REFERENCES
- Bold H.C. & Wynne M.J. 1985. Introduction to the algae. Prentice Hall, Inc., Englewood Cliffs, New Jersey. 720 pp.
- Cáceres E.J. 1978. Contribución al conocimiento de los carófitos del Centro de la República Argentina. Boletín de la Academia Nacional de Ciencias de Córdoba, Argentina 52, (3–4), 315–372.
- Cáceres E.J., Gardey C. & Fernández O. 1990. Novedades carológicas argentinas. IV. Sinopsis de Chara contraria en la República Argentina. Boletín de la Sociedad Argentina de Botánica 27, (1–2), 37–42.
- Cocucci A.E. & Cáceres E.J. 1976. The ultrastructure of the male gametogenesis in Chara contraria var. nitelloides (Charophyta). Phytomorphology 30: 5–16.
- Cook M.E., Graham L.E., Botha C.E.J. & Lavin C.A. 1997. Comparative ultrastructure of plasmodesmata of Chara and selected Bryophytes: toward an elucidation of the evolutionary origin of plant plasmodesmata. American Journal of Botany 84: 1169–1178.
- Cook M.E., Graham L.E. & Lavin C.A. 1998. Cytokinesis and nodal anatomy in the charophycean green alga Chara zeylanica. Protoplasma 203: 65–74.
- Duckett J.D., Carothers Z.B. & Miller C.C.J. 1983. Gametogenesis. In: Manual of bryology (Ed. by R.M. Schuster), pp. 232–275. Hattori Botany Laboratory of Nichinan, Japan.
- Duncan T.M., Renzaglia K.S. & Garbary D.J. 1997. Ultrastructure and phylogeny of the spermatozoid of Chara vulgaris (Charophyceae). Plant Systematics and Evolution 204: 125–140.
- Graham L.E. & Wilkox L.W. 2000. Algae. Prentice Hall, Upper saddle River, New Jersey. 640 pp.
- Groves J. & Bullock-Webster G.R. 1920. The British Charophyta. I. Nitellae. Royal Society London. 141 pp.
- Groves J. & Bullock-Webster G.R. 1924. The British Charophyta. II. Chareae. Royal Society London, 203 pp.
- Guerlesquin M. 1981. Contribution a la connaisance des Characeés d'Amerique du Sud (Bolivie, Equateur, Guyane Française). Revue d'Hydrobiologie Tropicale 14: 381–404.
- Kreitner G.L. 1977. Transformation of the nucleus in Marchantia spermatids: morphogenesis. American Journal of Botany 64: 464–475.
- Kwiatkowska M. & Maszewski J. 1976. Plasmodesmata between synchronously and asynchronously developing cells of the antheridial filaments of Chara vulgaris L. Protoplasma 87: 317–327.
- Kwiatkowska M. & Maszewski J. 1978. Ultrastructure of the nuclei during different phases of the cell cycle in antheridial filaments of Chara vulgaris. Protoplasma 96: 59–74.
- Kwiatkowska M. & Maszewski J. 1985. Changes in ultrastructure of plasmodesmata during spermatogenesis in Chara vulgaris L. Planta (Berlin) 166: 46–50.
- Kwiatkowska M. & Maszewski J. 1986. Changes in the occurrence and ultrastructure of plasmodesmata in antheridia of Chara vulgaris L., during different stages of spermatogenesis. Protoplasma 132: 179–188.
- Moestrup Ø. 1970. The fine structure of mature spermatozoids of Chara corallina, with special reference to microtubules and scales. Planta (Berlin) 93: 295–308.
- Pickett-Heaps J.D. 1968a. Ultrastructure and differentiation in Chara (fibrosa) III. Formation of the antheridium. Australian Journal of Biological Science 21: 255–274.
- Pickett-Heaps J.D. 1968b. Ultrastructure and differentiation in Chara (fibrosa) IV. Spermatogenesis. Australian Journal of Biological Science 21: 655–690.
- Pickett-Heaps J. 1975. Green algae: structure, reproduction and evolution in selected genera. sinauer Associates, Sunderland, Inc., Publishers, Masssachusetts. 606 pp.
- Reymond O.L. & Pickett-Heaps J.D. 1983. A routine flat embedding method for electron microscopy of microorganisms allowing selection and precisely orientated sectioning of single cells by light microscopy. Journal of Microscopy 130: 79–84.
- Robert D. 1979. Localization cytochimique en microscopie électronique, des constituents nucléaires au cours de la spermiogéne chez le Chara. Annales des sciences naturelles Botanique (Sér. 13)1: 67–80.
- Spurr A.M. 1969. A low-viscosity epoxy embedding medium for electron microscopy. Journal of Ultrastructural Research 26: 31–43.
- Turner F.R. 1968. An ultrastructural study of plant spermatogenesis. Journal of Cell Biology 37: 370–393.
- van den Hoek C., Mann D.G. & Jahns H.M. 1995. Algae: an introduction to phycology. Cambridge University Press, Cambridge, UK. 623 pp.
- Vouilloud A.A. 2008. Citología de Charales (Charophyta) de Argentina con especial referencia a su ultraestructura. Universidad Nacional del Sur, Bahía Blanca, Argentina. 147 pp.
- Vouilloud A.A., Cáceres E.J. & Leonardi P.I. 2005. Changes in the absolute configuration of the basal/flagellar apparatus and evidence of centrin during male gametogenesis in Chara contraria var. nitelloides (Charales, Charophyta). Plant Systematics and Evolution 251: 89–105.
- Vouilloud A.A., Cáceres E.J. & Leonardi P.I. 2010. Ultraestructure of the mature male gamete of Nitella hyalina (Charales, Charophyta). Phycologia 49: 508–511.
- Wood R.D. & Imahori K. 1965. Monograph of the Characeae. In: A revision of the Characeae, vol. II (Ed. by R.D. Wood & K. Imahori), 904 pp. J. Cramer, Weinheim, Germany.