Page:Parsons How to Know the Ferns 7th ed.djvu/107

 , but the withered fertile portion may be found upon the plant much later in the year. Its frequent companions are the Spinulose Shield Fern, the Christmas Fern, the Silvery Spleenwort, and the Maidenhair.



Of late some doubt has existed as to whether B. ternatum has been actually found in this country, although the standard Floras give no evidence of this uncertainty. Dr. Underwood is convinced that the true B. ternatum is found only in Japan and China, and that our species is really B. dissectum, a species, not a variety. He says that this species is very common in the vicinity of New York City, and thence southward and westward; that it is also found in various parts of New England; that it reaches its fullest development in moist,