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Chromosome Number and Chromosome Morphology in Helicophyllum crassipes
Nature, 1951Helicophyllum crassipes (Araceae)1 grows as a weed in the coastal belt of Egypt, in localities where the soil is light calcareous sand and where the percentage of salt is low. It is a corm-geophyte which sprouts late in October and flowers during January and February; flowering sometimes extends through March and April.
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Symbols for Chromosome Numbers
Nature, 1934IN a paper on the chromosomes of Chrysanthemum, Shimotomai1 pointed out the need for a special symbol to represent the basic number of chromosomes in genera containing polyploid species. He suggests, however, that n should be used for this purpose, and 2 being introduced as new symbols for the gametic and zygotic numbers of chromosomes respectively in ...
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Chromosome Numbers of Cerastium Species
Nature, 1950THE chromosomes of four species of Cerastium, namely, C. vulgatum, C. alpinum (including C. alpinum lanatum), C. arvense and C. perfoliatum, have been counted from root-tips of young seedlings. I give here a list of chromosome counts made by previous workers, none of which is of British material, together with my own counts.
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1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Faasen, Paul van, Sterk, F F
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Faasen, Paul van, Sterk, F F
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Chromosome Numbers in Menispermaceæ
Nature, 1934IN a recent communication to NATURE1, entitled, “Origin of the Angiosperms”, Dr. Anderson puts forward the interesting suggestion of the possible origin of modern flowering plants through the Magnoliales from wide crosses between different groups of Gymnosperms showing 12 and 7 as the base number of their chromosomes, such as the modern Ginkgoales ...
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Chromosome numbers in the proteaceae
Australian Journal of Botany, 1963Chromosome numbers have been determined for 19 genera and 53 species of Proteaceae in Australia. The chromosomes are small in all genera except Persoonia n = 7, Placospermum n = 7 (Johnson and Briggs 1963) and Bellendena n = 5 (Venkata Rao 1957), which have chromosomes comparable in size with those in the Liliaceae and Ranunculaceae.
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Chromosome numbers in Lamprothamnium
1966(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Chromosome numbers in the Casuarinaceae
Australian Journal of Botany, 1959Chromosome numbers of 37 species of Casuarina are reported, and found to conform with a suggested division of the genus into major species groups. The extra-Australian species groups are probably ancient, and are at the primary diploid level of the genus (x = 8 or 9).
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