The native flowers and ferns of the United States in their botanical, horticultural and popular aspects . lgarden culture, they have been found to vary as widely fromparent types as any flowering plant. A very singular fact also,in regard to ferns, is this, that varieties with remarkably divided,cut, or crested fronds, or with fronds which would be calledfasciated, or would be looked upon as monstrosities if we weredealing with flowering plants, are reproduced from spores withalmost as much regularity as the parent type from which thevariety originally sprung. Formerly a variety was regarded a
The native flowers and ferns of the United States in their botanical, horticultural and popular aspects . lgarden culture, they have been found to vary as widely fromparent types as any flowering plant. A very singular fact also,in regard to ferns, is this, that varieties with remarkably divided,cut, or crested fronds, or with fronds which would be calledfasciated, or would be looked upon as monstrosities if we weredealing with flowering plants, are reproduced from spores withalmost as much regularity as the parent type from which thevariety originally sprung. Formerly a variety was regarded asa mere temporary affair. The test of a true species was thatlike must produce like, and the validity of a species was con-sidered as established if from seeds or spores plants could beraised which were like their parents. This is now known tobe erroneous. Varieties reproduce themselves. Explanation of the plate. — i. A complete plant. — 2. Magnified pinna, with the soriratlicr widely apart than crowded. It is well known that this character varies in allferns with the fertility. Vol. n. Plate Amaryllis Atamasco. L PBAHr. J: CCMVftNV, 130ST0K
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectwildflo, bookyear1879
