Page:Parsons How to Know the Ferns 7th ed.djvu/36

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FERNS AS A HOBBY

of finding a new station for a rare fern, and thus adding an item of value to the natural history of the State, he should be stimulated to fresh zeal.

Other interesting possibilities are those of discovering a new variety and of chancing upon those forked or crested fronds which appear occasionally in many species. These unusual forms not only possess the charm of rarity and sometimes of intrinsic beauty, but they are interesting because of the light it is believed they may throw on problems of fern ancestry. To this department of fern study, the discovery and development of abnormal forms, much attention is paid in England. In Lowe's "British Ferns" I find described between thirty and forty varieties of Polypodium vulgare, while the varieties of Scolopendrium vulgare, our rare Hart's Tongue, extend into the hundreds.

The majority of ferns mature late in the summer, giving the student the advantage of several weeks or months in which to observe their growth. Many of our most interesting flowers bloom and perish before we realize that the spring is really over. There are few flower lovers who have not had the sense of being outwitted by the rush of the season. Every year I make appointments with the different plants to visit them at their flowering time, and nearly every year I miss some such appointments through failure to appreciate the short lives of these fragile blossoms.

A few of the ferns share the early habits common to so many flowers. But usually we can hope to

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