论文信息 - THE CYTOLOGY AND DISTRIBUTION OF DRYOPTERIS SPECIES IN ONTARIO

THE CYTOLOGY AND DISTRIBUTION OF DRYOPTERIS SPECIES IN ONTARIO

The cytology and distribution, together with some morphological notes and a key, are given for nine species of Dryopteris (wood ferns) in Ontario. The cytological determinations were made on 239 plants of nine species, considered as five diploid species (x = 41) (D. marginalis, D. fragrans, D. goldiana, D. dilatata, and D. intermedia), three tetraploids (n = 82) (D. spinulosa, D. cristata, and D. filix-mas), and one hexaploid (n = 123) (D. clintoniana).

D. Britton | J. H. Soper

[1] J. H. Soper. Ferns of Manitoulin Island, Ontario' , 1963 .

[2] S. Walker. FURTHER STUDIES IN THE GENUS DRYOPTERIS: THE ORIGIN OF D. CLINTONIANA, D. CELSA AND RELATED TAXA , 1962 .

[3] E. T. Wherry,et al. The Fern Guide , 1961 .

[4] S. Walker. CYTOGENETIC STUDIES IN THE DRYOPTERIS SPINULOSA COMPLEX. II. , 1961 .

[5] D. Britton. The Problems of Variation in North American Dryopteris , 1961 .

[6] F. W. Crane. A Key to American Dryopteris Species Based on Characters of the Perispore , 1960 .

[7] W. H. Wagner. Cytotaxonomic observations on North American ferns , 1955 .

[8] D. Britton. CHROMOSOME STUDIES ON FERNS , 1953 .

[9] I. Manton,et al. Cytology of the Dryopteris spinulosa Complex in Eastern North America , 1953, Nature.

[10] H. A. Gleason,et al. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada, Volume 2. , 1952 .

[11] Merritt Lyndon Fernald,et al. Gray's Manual of Botany. , 1951 .