. The botanical magazine = Shokubutsugaku zasshi. Plants; Botany. 44 THE BOTAmCAL MAGAZINE. [Vol. XXV. No. 289^ are not found at other places on account of various causes which will be explained later. On the contrary, Typha angasti- folia occurs as a characteristic plant everywhere in this zone. 4. Zone of Phragmites communis Trin. This zone follows indistinctly outside the foregoing, but Typha and Zizania diminish gradually landward and at last give way to alarge pure association of Phragmites communis on the shore. When deep humus soil occurs here, it is inter- mingled with the swimming pla
. The botanical magazine = Shokubutsugaku zasshi. Plants; Botany. 44 THE BOTAmCAL MAGAZINE. [Vol. XXV. No. 289^ are not found at other places on account of various causes which will be explained later. On the contrary, Typha angasti- folia occurs as a characteristic plant everywhere in this zone. 4. Zone of Phragmites communis Trin. This zone follows indistinctly outside the foregoing, but Typha and Zizania diminish gradually landward and at last give way to alarge pure association of Phragmites communis on the shore. When deep humus soil occurs here, it is inter- mingled with the swimming plants as Limnanthenmm nym- ph oides var. japonic a, Hydrilla a si a tic a, and especially Nymphaea tetragona var. angustata. On the bank it is mixed with Salix purpurea L. and S. nipponica Fr. et Say. The three last zones of marsh plants (helopln^tes) extend from the depth of about to the shore averaging the width. Fig. Z ,ne of Phratjmites communis, associated with tl;e liixtiriaiU vegetrUion of Nymphica iefragona var. angus' 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 Tokyo Shokubutsu Gakkai; Nihon Shokubutsu Gakkai. Tokyo : Tokyo Botanical Society
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Keywords: ., bookcentury1800, booksubjectbotany, booksubjectplants, bookyear18
