Add to ORKGA pamphlet prepared by E. C. Ogden for use in plant taxonomy, June, 1943. The 5-page list includes the species of ferns, clubmosses, horsetails, and quillworts which had been collected in Penobscot County, Maine
A study of the ferns in East Central Illinois was conducted between the spring of 1976 and the sprin...
Cover title.The genus Isoetes in New England. By A. A. Eaton.--The system of ferns proposed in Die n...
Fifty-two annotated references are added to the bibliography of references on Iowa pteridophytes. Th...
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 the vascular plants occurring in Oxford County, Maine. Plants with vascular or co...
This is the third revision of the Checklist of Vascular Plants of Maine. Like its predecessors, it l...
In collecting ferns and fern allies in Brown County, Minnesota, during the 1964 summer, six of the s...
I have the pleasure of reporting the following list of Ferns, with accompanying specimens, as observ...
An annotated list and county-by-county distribution maps are presented for the 32 species of ferns a...
Perhaps no other group of plants attracts more interest among both professional and amateur botanist...
Report on rare and unusual plant species within the Dickey-Lincoln School Lakes project area. New En...
The following key is aimed at enabling students to determine the species and varieties of pteridophy...
With a few exceptions, the species on this list of Falmouth vascular plants are substantiated by her...
Bogs are fascinating places to visit! One may compare these sphagnum-covered areas with huge amphith...
The writer believes that for every floristic district of the State there should be a simple and conv...
A study of the ferns in East Central Illinois was conducted between the spring of 1976 and the sprin...
Cover title.The genus Isoetes in New England. By A. A. Eaton.--The system of ferns proposed in Die n...
Fifty-two annotated references are added to the bibliography of references on Iowa pteridophytes. Th...
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 the vascular plants occurring in Oxford County, Maine. Plants with vascular or co...
This is the third revision of the Checklist of Vascular Plants of Maine. Like its predecessors, it l...
In collecting ferns and fern allies in Brown County, Minnesota, during the 1964 summer, six of the s...
I have the pleasure of reporting the following list of Ferns, with accompanying specimens, as observ...
An annotated list and county-by-county distribution maps are presented for the 32 species of ferns a...
Perhaps no other group of plants attracts more interest among both professional and amateur botanist...
Report on rare and unusual plant species within the Dickey-Lincoln School Lakes project area. New En...
The following key is aimed at enabling students to determine the species and varieties of pteridophy...
With a few exceptions, the species on this list of Falmouth vascular plants are substantiated by her...
Bogs are fascinating places to visit! One may compare these sphagnum-covered areas with huge amphith...
The writer believes that for every floristic district of the State there should be a simple and conv...
A study of the ferns in East Central Illinois was conducted between the spring of 1976 and the sprin...
Cover title.The genus Isoetes in New England. By A. A. Eaton.--The system of ferns proposed in Die n...
Fifty-two annotated references are added to the bibliography of references on Iowa pteridophytes. Th...