.S. West 2. M. moebii (Borge) W, & G.S. West
var. burmense W, & G.S. West 3. Euastrum horikawae Hinode 4. E. jenneri Arch. 5,