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60 results for “Tabernaemontana”
FIGURE 7 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 7. Comparison of the corolline corona in Tabernaemontana amygdalifolia and T. citrifolia. a–c. Tabernamontana citrifolia with evident corona alternate with the stamens. d–e. Tabernamontana amygdalifolia with lobed corona opposite to the stamens. Abbreviation: St: stamens. CCo. Corolline Corona.
FIGURE 3 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 3. Comparison of fruits of selected species of Tabernaemontana in Mexico. a T. alba. b T. amygdalifolia. c T. arborea. d T. chamelensis. e T. citrifolia (open fruit). f T. donnell–smithii. e T. glabra. h T. eubracteata. i T. hannae. j T. litoralis. k T. mixtecana. l T. oaxacana. m T. ochoterenae. n T. riverae (open fruits). o T. tomentosa.
FIGURE 5 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 5. UPGMA diagram showing the affinity of the Mexican Tabernaemontana to those of other countries in the Americas.
FIGURE 4 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 4. Maps showing species richness distribution of Tabernaemontana in Mexico. a Number of species by state. b Map of species diversity calculated with kriging. c Map of species diversity based on the sum of the species distribution models.
FIGURE 2 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 2. Comparison of flowers of selected species of Tabernaemontana in Mexico. a T. alba. b T. arborea. c T. stenoptera. d T. venusta. e T. chamelensis. f T. citrifolia. g T. amygdalifolia. h T. hannae. i T. oaxacana. j T. donnell–smithii. k T. ochoterenae. l T. eubracteata. m T. riverae. n T. glabra. o T. tomentosa. p T. litoralis.
FIGURE 1 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 1. Selected species of Tabernaemontana in Mexico. a Flowers of T. alba. b Flowers of T. arborea. c Fruit of T. arborea. d Flower of T. citrifolia. e–f. Flower of T. donnell–smithii. g Fruit of T. donnell–smithii. h Flowers of T. divaricata. i Flower of T. glabra. j Fruit of T. glabra. k Flowers of T. hannae. l Flowers of T. ochoterenae. m Flower of T. litoralis. n Fruit of T. litoralis. o Flowers of T. tomentosa. Photographs of Francisco Morales (d), and César González (l).
FIGURE 3. A–B in A new species of Tabernaemontana (Apocynaceae; Rauvolfioideae: Tabernaemontaneae) from Mexico
FIGURE 3. A–B. Mural "Man, Controller of the Universe". A. Inferior corner of the mural; B. Main section of the mural. C–D. Sump of Dolores, the mural "Water, origin of life".
FIGURE 2. Tabernaemontana riverae. A. Branch with leaves and flowers. B–C. Flower. D. Flower detail. E. Anthers. F in A new species of Tabernaemontana (Apocynaceae; Rauvolfioideae: Tabernaemontaneae) from Mexico
FIGURE 2. Tabernaemontana riverae. A. Branch with leaves and flowers. B–C. Flower. D. Flower detail. E. Anthers. F. Detail of base ovary and sepals. G. Stigma. H. Fruit. I. Seed. Illustration based on A–G. T. Wendt y A. Villalobos 2554, H–I Juan & Avedaño 15.
FIGURE 4 in A new species of Tabernaemontana (Apocynaceae; Rauvolfioideae: Tabernaemontaneae) from Mexico
FIGURE 4. Comparison of flower sizes and morphology among Tabernaemontana riverae and species related morphologically. T. robinsonii holotype specimen (A), T. riverae specimen of T. Wendt y A. Villalobos 2554 (B) and holotype specimen (C), T. hannae
Fig. 7. 1H–1H in Iboga-type alkaloids with Indolizidino[8,7-b]Indole scaffold and bisindole alkaloids from Tabernaemontana bufalina Lour
Fig. 7. 1H–1H COSY (red bold) and selected HMBC (blue single arrows) correlations of 4 (up left) and 5 (up right), and key NOESY (blue dashed arrows) correlations of 4. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. S9 in Iboga-type alkaloids with Indolizidino[8,7-b]Indole scaffold and bisindole alkaloids from Tabernaemontana bufalina Lour
Fig. S9. The experimental NMR data of 1 were compared with those calculated of 1a and 1b using the linear correlation coefficients (R2), root mean squared error (RMSE) and DP4 + probability analysis. The calculated 13C NMR data for 1a possessed the highest R2 value (0.9991) and lowest RMSE value (1.6). In addition, DP4 + analysis based on all NMR data also showed 100% probability of 1a, which indicated that 1a (14S*, 16R*, 20S*) was the correct relative configuration of 1. To determine the absolute configuration, two stereoisomers 1a-1 (14S, 16R, 20S) and 1a-2 (14R, 16S, 20R) were used as the model compounds. The calculated ECD spectra of 1a-1 and 1a-2 were obtained
Fig. 1. – Tabernaemontana capuronii Leeuwenb. A in Description du fruit de Tabernaemontana capuronii Leeuwenb. (Apocynaceae), 40 ans après la découverte de l'espèce
Fig. 1. – Tabernaemontana capuronii Leeuwenb. A. Fruit; B. Coupe transversale du fruit. [Photo:. Lehavana]
Fig. 1 in Germinação in vitro de sementes e PArâmetros morfofisiológicos de microestAcAs de Tabernaemontana catharinensis A. DC.
Fig. 1. Percentagem de germinação das sementes de Tabernaemontana catharinensis em condições in vitro. * Letras minúsculas diferentes indicam diferença significativa entre as concentrações de GA 3 dentro do tempo de imersão. Letras maiúsculas diferentes indicam diferença significativa entre o tempo de imersão dentro da mesma concentração de GA3, pelo teste de Scott-knott a 5% de probabilidade.
Fig. 4 in Germinação in vitro de sementes e PArâmetros morfofisiológicos de microestAcAs de Tabernaemontana catharinensis A. DC.
Fig. 4. Enraizamento de microestacas de Tabernaemontana catharinensis em diferentes concentrações de AIB aos 30 dias após a inoculação.
Fig. 3 in Germinação in vitro de sementes e PArâmetros morfofisiológicos de microestAcAs de Tabernaemontana catharinensis A. DC.
Fig. 3. Percentagem de enraizamento das microestacas de Tabernaemontana catharinensis em diferentes concentrações de AIB. *Médias seguidas de mesma letra não diferem entre si pelo teste de Scott-Knott a 5% de probabilidade.
FIGURE 11 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 11. Holotype of Tabernaemontana ochoterenae.
FIGURE 8 in The triad of knowledge: Systematic, diversity and conservation status of the Mexican species of Tabernaemontana (Apocynaceae; Rauvolfioideae: tribe Tabernaemontaneae)
FIGURE 8. Holotype of Tabernaemontana chamelensis.
FIGURE 1 in A new species of Tabernaemontana (Apocynaceae; Rauvolfioideae: Tabernaemontaneae) from Mexico
FIGURE 1. Holotype of Tabernaemontana riverae deposited in XAL.
Fig. 7 in Polyneurines A H, iboga alkaloids from Tabernaemontana polyneura
Fig. 7. DP4+ analysis for 3, 4, 7, and 8.
Fig. 6. X in Polyneurines A H, iboga alkaloids from Tabernaemontana polyneura
Fig. 6. X-ray crystal structure of 2.
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