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52 results for “Icacinaceae”
FIG. 4 in Révision synoptique du genre Pyrenacantha (Icacinaceae) à Madagascar
FIG. 4. — Pyrenacantha humblotii (Baill.) Sleumer, inflorescences ♀. Labat & Breteler 3370.
FIG. 2 in Révision synoptique du genre Pyrenacantha (Icacinaceae) à Madagascar
FIG. 2. — Distribution des espèces de Pyrenacantha Wight de Madagascar.
Nothapodytes burmanica (Icacinaceae), a new species from Kachin State, Myanmar
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FIGURE 4. Vadensea testui. A. Flowering branch. B. Flower. C. Flower bud. D. Calyx. E. Flower opened. Vadensea vogelii. F. Flower. G. Flower bud. H. Flower opened. I in Vadensea (Icacinaceae), a new genus to accommodate continental African species of Desmostachys
FIGURE 4. Vadensea testui. A. Flowering branch. B. Flower. C. Flower bud. D. Calyx. E. Flower opened. Vadensea vogelii. F. Flower. G. Flower bud. H. Flower opened. I. Fruit (from spirit). J. Fruit indumentum detail. K. Cross section same fruit. L. Dry fruit. M. Dry fruit indumentum detail. N. Endocarp. A–E: drawn from: Sosef et al. 2564 (WAG); F–H: Jongkind 6232 (WAG); I–K: Versteegh & den Outer 665 (WAG); L–N: de Koning 196 (WAG). Drawn by Hans de Vries, June 2018.
FIGURE 1. Vadensea oblongifolia. A in Vadensea (Icacinaceae), a new genus to accommodate continental African species of Desmostachys
FIGURE 1. Vadensea oblongifolia. A. Detail of long inflorescence. B. Flower from long inflorescence. C. Flower opened. D. Flower bud from short inflorescence. E. Flower from short inflorescence. F. Flower opened. G. Fruit (from spirit). H. Fruit cross section. I. Endocarp; Vadensea tenuifolia. J. Inflorescence detail, flower opened. K. Petal from inside. L. Fruit (from spirit). M. Endocarp. Desmostachys planchonianus. N. Fruit. O. Endocarp. A–C: drawn from: JJ de Wilde 8348 (WAG); D–F: JJ de Wilde 9297 (WAG); G & H: Bos 6689 (WAG); I: Strijk 110 (WAG); J & K: Breteler 13226 (WAG-alc); L & M: Bos 4277 (WAG); N & O: B. Lewis 735 (BR). Drawn by Hans de Vries, June 2018.
Data from: Revision of Icacinaceae from the Early Eocene London Clay flora based on X-ray micro-CT
The Early Eocene (Ypresian) London Clay Formation contains one of the most important fruit and seed assemblages from the Paleogene, including a large diversity of taxa (>350 spp.) preserved as pyrite permineralizations retaining 3D structure as well as anatomical detail. Despite the importance of the flora for understanding angiosperm biogeographic and evolutionary history, the majority of the fossil material has not been revisited since the original taxonomic treatments by E.M. Reid and M.E.J. Chandler. Given subsequent advances in our understanding of angiosperm phylogeny and fruit morphology, coupled with technological advances in imaging/visualizing fossil material, many of the taxa represented in the flora deserve further study. Here we present a revision of the pantropical family Icacinaceae using X-ray micro-computed tomography (micro-CT) images of 21 species from the flora. Based on the results, four new combinations are made, a new fossil-genus is established for a distinctive species with affinities to the Phytocreneae, and emended diagnoses are provided for eight taxa. Of the seven genera recognized from the flora, only one, Iodes Blume, is extant. This study offers important insights on the biogeographic and evolutionary history of Icacinaceae, which is one of the most abundant and diverse components of the flora from the London Clay Formation.
FIGURE 2 in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 2. The best tree (lnL -8160.768319) from the ML analysis in RAxML (GTR+G) including support from the bootstrap. Only support of 50 percent and above is presented on the tree. The taxa previously included in the Mappia group are highlighted in blue.
FIGURE 1 in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 1. The single shortest tree (90 steps) recovered from the parsimony analysis of the morphological data. Bootstrap percentages are displayed for nodes that received at least 50.
FIGURE 5. Mappia mexicana. A in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 5. Mappia mexicana. A. Flowering branch and detail of a domatium in the abaxial surface of the leaves. B. Flower. C. Inside of petal. D. Floral dissection (petals removed) showing androecium and gynoecium. E. Gynoecium with ovary, minute style and disk.
