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Abstract

ABSTRACT The bryophytes in rock crevices at Khanspur were observed to be heavily VA mycorrhizal. Extramatrical vesicular infections were common comprising of simple and aggregated granulated vesicles surrounding the rhizoids and senescing leaves of mosses (Funaria hygrometrica, Polytrichum commune). Compartmented double-walled vesicles and simple vesicles were common in the thallus and rhizoids of liverworts (Marchantia palmate) while many types of vesicles occurred in the rhizoids, stem and leaves of mosses. At the approach of winter the aerial fronds of ferns and other plants in the rock crevices start senescing. The fine rhizoids of mosses and liverworts were observed penetrating the decaying aerial portions of Adiantum capillus-veneris L., making them heavily VA mycorrhizal. Vesicular and arbuscular infections were observed in thestem and fronds of Adiantum.