Results 211 to 220 of about 16,454 (262)
Some of the next articles are maybe not open access.
1970
The ferns and fern allies include the ferns, psilopsids, lycopsids, and horsetails (sphenopsids). These are seedless, vascular plants. They have an alternation of generations in which the sporophyte is dominant and has an axis containing xylem and phloem.
openaire +1 more source
The ferns and fern allies include the ferns, psilopsids, lycopsids, and horsetails (sphenopsids). These are seedless, vascular plants. They have an alternation of generations in which the sporophyte is dominant and has an axis containing xylem and phloem.
openaire +1 more source
The Ferns and Fern Allies of Missouri
American Fern Journal, 1932The fern flora of eastern North America attains its maximum development in the number of species as well as in the luxuriant abundance of many of them, in the northeastern states and in the Appalachian Mountains. The number of species diminishes gradually westward, and most of them have disappeared in the plains states, although some few extend to the ...
Ernest J. Palmer, Julian A. Steyermark
openaire +1 more source
Biological Reviews, 1949
SummaryIntensive morphological studies have been devoted to the more primitive ferns, which represent a small minority of living species, but too little is yet known about the vast majority of other ferns, with the result that recent attempts at a natural classification show considerable differences of treatment.The problem is complicated by convergent
openaire +2 more sources
SummaryIntensive morphological studies have been devoted to the more primitive ferns, which represent a small minority of living species, but too little is yet known about the vast majority of other ferns, with the result that recent attempts at a natural classification show considerable differences of treatment.The problem is complicated by convergent
openaire +2 more sources
Science, 2015
At first, I was saddened when I read the Working Life article “For the love of ferns” (19 December 2014, p. [1586][1]), in which K. Perkins describes getting into science by accident, pursuing her graduate degree in a top lab at Albert Einstein College of Medicine, accepting a tenure-track position at Johns Hopkins, and subsequently withdrawing from ...
openaire +2 more sources
At first, I was saddened when I read the Working Life article “For the love of ferns” (19 December 2014, p. [1586][1]), in which K. Perkins describes getting into science by accident, pursuing her graduate degree in a top lab at Albert Einstein College of Medicine, accepting a tenure-track position at Johns Hopkins, and subsequently withdrawing from ...
openaire +2 more sources
2017
Die 17 Beiträge dieses Bandes umkreisen die zentralen Begriffe des IV. Kongresses des Mitteleuropäischen Germanistenverbandes (MGV) im April 2014 in Erfurt mit ganz verschiedenen Ansätzen und Fragestellungen. Ob es das Verhältnis des Menschen zur Natur ist, ob Migranten und Einheimische, ob Vergangenheit und Gegenwart - die Frage danach, wo im Leben ...
Detlef Haberland, Csaba Földes
openaire +1 more source
Die 17 Beiträge dieses Bandes umkreisen die zentralen Begriffe des IV. Kongresses des Mitteleuropäischen Germanistenverbandes (MGV) im April 2014 in Erfurt mit ganz verschiedenen Ansätzen und Fragestellungen. Ob es das Verhältnis des Menschen zur Natur ist, ob Migranten und Einheimische, ob Vergangenheit und Gegenwart - die Frage danach, wo im Leben ...
Detlef Haberland, Csaba Földes
openaire +1 more source
Ferns and Fern Allies of Louisiana.
American Midland Naturalist, 1942H. L. Blomquist +2 more
openaire +1 more source
The Ferns and Fern Allies of Wisconsin.
Bulletin of the Torrey Botanical Club, 1953M. A. Chrysler, R. M. Tryon
+4 more sources
Global patterns of fern species diversity: An evaluation of fern data in GBIF
Plant Diversity, 2022Hong Qian
exaly
Ferns and Fern Allies in Wisconsin
American Fern Journal, 1928W. N. Steil, A. M. Fuller
openaire +1 more source