. The plant societies of Chicago and its vicinity. Plant ecology; Botany; Botany. 38 THE PLANT SOCIETIES OF to deciduous trees. Fig. 20 shows a tamarack swamp near Miller," Ind. Not all peat bogs have a history like the above. Just as some flood plains are forested and others not, so some peat bogs grow up to shrubs and trees, while others are dominated, for a long time at Fig. 21.— Shallow, undrained swamp (peat bog) at Dune Park. In the foreground the relict of the original pond, with water lilies, then in order, encroaching zones of bulrushes- sedges, willows, and pines. The oa
. The plant societies of Chicago and its vicinity. Plant ecology; Botany; Botany. 38 THE PLANT SOCIETIES OF to deciduous trees. Fig. 20 shows a tamarack swamp near Miller," Ind. Not all peat bogs have a history like the above. Just as some flood plains are forested and others not, so some peat bogs grow up to shrubs and trees, while others are dominated, for a long time at Fig. 21.— Shallow, undrained swamp (peat bog) at Dune Park. In the foreground the relict of the original pond, with water lilies, then in order, encroaching zones of bulrushes- sedges, willows, and pines. The oaks in the b^kground are on an established dune, and are not encroaching on the swampy soil. by herbs and grasses. Fig. 21 shows a swamp of this character. Bul- rushes are seen to be encroaching upon the water lily vegetation, while back of the bulrushes, instead of Cassandra, is a zone with sedges and grasses and scattered willows. Among the species other than sedges and grasses in a plant society like this are Viola sagittata and V. lan- ceolata, Potentilla Anserina, Fragaria Virginiana (Strawberry), Par- nassia Caroliniana, Sabbatia angularis, Gentiana crinita, Gerardia pur- iurea, Castilleia coccinea (Painted cup), Aletris farinosa. Iris versicolor,. 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 Cowles, Henry Chandler, 1869-1939. Chicago, The Geographic Society of Chicago
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
