Lang, N.J. 1963a. Electron microscopy of the Volvocaceae and Astrephomenaceae. Am. J. Bot. 50:280-300. Lang, N.J. 1963b. Electron-microscopic demonstration of plastids in Polytoma. J. Protozool. 10:333-9. Lang, N.J. 1977. Starria zimbabwieënsis (Cyanophyceae) gen. nov. et sp. nov.: a filament triradiate in transverse section. J. Phycol. 13:288-96. Lazaroff, N. 1973. Photomorphogenesis and nostocacean development. In Carr, N.G. & Whitton, B.A. [Eds.] Biology of the Blue-green Algae. Blackwell Scientific Publications, Oxford, pp. 279-319. Lazaroff, N. & Vishniac, W. 1962. The participation of filament anastomosis in the developmental cycle of Nostoc muscorum, a blue-green alga. J. Gen. Microbiol. 28:203-10. Lebsky, V.K., Gonzalez-Bashan, L.E. & Bashan, Y. 2001. Ultrastructure of interaction in alginate beads between the microalga Chlorella vulgaris with its natural associative bacterium Phyllobacterium myrsinacearum and with the plant growth-promoting bacterium Azospirillum brasilense. Can. J. Microbiol. 47:1-8. Lee, K.W. & Bold, H.C. 1973. Pseudocharaciopsis texensis gen. et sp. nov., a new member of the Eustigmatophyceae. Br. Phycol. J. 8:31-7. Lee, K.W. & Bold, H.C. 1974. Phycological Studies. XII. Characium and some Characium-like algae. University of Texas Publication No. 7403, 127 pp. Lee, Y.K. & Soh, C.W. 1991. Accumulation of astaxanthin in Haematococcus lacustris (Chlorophyta). J. Phycol.27:575-7. Lee, Y.K. & Tan, H.-M. 1988. Interphylum protoplast fusion and genetic recombination of the algae Porphyridium cruentum and Dunaliella spp. J. Gen. Microbiol. 134:635-41. Lewin, J.C. 1958. The taxonomic position of Phaeodactylum tricornutum. J. Gen. Microbiol. 18:427-32. Lewin, J.C. & Lewin, R.A. 1960. Auxotrophy and heterotrophy in marine littoral diatoms. Can. J. Microbiol. 6:127-34. Lewin, J.C., Lewin, R.A. & Philpott, D.E. 1958. Observations on Phaeodactylum tricornutum. J. Gen. Microbiol.18:418-26. Lewin, R.A. 1954. Mutants of Chlamydomonas moewusii with impaired mobility. J. Gen. Microbiol. 11:358-63. Lewin, R.A. 1957. Four new species of Chlamydomonas. Can. J. Bot. 35:321-6. Lewin, R.A. 1958. The cell walls of Platymonas. J. Gen. Microbiol. 19:87-90. Lewin, R.A. 1975. A Chlamydomonas with black zygospores. Phycologia 14:71-4. Lewin, R.A. 1984. Chlamydomonas sajao nov. sp. (Chlorophyta, Volvocales). Chin. J. Oceanol. Limnol. 2:92-4. Lewitus, A.J., Caron, D.A. & Miller, K.R. 1991. Effects of light and glycerol on the organization of the photosynthetic apparatus in the facultative heterotroph Pyrenomonas salina (Cryptophyceae). J. Phycol. 27:578-87. Li, R., Debella, H.J. & Carmichael, W.W. 2001. Isolates identifiable as Arthrospira maxima and Arthrospira fusiformis(Oscillatoriales, Cyanobacteria) appear identical on the basis of a morphological study in culture and 16S rRNA gene sequences. Phycologia 40:367-71. Lightfoot, D.A., McPherson, M.J, & Wootton, J.C. 1989. Detection of a homologue to an E. coli glutamate synthetase gene in a cyanobacterium. FEMS Microbiol. Lett. 57:129-32. Lightfoot, D.A., Walters, D.E. & Wootton, J.C. 1988. Transformation of the cyanobacterium Synechococcus PCC 6301 using cloned DNA. J. Gen. Microbiol. 134:1509-14. Lin, M., Turpin, D.H. & Plaxton, W.C. 1989a. Pyruvate kinase isozymes from the green alga Selenastrum minutum. I. Purification and physical and immunological characterization. Arch. Biochem. Biophys. 269:219-27. Lin, M., Turpin, D.H. & Plaxton, W.C. 1989b. Pyruvate kinase isozymes from the green alga Selenastrum minutum. II. Kinetic and regulatory properties. Arch. Biochem. Biophys. 269:228-38. Lippert, B.E. 1967. Sexual reproduction in Closterium moniliferum and Closterium ehrenbergii. J. Phycol. 3:182-98. Loeblich, A.R. & Sherley, J.L. 1979. Observations on the theca of the motile phase of free-living and symbiotic isolates of Zooxanthella microadriatica (Freudenthal) comb. nov. J. mar. biol. Ass. U.K. 59:195-205. Loeblich, A.R., Sherley, J.L. & Schmidt, R.J. 1979. The correct position of flagellar insertion in Prorocentrum and description of Prorocentrum rhathymum new species (Pyrrophyta). J. Plankton Res. 1:113-20. Lucksch, I. 1932. Ernährungsphysiologische Untersuchungen an Chlamydomonadeen. Beih. Bot. Centralbl. 50:64-94. Ludwig, M. & Gibbs, S.P. 1989. Evidence that the nucleomorphs of Chlorarachnion reptans (Chlorarachniophyceae) are vestigial nuclei: morphology, division and DNA-DAPI fluorescence. J. Phycol. 25:385-94.