. Introduction to cryptogamic botany. Cryptogams. 548 INTRODUCTION TO CEYPTOGAMIC BOTANY. are reducible with certainty to 0. vulgatum, which is dis- tributed through almost every part of the globe. In some cases several spikes are produced instead of one. Sometimes, however, the firond is dichotomous, as in a species from Malacca in the Hookerian Herbarium, indications of division having previously occurred in 0. pendulum, and sometimes it is digitate, as in 0. ijalrinatum, a species from Bourbon and South America, which has been considered a genus under the name of Cheiroglossum. It has, howe
. Introduction to cryptogamic botany. Cryptogams. 548 INTRODUCTION TO CEYPTOGAMIC BOTANY. are reducible with certainty to 0. vulgatum, which is dis- tributed through almost every part of the globe. In some cases several spikes are produced instead of one. Sometimes, however, the firond is dichotomous, as in a species from Malacca in the Hookerian Herbarium, indications of division having previously occurred in 0. pendulum, and sometimes it is digitate, as in 0. ijalrinatum, a species from Bourbon and South America, which has been considered a genus under the name of Cheiroglossum. It has, however, no more right to be separated than Schizcea dichotoma from S. Jlabellum. This species is remarkable for numerous marginal spikes of. Fig 118. PhyUoglossum Drummondii, natural size, together -with one of the bractes, with its sporangium magnified. From a New Zealand specimen given to me by Dr. Hooker. sporangia arising from some of the transformed lobes, for its stem sometimes assuming at the base the scarlet tint which occurs in Lycopods, for its fernlike rhizoma, and its grow- ing on the trunks of trees. Botrychium has divided fronds, and the fruit, consisting of globose sporangia, opening trans- versely, is produced on spikes springing from the base of the frond, or occasionally at the same time on some of the pinnules. B. Lunavia is found in Tasmania, and the New Zealand species is a native of Virginia and of many other countries, but of no part of Europe except Norway, from. 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 Berkeley, M. J. (Miles Joseph), 1803-1889. London, New York, H. Bailliere; [etc. ,etc]
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