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15 results for “Marsdenia”
FIGURE 1 in Marsdenia microcarpa, a new species of Marsdenia (Apocynaceae, Asclepiadoideae) from montane Guerrero, Mexico
FIGURE 1. Marsdenia microcarpa Juárez-Jaimes & Lozada-Pérez. A. Branch with inflorescences. B. Lateral view of the flower. C. Gynostegium showing corona lobes connate at base. D. Pollinia. E. Lateral view of rostrate corpuscle. F. Follicle. G. Seed. A, B, C, D from Lozada et al. 2822 (holotype: FCME). F. from Lozada et al. 3306 (MEXU). G. from Lozada et al. 3143 (MEXU).
FIGURE 3 in An unorthodox, new endemic species in New Caledonian Marsdenia (Apocynaceae, Asclepiadoideae, Marsdenieae)
FIGURE 3. Distribution map of Marsdenia goromotoorum (star) in New Caledonia with an insert showing the Kopéto massif area. Ultramafic substrates are shown in orange.
FIGURE 1. Marsdenia goromotoorum. A in An unorthodox, new endemic species in New Caledonian Marsdenia (Apocynaceae, Asclepiadoideae, Marsdenieae)
FIGURE 1. Marsdenia goromotoorum. A. An adult plant growing in its serpentine maquis habitat at the type locality (15th of January 2019); B. Flowering twig; C. A fertile branch with both flowers and follicles; D. Detail of an especially rich inflorescence; E. Flower in lateral view with parts cut away to show the two rings of trichomes inside corolla, and the gynostegium; F. Pollinarium; G. Two follicles. A, D Fleurot 538; B, E Fleurot 539; C, F, G Fleurot 506. Photos: A–D, G: D. Fleurot, E: G. Gâteblé, F: U. Meve.
FIGURE 2. Marsdenia goromotoorum. A in An unorthodox, new endemic species in New Caledonian Marsdenia (Apocynaceae, Asclepiadoideae, Marsdenieae)
FIGURE 2. Marsdenia goromotoorum. A. Longitudinal cut flower; B. Gynostegium in lateral view (lanceolate connective appendages hide the style-head); C. Pollinarium in frontal view with caudicles slightly recurved after removal from the style-head; D. Same pollinarium as in C in lateral back view. All from Fleurot 506 (Drawn by U. Meve).
FIGURE 5. Marsdenia ambuntiensis P.I.Forst. A in Modern sequels to the Kaiserin-Augusta-Fluss itinerary of Carl Ledermann: floristic discoveries from the upper Sepik of Papua New Guinea
FIGURE 5. Marsdenia ambuntiensis P.I.Forst. A, flowering branchlet (compare with Forster 1995: 892, Fig. 67); B, closer view of anthetic flowers. A–B from Takeuchi & Ama 22218.
FIGURE 6. Marsdenia lorea S.Moore. A in Modern sequels to the Kaiserin-Augusta-Fluss itinerary of Carl Ledermann: floristic discoveries from the upper Sepik of Papua New Guinea
FIGURE 6. Marsdenia lorea S.Moore. A, staminal corona; B, side view of flower; C, aspect, flowering raceme and one immature fruit. Compare with Forster 1995: 832–833, Figs. 7–8. A–C from Takeuchi, Towati, Jisaka & Ama 17302.
FIGURE 8. Marsdenia grandis P.I.Forst. A in Floristic discoveries from the LNG Pipeline in Papua New Guinea: Macaranga esseriana sp. nov. (Euphorbiaceae), and noteworthy records for twelve taxa from the southern provinces
FIGURE 8. Marsdenia grandis P.I.Forst. A, aspect; B, mature flowers. The perianth is fleshy, inflexible, frangible, and with the corolla lobes curved backwards forming a keel on the opposite side. These features are lost after drying. The malodorous flowers are bat-pollinated (mammalogist G. Richards, pers. comm.). A–B from Takeuchi et al. 22515.
FIGURE 9. South Karius. Montane collection site for Marsdenia grandis P.I in Floristic discoveries from the LNG Pipeline in Papua New Guinea: Macaranga esseriana sp. nov. (Euphorbiaceae), and noteworthy records for twelve taxa from the southern provinces
FIGURE 9. South Karius. Montane collection site for Marsdenia grandis P.I.Forst. (Takeuchi et al. 22515).
Fig. 1. – Marsdenia mayottae W.D in Two new species of Apocynaceae, Asclepiadoideae from Mayotte
Fig. 1. – Marsdenia mayottae W.D. Stevens, Labat & Barthelat. A. Habit; B. Gynostegium; C. Pollinarium. [Barthelat et al. 295, P] [Drawing: A. Arbeláez]
Figure 1 from: Liu C, Ya J-D, Tan Y-H, He H-J, Dong G-J, Li D-Z (2019) Marsdenia yarlungzangboensis (Apocynaceae, Asclepiadoideae), a new species from Xizang, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 85-92. https://doi.org/10.3897/phytokeys.130.34152
Figure 1 Marsdenia yarlungzangboensis C.Liu, J.D.Ya & Y.H.Tan A habit B flower (lateral view) C opened calyx D opened corolla E gynostegium and staminal corona F pistil G pollinarium.
Figure 2 from: Liu C, Ya J-D, Tan Y-H, He H-J, Dong G-J, Li D-Z (2019) Marsdenia yarlungzangboensis (Apocynaceae, Asclepiadoideae), a new species from Xizang, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 85-92. https://doi.org/10.3897/phytokeys.130.34152
Figure 2 Marsdenia yarlungzangboensis C.Liu, J.D.Ya & Y.H.Tan A habit B inflorescences and adaxial leaf surface C abaxial leaf surface D flower (lateral view) E flower (front view, showing hairy throat) F opened corolla G opened calyx H gynostegium and staminal corona I pistil J pollinarium. Photo credit: Cheng Liu (A–E) and Lian-Yi Li (F–J).
Fig. 2. Key 2D NMR correlations for 1 in Steroid glycosides from the roots of Marsdenia tenacissima
Fig. 2. Key 2D NMR correlations for 1 and the ester fragments.
Fig. 1 in Steroid glycosides from the roots of Marsdenia tenacissima
Fig. 1. Chemical structures of 1–21 from M. tenacissima.
Fig. 5 in Steroid glycosides from the roots of Marsdenia tenacissima
Fig. 5. ECD and UV spectra of 4.
Fig. 3 in Steroid glycosides from the roots of Marsdenia tenacissima
Fig. 3. Plausible mechanism of the intramolecular transacetylation of 10/11 and 12/13.
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