Results 181 to 190 of about 9,812 (217)

Taxonomy of the Subspecies of Papaver pulvinatum (Papaveraceae)

Annales Botanici Fennici, 2019
The taxonomy and geographic distribution of four subspecies of the arctic Siberian taxon Papaver pulvinatum Tolm., viz. subsp. interius, subsp. alexandri V.V. Petrovsky subsp. nova, subsp. tschuktschorum Tolm. subsp. nova, and the autonymous subspecies, are discussed. The name P. pulvinatum subsp. lenaense Tolm.
Vladislav V. Petrovsky, Marina A. Mikhailova, Irina V. Sokolova   +2 more
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Meconic acid as a chemotaxonomic marker in the papaveraceae

Phytochemistry, 1978
Abstract Of 48 species of Papaveraceae examined representing 12 genera, 24 were shown to contain meconic acid and of these, 21 were Papaver species. Meconopsis cambrica was also found to contain meconic acid, in contrast to other species of Meconopsis examined.
Elizabeth Williamson, J.W. Fairbairn
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STOMATA ON THE FRUITS AND SEEDS OF ESCHSCHOLZIA (PAPAVERACEAE)

American Journal of Botany, 1979
Stomata are present on the outer and inner fruit walls and seed coats of Eschscholzia californica, E. covillei, E. glyptosperma, E. lemmonii and E. minutiflora. The stomata on the inner fruit wall and seed coat remain constantly open, even under plasmolyzing conditions, whereas those of the outer fruit wall are able to open and close.
Judith A. Jernstedt, Curtis Clark
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Wood and Bark Anatomy of Argemone (Papaveraceae)

IAWA Journal, 1994
Wood anatomy of Argemone fruticosa, sole shrubby species of the genus, is distinctive in having growth rings, thick-walled libriform fibres, thick-walled ray cells with large intercellular spaces, vessels with grooves interconnecting pit apertures, and restriction of vessels to central portions of fascicular areas. Most of these features are related to
R. B. Miller, Sherwin Carlquist, Edward L. Schneider   +2 more
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Papaveraceae

1982
Annual or perennial herbs, with milky or coloured juice. Leaves alternate, entire or pinnatifid or palmatifid. Stipules wanting. Flowers usually solitary, hermaphrodite, actinomorphic. Sepals 2, rarely 3 or 4, free, very caducous. Petals 4, rarely more or wanting, free, imbricate, deciduous. Stamens numerous; filaments free, filiform; anthers 2-celled,
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Papaveraceae

1955
Annual or perennial, laticiferous herbs, rarely shrubs. Leaves (in Mal. spp.) spirally arranged, often incised. Stipules 0. Flowers mostly solitary, large, actinomorphic, ♀♂, 2—3-merous. Sepals caducous or calyptrate, free or united. Petals free, 4-6, rarely more or absent, biseriate, imbricate, often crumpled in bud; nectaries absent. Stamens ~, free;
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The Papaveraceae: Benevolence—Opium, Chelidonium and Sanguinaria

Homœopathic Links, 2018
AbstractAlex Leupen has worked in the Homeopathic Doctors Centre in Utrecht, the Netherlands, since 1990. Eight colleagues work in this centre, including Jan Scholten. Alex is an experienced teacher (the Netherlands, Belgium, France and Germany) on the underlying systems in the plant families, animal kingdom, sarcodes, nosodes, fungi and the periodic ...
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A revision of Papaver sect. Carinatae (Papaveraceae)

Nordic Journal of Botany, 1987
Of the seven species recognized in Papaver sect. Carinatae by Fedde only P. macrostomum is retained here. Besides the type variety with glabrous capsules and pedicels with appressed setae forms with pedicels with patent setae are recognized as var. dalechianum comb, et stat. nov.
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The Identification of the Seeds of the British Papaveraceae

Annals of Botany, 1970
J. C. Raymond, J. T. Swarbrick
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Corydalis govaniana Wall. Papaveraceae

2020
Hassan Sher, Rainer W. Bussmann, Narel Y. Paniagua-Zambrana, Ikram Ur Rahman, Hammad Ahmad Jan   +4 more
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