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REPRODUCTIVE BIOLOGY OF ASCLEPIAS EXALTATA
American Journal of Botany, 1986An analysis of the relationships between plant size and survivorship and reproductive success was carried out by sampling four populations of the herbaceous perennial milkweed Asclepias exaltata in Virginia from 1980 to 1982. The annual survivorship rate (about 65%) is the lowest measured for
T Randolph, Shannon, Robert, Wyatt
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Comparative Anatomy and Morphology of Asclepias perennis and Asclepias tuberosa Subspecies Rolfsii
Botanical Gazette, 1986Plants of Asclepias perennis Watt. and A. tuberosa L. ssp. rolfsii are examined to determine structural characteristics of these species from different habitats. Some structural features in both species are related to growth habit. Stomata occur more frequently on the adaxial surface of the leaves of both species from the dry, sunny sites and are more ...
T. W. Lucansky, K. T. Clough
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1875
Aus dem Besitz des Sohnes Egbert Stockar (1842-1903), dessen Tochter Bertha Schindler-Stockar (1876-1961) und deren Tochter Ella Ninck-Schindler (1898-1996) Exemplar der Zentralbibliothek Zürich, Graphische Sammlung und ...
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Aus dem Besitz des Sohnes Egbert Stockar (1842-1903), dessen Tochter Bertha Schindler-Stockar (1876-1961) und deren Tochter Ella Ninck-Schindler (1898-1996) Exemplar der Zentralbibliothek Zürich, Graphische Sammlung und ...
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Studies on Species of Asclepias. V. Chemistry †
Journal of the American Pharmaceutical Association (Scientific ed.), 1952The results of chemical investigations carried out upon the roots of six members of the genus Asclepias are reported. The preliminary phase of this study consisted of a proximate analysis of the roots of A. tuberosa L., A. syriaca L., A. speciosa Torr., A. incarnata L. var. alba Hort., A. incarnata L. var. pulchra Hort., and A. curassavica L.
W E, HASSAN, E V, LYNN
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Curtis's Botanical Magazine, 2007
Summary An illustration and description is provided for Asclepias barjoniifolia E. Fourn. This species is compared with A. pilgeriana Schltr., a second yellow‐flowered species from the Andes of Bolivia and northern Argentina. Revised synonymies are outlined for each species, and five names are lectotypified.
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Summary An illustration and description is provided for Asclepias barjoniifolia E. Fourn. This species is compared with A. pilgeriana Schltr., a second yellow‐flowered species from the Andes of Bolivia and northern Argentina. Revised synonymies are outlined for each species, and five names are lectotypified.
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