. Contributions from the Osborn Botanical Laboratory. Plants. 306 Gcoi'i^^c I'.. iXicliols. bird chcM-ry {Pruiiiis pi'iuisylz'anica), etc. In the course of time a closed coniferous forest may be developed, and, under favorable conditions, this may be superseded eventually by a forest of the regional climax type. One of the commonest types of talus in northern Cape Breton is shown in Fig. 16. The rock fragments are relatively small and the rock mass is nuich less stable than the large-bouldered talus, though more so than the gravel slide. The common. l-'iGUKE lO.— Pioneer association oi wiiilo
. Contributions from the Osborn Botanical Laboratory. Plants. 306 Gcoi'i^^c I'.. iXicliols. bird chcM-ry {Pruiiiis pi'iuisylz'anica), etc. In the course of time a closed coniferous forest may be developed, and, under favorable conditions, this may be superseded eventually by a forest of the regional climax type. One of the commonest types of talus in northern Cape Breton is shown in Fig. 16. The rock fragments are relatively small and the rock mass is nuich less stable than the large-bouldered talus, though more so than the gravel slide. The common. l-'iGUKE lO.— Pioneer association oi wiiilo spruce, etc., on i;ranitic talus; Barrasois. pioneers here are the white spruce, the tas])berry. Picksoiiia, and Anaplwlis. 2. The Formation-types of Uplands along Streams O. INTRODUCTORY In a general way, two topographic features arc intimately associated with streams: valleys and flood plains. In northern Cape Breton the valleys range from deep, narrow ravines and j[^orges in which the stream occupies entirely the narrow floor, on. 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
