Add to ORKGI have the pleasure of reporting the following list of Ferns, with accompanying specimens, as observed by Miss E. W. Cathcart, of St. Paul. There are 30 species and 3 varieties
A catalog of the types of ferns that can be found in the Camp Wigwam region in southwestern Maine. C...
This is a study of some ferns and fern allies of Ozaukee County, Wisconsin. A general discussion of ...
The analysis of the introduction perspectivity of 18 new for the higher spore bearing plants collect...
In collecting ferns and fern allies in Brown County, Minnesota, during the 1964 summer, six of the s...
The following ferns have been noted or collected by me in Muscatine County. They are included in thi...
The writer believes that for every floristic district of the State there should be a simple and conv...
Perhaps no other group of plants attracts more interest among both professional and amateur botanist...
The work contains 304 plates, representing 522 species. For the complementary volume, see his 'Synop...
This paper lists with certain remarks on habitat and geographical distribution, the species of Filic...
The writer spent the months of June and July, 1895, in this portion of Iowa, camping and traveling a...
A pamphlet prepared by E. C. Ogden for use in plant taxonomy, June, 1943. The 5-page list includes ...
Ferns have been objects of interest to botanists and cultivators; they have therefore been studied m...
The following key is aimed at enabling students to determine the species and varieties of pteridophy...
An annotated list and county-by-county distribution maps are presented for the 32 species of ferns a...
Two hybrid wood ferns (Dryopteris X bootii {Tuckerm.} Underw. and Dryopteris X uliginosa {A. Br.} De...
A catalog of the types of ferns that can be found in the Camp Wigwam region in southwestern Maine. C...
This is a study of some ferns and fern allies of Ozaukee County, Wisconsin. A general discussion of ...
The analysis of the introduction perspectivity of 18 new for the higher spore bearing plants collect...
In collecting ferns and fern allies in Brown County, Minnesota, during the 1964 summer, six of the s...
The following ferns have been noted or collected by me in Muscatine County. They are included in thi...
The writer believes that for every floristic district of the State there should be a simple and conv...
Perhaps no other group of plants attracts more interest among both professional and amateur botanist...
The work contains 304 plates, representing 522 species. For the complementary volume, see his 'Synop...
This paper lists with certain remarks on habitat and geographical distribution, the species of Filic...
The writer spent the months of June and July, 1895, in this portion of Iowa, camping and traveling a...
A pamphlet prepared by E. C. Ogden for use in plant taxonomy, June, 1943. The 5-page list includes ...
Ferns have been objects of interest to botanists and cultivators; they have therefore been studied m...
The following key is aimed at enabling students to determine the species and varieties of pteridophy...
An annotated list and county-by-county distribution maps are presented for the 32 species of ferns a...
Two hybrid wood ferns (Dryopteris X bootii {Tuckerm.} Underw. and Dryopteris X uliginosa {A. Br.} De...
A catalog of the types of ferns that can be found in the Camp Wigwam region in southwestern Maine. C...
This is a study of some ferns and fern allies of Ozaukee County, Wisconsin. A general discussion of ...
The analysis of the introduction perspectivity of 18 new for the higher spore bearing plants collect...