. Contributions from the Osborn Botanical Laboratory. Plants. 33^ George E. NicJiols, The general aspect of the vegetation, as just described, is xerophytic. Under favorable edaphic conditions, however, it may be much more mesophytic. In moist meadows the grass forms a denser growth and is made up largely of species such as Poa pratensis, Agrostis alba, and Anthoxanthum odoratum. Common associates of the grasses here are Euphrasia purpurea Reeks and Rhinanthus Crista-galli. The Euphrasia occupies much the same ecological position in the fields of northern Cape Breton as does Honstonia caerulea
. Contributions from the Osborn Botanical Laboratory. Plants. 33^ George E. NicJiols, The general aspect of the vegetation, as just described, is xerophytic. Under favorable edaphic conditions, however, it may be much more mesophytic. In moist meadows the grass forms a denser growth and is made up largely of species such as Poa pratensis, Agrostis alba, and Anthoxanthum odoratum. Common associates of the grasses here are Euphrasia purpurea Reeks and Rhinanthus Crista-galli. The Euphrasia occupies much the same ecological position in the fields of northern Cape Breton as does Honstonia caerulea in those of southern New. Figure 34.—Abandoned field with white spruce and Dicksonia; Bar- rasois. England. Any of the perennial herbs referred to above may grow in moist meadows, but here, in addition, pronounced meso- phytes, such as the orchids, Habenaria clavellata, H. lacera, and H. psycodes, are also frequent. Whenever a field is permitted to run wild, Dicksonia piincti- lohula (Fig. 34), Pteris aquilina, Anaphalis margaritacea, and other herbaceous perennials which grazing or haying have held in check tend to assert themselves, while various shrubs may also become conspicuous. Among the latter, Jiiniperus communis depressa, Rubus idaeus canadensis and Vaccinimn pennsyl-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Osborn Botanical Laboratory. [New Haven?] Osborn Botanical Laboratory, Yale University
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Keywords: ., bookcollectionbiodiversity, bookcollectionnyb, booksubjectplants
