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7 results for “Polystemma”
FIGURE 1. Polystemma leopardum A. Branch segment with inflorescence and flower bud. B in A new species of Polystemma (Apocynaceae, Asclepiadoideae, Asclepiadeae, Gonolobineae) from the state of Oaxaca, Mexico
FIGURE 1. Polystemma leopardum A. Branch segment with inflorescence and flower bud. B. Detail of stem pubescence. C. Detail of leaf base with colleters. D. Flower. E. Gynostegium and gynostegial corona. F. Detail of the lobe of the gynostegial corona G. Pollinarium. H. Fruit. Illustration by Ericka Belén Cortez Castro, based on the holotype.
FIGURE 2. Polystemma leopardum A. Habitat. B. Plant climbing. C in A new species of Polystemma (Apocynaceae, Asclepiadoideae, Asclepiadeae, Gonolobineae) from the state of Oaxaca, Mexico
FIGURE 2. Polystemma leopardum A. Habitat. B. Plant climbing. C. Detail of suberous stem. D. Leaves and flowers. E. Top view of flower and bud. F. Lateral view of flower. G. Gynostegium and gynostegial corona. H. Fruit. Photograph credits A–F Abisaí García-Mendoza, G–H Abigail López Santiago.
FIGURE 2. Polystemma stevensii. A. Stems with yellow cork B. Branch with inflorescences. C. Flowers with some floral visitors. D in Polystemma stevensii (Apocynaceae, Asclepiadoideae), a new species from Michoacán, Mexico
FIGURE 2. Polystemma stevensii. A. Stems with yellow cork B. Branch with inflorescences. C. Flowers with some floral visitors. D. Frontal view of a flower. E. Frontal view of a flower, showing the gynostegium. F. Lateral view of a flower, showing the gynostegium. Photos by Victor W. Steinmann.
FIGURE 1. Polystemma stevensii. A. Flowering branch. B in Polystemma stevensii (Apocynaceae, Asclepiadoideae), a new species from Michoacán, Mexico
FIGURE 1. Polystemma stevensii. A. Flowering branch. B. Frontal view of a flower. C. Detail of gynostegial corona showing appendages and five lobes fused basally to form a flat discontinuous ring. D. Pollinarium. E. Branch with a follicle. Illustration by Ericka B. Cortez.
FIGURE 3 in A new species of Polystemma (Apocynaceae, Asclepiadoideae, Asclepiadeae, Gonolobineae) from the state of Oaxaca, Mexico
FIGURE 3. Known geographical distributions of Polystemma cordatum and P. leopardum.
FIGURE 3 in Polystemma stevensii (Apocynaceae, Asclepiadoideae), a new species from Michoacán, Mexico
FIGURE 3. Maps showing the occurrence of Polystemma stevensii.
FIGURE 4. Morphologically similar species. A–D. Polystemma cordatum. A in A new species of Polystemma (Apocynaceae, Asclepiadoideae, Asclepiadeae, Gonolobineae) from the state of Oaxaca, Mexico
FIGURE 4. Morphologically similar species. A–D. Polystemma cordatum. A. Branch with flowers of the type. B–C. Different views of the flowers of the type. D. Detail of the gynostegium. E–H. Polystemma leopardum. E. Branch with flowers of the type. F. Detail of the gynostegium. G. Section of the flower. H. Detail of the gynostegium. Photograph credits: A–C Holotype specimen, Purpus 3836 (UC124986!), D. Illustration by Elvia Esparza, Flora de TehuacánCuicatlán (Juárez-Jaimes & Lozada 2003), E–G. Specimen type H. Illustration by Ericka Belén Cortez Castro, based on the holotype.
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