REFERENCES
- Brown, R. C. & Lemmon, B. E. (1980). Ultrastructure of sporogenesis in a moss, Ditrichum pallidum. III. Spore wall formation. Am. .1. Bot. 67, 918–34.
- Brown, R. C. & Lemmon, B. E. (1981). Aperture development in spores of the moss, 7'rematodon longicollis Mx. Protoplasma 106, 273–87.
- Chalaud, G. (1932). Germination des spores et phase protonemique. In: F. Verdoon (ed.), Manual of Bryology, pp. 89-108. Den Hagen.
- Clarke, G. C. S. (1979). Spore morphology and bryophyte systematics. In: G. C. S. Clarke & J. G. Duckett (eds) Bryophyte Systematics, pp. 231–50. Academic Press, London.
- Duckett, J. G. & Soni, S. L. (1972). Scanning electron microscope studies on the leaves of Hepaticae. L Ptilidiaceae, Lepidoziaceae, Calypogeiaceae, Jungermanniaceae and Marsu-pellaceae. Bryologist 75, 536–49.
- Erdtman, G. (1952). Pollen morphology and plant taxonomy. Stockholm.
- Erdtman, G. (1965). Pollen and spore morphology Gymnospermae Bryophyta. Plant taxonomy. An Introduction to Palynology, III. Stockholm.
- Erdtman, G. (1969). Handbook of Palynology. Munksgaard.
- Gambardella, R., Castaldo, R. & Ligrone, R. (1979). Presence of microbodies-like organelles in Bryophyta. Catyologia 32, 125–6.
- Gambardella, R., Ligrone, R. & Castaldo, R. (1980). Studies on Timmiella barbuloides (Brid.) Moenk. III. Ultrastructural evidence of catalase activity in the phylloid micro-bodies (peroxisomes). Cryptogamie BryoL Lichen. 1, 415–22.
- Heslop-Harrison, J. (1971). Pollen: Development and Physiology. London.
- Krupa, J. (1964). Studies on the physiology of germination of spores of Funaria hygro-metrica (Sibth.) Acta Soc. Bot. Pol. 33, 179–92.
- Ligrone, R., Castaldo, R. & Gambardella, R. (1980). Studies on Timmiella barbuloides (Brid.) Moenk. I. Historical and ultrastructural differentiation of the cauloid. Crypto-gamie BryoL Lichen. 1, 115–42.
- Ligrone, R., Gambardella, R. & Castaldo, R. (1980). Studies on Timmiella barbuloides (Brid.) Moenk. IL Ultrastructure and development of inusual spherical bodies in the differentiating cells of the cauloid. Cryptogamie BryoL Lichen. 1, 239–46.
- McClymont, J. W. & Larson, D. A. (1964). An electron microscopic study of spore wall structure in the Musci. Am. J. BoL 51, 195–200.
- Neidhart, H. V. (1979). Comparative studies of sporogenesis in bryophytes. In: G. C. S. Clarke & J. G. Duckett (eds) Bryophyte Systematics, pp. 251–80. Academic Press, London.
- Olesen, P.& Mogensen, G. S. (1978). Ultrastructure, histochemistry and notes on germin-ation stages of spores in selected mosses. Bryologist 81, 494–516.
- Proctor, M. C. F. (1979a). Structure and ecophysiological adaptation in bryophytes. In: G. C. S. Clarke & J. G. Duckett (eds) Bryophyte Systematics, pp. 479–509. Academic Press, London.
- Proctor, M. C. F. (1979b). Surface wax on the leaves of some mosses. J. BryoL 10, 531–8.
- Schönherr, J. & Ziegler, H. (1975). Hydrophobic cuticolar ledges prevent water entering the air pores of liverwort thalli. Planta 124, 51–60.
- Schulz, D. (1972). Darstellung der submilcroskopischen Strukturen lufttrockener Moos-sporen. Bar. Dt. bot. Ges. 85, 193–202.
- Sebastio, R. & Macchia, F. (1979). A light-microscope study of dry and germinating spores of Funaria hygrometrica Hedw., in dark and light conditions. Giorn. Rot. Ital. 113, 89–99.
- Valanne, N. (1966). The germination phases of moss spores and their control by light. Ann. Rot. Fenn. 3, 1–60.