Results 221 to 230 of about 32,623 (258)

Spore Morphology in Thelypteridaceae I: Pseudocyclosorus

Kew Bulletin, 1980
This is the first of a proposed series of papers on the spore morphology of ferns in the family Thelypteridaceae, mainly as seen using the scanning electron microscope (S.E.M.), but where useful also with the light microscope. Various authors have studied the taxonomy of this family and attempted to classify its species (Christensen, 1913, 1920; Ching,
openaire   +1 more source

Pollen spore morphology and plant evolution

Journal of Palaeosciences, 1996
Spores and pollen grains both are resistant to environmental stress and diagnostic by virtue of the unique exine characteristics, by which it has emerged as a reliable tool in evolutionary biology, both of fossils and present day plants, at various taxa levels.
openaire   +1 more source

Morphology of the Spores and Prothallus of Christiopteris tricuspis

American Fern Journal, 1967
Christiopteris Copel. is a small genus of epiphytic, polypodiaceous ferns that has morphologically better-known sporophytes than many other genera of leptosporangiate ferns. Three species are recognized, one of Sikkim, Annam, and Malaya, another of the Philippines, and the third of New Caledonia. Bower (1928, pp.
openaire   +1 more source

Pollen and Spore Morphology

American Fern Journal, 1960
Clair A. Brown, G. Erdtman
openaire   +1 more source

A study of the morphology of the spore genus AncyrosporaRichardson

Review of Palaeobotany and Palynology, 1969
Abstract Fossils assignable to the genus Ancyrospora Richardson have been recovered from Devonian strata of Iowa and Missouri. The Scanning Electron Microscope (S.E.M.) has been used to examine them and has made it possible to interpret details of spore morphology not previously recognized.
openaire   +1 more source

Aerobiology and morphology of myxomycete spores

Journal of Allergy and Clinical Immunology, 2005
S.O. Surratt, E. Levetin
openaire   +1 more source

Taxonomy and spore morphology of genus Adiantum (Vittarioideae; Pteridaceae) from Pakistan

Microscopy Research and Technique, 2021
M Irfan, Gul Jan, Waheed Murad
exaly  

Taxonomy and spore morphology of selected taxa of Cheilanthoideae and Pteridoideae (Pteridaceae) from Pakistan

Microscopy Research and Technique, 2021
M Irfan, Gul Jan, Waheed Murad
exaly  

Spore Morphology

2019
Shripad N. Agashe, Eric Caulton
openaire   +1 more source

Spore morphology in selected Inocybe species

1984
The spores of forty-four Inocybe taxa were examined using electron optics. Taxa were selected from nomenclatorial type and and other collections held in the E.C. Smith Herbarium, Acadia University, Wolfville, Nova Scotia. A technique was developed in which exsiccata were rehydrated with a descending acetone gradient, fixed in a 2.5% phosphate buffered (
openaire   +1 more source