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64 results for “Pavetteae”
FIG. 13 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 13. — Carte de distribution de Leptactina liebrechtsiana De Wild. & T.Durand.
FIG. 3 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 3. — Carte de distribution de Leptactina deblockiae Neuba & Sonké.
FIG. 6 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 6. — Carte de distribution de Leptactina densiflora Hook.f.
FIG. 5 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 5. — Carte de distribution de Leptactina delagoensis var. delagoensis K.Schum.
FIG. 10 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 10. — Carte de distribution de Leptactina laurentiana var. laurentiana Dewèvre.
FIG. 9 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 9. — Carte de distribution de Leptactina latifolia K.Schum.
FIG. 8 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 8. — Carte de distribution de Leptactina involucrata Hook.f.
FIG. 1 in Notes sur le genre Africain Leptactina Hook.f. (Rubiaceae, Pavetteae)
FIG. 1. — Carte de distribution de Leptactina angolensis Bullock ex I.Noguiera.
Fig. 3 in Monograph of the western Indian Ocean genus Paracephaelis (Rubiaceae - Pavetteae), with description of thirteen new species
Fig. 3. Seed and seed-coat of Paracephaelis grandifructa De Block sp. nov. A. Lateral view of seed, showing the elongate, shallow hilum. B. Transverse section through seed, showing embryo sac. C. Longitudinal section through seed, showing embryo sac and embryo. D. Seed-coat in surface view. E. Section through seed-coat on the abaxial side of the seed, showing plate-like thickenings along outer tangential and lateral walls of the exotesta cells. F. Section through seed-coat in the region of the hilum, showing elongation of the exotesta cells. Drawn by Mr A. Fernandez. From Solo & Randrianasolo 25. Abbreviations: en = endosperm; ent = endotesta; ext = exotesta; h = hilum; pl = placenta; sc = seed-coat.
Fig. 2 in Monograph of the western Indian Ocean genus Paracephaelis (Rubiaceae - Pavetteae), with description of thirteen new species
Fig. 2. Overview of the placentation in Paracephaelis Baill. A–K. Abaxial views of placenta and ovules. A'. Adaxial view of placenta and ovules with zone of attachment of the placenta indicated. A–C. Typical placentation type of Paracephaelis, with many ovules arranged at the periphery of the placenta. D–E. Idem, with fewer ovules. F–H. Idem, but ovules restricted to the top of the placenta. I. Typical placentation type in P. cinerea (A.Rich. ex DC.) De Block, P. comorensis De Block sp. nov. and P. trichantha (Baker) De Block. J–K. Idem, with fewer ovules. Drawn by Mr A. Fernandez. From Perrier de la Bâthie 13452 (P. tiliacea Baill., A, A'); Pervillé 633 (P. tiliacea Baill., B); Capuron 23451-SF (P. longipedicellata De Block sp. nov., C); McPherson et al. 14875A (P. saxatilis (Scott Elliot) De Block, D); Gautier et al. 4188 (P. gautieri De Block sp. nov., E); De Block et al. 1280 (P. bardotiae De Block sp. nov., F); De Block et al. 1048 (P. russata De Block sp. nov., G–H); Capuron 23073-SF (P. cinerea (A.Rich. ex DC.) De Block, I); Barthelat et al. 732 (P. comorensis De Block sp. nov., J); and Labat & Pascal 2887 (P. comorensis De Block sp. nov., K).
Figure 9 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 9 Pollen of Exallosperma and Helictosperma. A–D, M Exallosperma longiflora E–H, N Helictosperma malacophylla I–L H. poissoniana. A, E, I polar view B, F, J equatorial view C, G, K mesocolpium D, H, L ectoaperture M, N pollen grain wall. A, M Nusbaumer & Ranirison 1992 B–D De Block et al. 1132 E–H, N Phillipson 3068 I–L Leandri 573.
Figure 5 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 5 Exallosperma longiflora: pyrene and seed. A fruit with exocarp and mesocarp removed, showing two pyrenes B abaxial view of pyrene, showing apical preformed germination slit C adaxial view of pyrene, showing apical preformed germination slit and open centre D lateral view of seed, showing irregular ridges on the seed surface E cross-section through pyrene and seed, showing the adaxial opening of the pyrene, the entire endosperm and the irregular ridges formed by strongly elongated exotesta cells F longitudinal section of seed, showing the embryo position. A–F Capuron 24663-SF.
Figure 4 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 4 Exallosperma longiflora. A habit B stipules C inflorescence D bracteole, ovary and calyx E corolla and stigma F longitudinally opened flower, showing the position of stamens and style G stigma H placenta and ovules, abaxial view I fruit (with bracteole). A–G Capuron 24425-SF H De Block et al. 1132 I Capuron 24663-SF.
Figure 10 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 10 Pseudocoptosperma menabense. A fruiting branch B stipule C triad of flowers (corollas removed) D bracteole, ovary and calyx E corolla, style, stigma and anthers F placenta and ovules, abaxial view G fruit H pyrene I seed J longitudinal section through seed. A, B Groeninckx et al. 108 C–F Martin 8252-SF G–J Rabarivola 19861-SF.
Figure 13 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 13 Pollen of Pseudocoptosperma and Tulearia. A–C, J Pseudocoptosperma menabense D–F, K Tulearia capsaintemariensis G–I, L, M T. splendida. A, D, G polar view B, E, H equatorial view C, F, I mesocolpium J–L ectoaperture M pollen grain wall. A–C, J Capuron 20569-SF; D–F, K Groeninckx et al. 309 G–I, L, M Capuron 20777-SF.
Figure 1 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 1 BI phylogram of the Afro-Madagascan Pavetteae clade and two outgroup taxa using rps16, trnT-F, petD, accD-psa1, PI and ITS sequences. BPP support is indicated.
Figure 8 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 8 Helictosperma malacophylla: pyrene and seed. A pyrene showing four preformed germination slits, lateral view B pyrene falling apart into four valves along preformed germination slits, lateral view C seed, adaxial view, with embryo position indicated D transverse section through seed. A–D coll. ignot. 19146-SF.
Figure 3 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 3 Tulearia. A–D Tulearia splendida: A habit B flowers C young inflorescence showing calyces and flower buds D young fruits E–K T. capsaintemariensis: E, F habit G branching pattern H top view of flower I lateral view of flower J ovary and calyx K fruit. Photographs: P. De Block (A, B, E, F, J), S. Dessein (C, D), M. Strack Van Schijndel (G–I), I. Van der Beeten (K).
Figure 12 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 12 Tulearia capsaintemariensis. A, habit B adaxial view of leaf C bracteole, ovary and calyx D corolla, style, stigma and anthers E young fruit F transverse section through fruit G seed, lateral view H placenta and ovules, abaxial view I placenta and ovules, adaxial view. A, B, E, F Groeninckx et al. 309 C, D, G–I De Block et al. 2421.
Figure 2 from: De Block P, Rakotonasolo F, Ntore S, Razafimandimbison SG, Janssens S (2018) Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands. PhytoKeys 99: 1-66. https://doi.org/10.3897/phytokeys.99.23713
Figure 2 Exallosperma and Helictosperma. A–C Exallosperma longiflora: A flowering branch B inflorescence C infructescence from herbarium specimen Gautier et al. 4257 D Helictosperma poissoniana, flowering branch E, F Helictosperma malacophylla: E inflorescence F detail of inflorescence. Photographs: P. De Block (A, D), S. Dessein (E, F), L. Nusbaumer (B, C, ©: Conservatoire et Jardin botaniques de la Ville de Genève).
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