FIGURE 6. Mappia multiflora. A in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 6. Mappia multiflora. A. Flowering branch and detail of domatia in the abaxial surface of leaves. B. Flower. C. Inside of petal. D. Floral dissection (petals removed) showing androecium and gynoecium. E. Gynoecium showing ovary, minute style and disk.
FIGURE 4 in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 4. Distribution map of the genus Mappia. Mappia longipes (․), M. mexicana (ˑ), M. multifolora (̝), and M. racemosa (●).
FIGURE 3 in Systematics of Mappia (Icacinaceae), an endemic genus of tropical America
FIGURE 3. One of four most parsimonious trees (1492 steps) recovered from the combined molecular-morphological phylogenetic analysis. Bootstrap values are listed for nodes that received at least 50 percent support in the bootstrap analysis. Taxa previously included in the Mappia complex are highlighted in blue.
FIGURE 2. A–E in Three decades to connect the sexes: Calatola microcarpa (Icacinaceae), a new species from the Southwestern Amazon
FIGURE 2. A–E. Female specimen of Calatola microcarpa Duno & J. Janovec. A) Floriferous female branch. B) Details of female inflorescence. C) Details of calyx and bract. D) Details of flower showing calyx, corolla and ovary. E) Details of flower showing the ovary and the stigma (L. Valenzuela 4202, CICY)
FIGURE 3 in Three decades to connect the sexes: Calatola microcarpa (Icacinaceae), a new species from the Southwestern Amazon
FIGURE 3. Fruits of Calatola costaricensis Standl. and Calatola microcarpa Duno & J. Janovec. A) Fruit of Calatola costaricensis with the exocarp and mesocarp removed, showing the main and secondary ribs (R. Duno s.n., CICY). B) Fruit of Calatola microcarpa
Patagonian_Icacinaceae
<p>This repo contains the Rproject with the data and code to generate the figures in Poore et al. 2023</p>
Data from: Revision of Icacinaceae from the Early Eocene London Clay flora based on X-ray micro-CT
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FIG. 2. — A-I in Icacinaceae fossil fruits from three sites of the Paris Basin (early Eocene, France): local diversity and global biogeographic implications
FIG. 2. — A-I, Iodes passiciensis Del Rio & De Franceschi, sp. nov. (MNHN.F.44736): A, lateral view of an endocarp showing the reticulum pattern of rounded and thin ridges; B, dorsal view showing the keel, surrounding the endocarp; C, lateral view of second face of the endocarp; D, basal view; E, apical view; F, magnification showing the pores abraded; G, SEM view of wall and ridges in transversal section; H, SEM view of rounded papillae; I, same with magnification. J-Q, Iodes reidae Del Rio, Thomas & De Franceschi (MNHN.F.44737): J, lateral view of endocarp showing the reticulum pattern of rounded ridges; K, dorsal view showing the keel, surrounding the endocarp; L, lateral view of second face of endocarp; M, basal view; N, apical view; O, magnification showing the areoles from the reticulation of ridges; P, SEM view of wall and ridges in transversal section; Q, SEM view of the trace left by the vascular bundle embedded in the endocarp wall. Scale bar: A-E, 5 mm; O-Q, 1 mm; J-N, 10 mm; G, 500 µm; F, 100 µm; H, 50 µm; I, 10 µm.
FIG. 1 in Icacinaceae fossil fruits from three sites of the Paris Basin (early Eocene, France): local diversity and global biogeographic implications
FIG. 1. — Geological map showing the locations of the five sites with Icacinaceae remains in the Paris Basin. Light Grey, Cenozoic; Grey, Upper Cretaceous; Dark grey, Lower Cretaceous. Modified from "Synthèse géologique du Bassin de Paris" (Mégnien 1980).
FIG. 5 in Icacinaceae fossil fruits from three sites of the Paris Basin (early Eocene, France): local diversity and global biogeographic implications
FIG. 5. — Icacinicaryites sp. (MNHN.F.44741): A, lateral view; B, dorsal view showing the keel; C, other lateral view; D, apical view; E, basal view. Scale bar: 5 mm.
FIG. 4. — A, B in Icacinaceae fossil fruits from three sites of the Paris Basin (early Eocene, France): local diversity and global biogeographic implications
FIG. 4. — A, B, Iodes sp. (MNHN.F.8100): A, lateral view of the endocast; B, vascular bundle embedded on the endocarp wall (arrow); C, Palaeophytocrene sp. (MNHN.F.8061), lateral view. Scale bars: A-C, 5 mm; B, 1 mm.
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