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43 results for “Spermacoceae”
Fig. 1. Psyllocarpus itakangapyra Sobrado, J.A.M.Carmo & R.M in Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil
Fig. 1. Psyllocarpus itakangapyra Sobrado, J.A.M.Carmo & R.M.Salas sp. nov.; P.L. Viana et al. 4415 (CTES). A. Branch portion. B. Inflorescences at the apex of flowering branches. C. Detail of an inflorescence. D. Stipular sheath. E. Preanthetic flower bud. F. Flower. G. Hypanthium, calyx, style, and stigma. H. Opened corolla. I–M. Fruit. I. Dehiscent capsule, lateral view. J. Septum. K. Valve, seed, and septum, cross section. L. Valve, dorsal view. M. Valve, ventral view. N–O. Seed. N. Dorsal view. O. Ventral view. Illustration: L. Simón.
Linked collectors and determiners for: Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil.
Natural history specimen data linked to collectors and determiners held within, "Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0ab190d4-61ee-4225-a234-7f64cc916948">https://bionomia.net/dataset/0ab190d4-61ee-4225-a234-7f64cc916948</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0ab190d4-61ee-4225-a234-7f64cc916948">https://gbif.org/dataset/0ab190d4-61ee-4225-a234-7f64cc916948</a>. Formatted as a Frictionless Data package.
Data from: Evolution of woody life form on tropical mountains in the tribe Spermacoceae (Rubiaceae)
Spermacoceae are mainly an herbaceous group in the Rubiaceae. However, a few lineages are woody, and are found in a diverse range of habitat types. Three of the largest woody lineages (Arcytophyllum, Hedyotis, and Kadua) are characterized by their distribution in the moist tropical mountains, and have disjunct distribution patterns with respect to their closest relatives. In this study, we explore the cases of derived woodiness in these three lineages and their diversification dynamics in the tropical mountains of Asia, the Pacific, and the Americas. By combining phylogenetic results with wood anatomical studies, we estimated timing of origin of the three woody groups, inferred their ancestral traits and ancestral distribution ranges, analyzed their associations with the tropical upland habitat, and elucidated their diversification across tropical mountains. The three woody clades originated and diversified from herbaceous ancestors in close association with the tropical upland habitat during the Miocene. The ancestral range for Asian-Pacific Hedyotis and Pacific Kadua is Africa/Madagascar and continental Asia respectively. The complex geological history of tropical Asia allowed Hedyotis to diversify faster and create narrow endemics near oceans in the highlands of Western Ghats (India), Sri Lanka, Southeast Asia including southeastern China, and New Guinea. The three major woody clades in Spermacoceae have gained their woodiness independently from one another, subsequent to colonization by their ancestors from a different geographic environment. The evolution and diversification along the tropical mountain orogeny is strongly linked with the formation of woody habit and many narrow endemic species.
FIGURE 1. Galianthe longifolia. A. Habit. B. Stipular sheath. C–E. Long-styled flower. C. Flower. D in Advancements in Galianthe (Spermacoceae-Rubiaceae) knowledge: complete description of G. longifolia and new records for G. thalictroides in Mato Grosso do Sul, Brazil
FIGURE 1. Galianthe longifolia. A. Habit. B. Stipular sheath. C–E. Long-styled flower. C. Flower. D. Hypanthium, calyx, style, and stigma. E. Opened corolla. F–H. Short-styled flower. F. Flower. G. Hypanthium, calyx, style, and stigma. H. Opened corolla. I–K. Seed. I. Seed, dorsal view. J. Seed, ventral view. K. Seed, cross section. L. Fruit. A–H extracted from Cabral (2009), I–L de Cordeiro C.B. 1969 (C). Ilustrated by L. Simón
FIGURE 3 in Advancements in Galianthe (Spermacoceae-Rubiaceae) knowledge: complete description of G. longifolia and new records for G. thalictroides in Mato Grosso do Sul, Brazil
FIGURE 3. Distribution map of Galianthe species. A. Galianthe longifolia (red circles). B. G. thalictroides (yellow circles), blue dotted lines indicate new records.
FIGURE 2. Borreria psyllocarpoides. A. Habit. B. Stipular sheath. C. Flower. D. Corolla, inner view. E in Two new species of Borreria (Spermacoceae, Rubiaceae) from the states of Goiás and Minas Gerais, Brazil
FIGURE 2. Borreria psyllocarpoides. A. Habit. B. Stipular sheath. C. Flower. D. Corolla, inner view. E. Calyx, style and stigma. F. Fruit. G. Dehiscent cocci. H. Seed, dorsal view. I. Seed, ventral view.
FIGURE 4 in Two new species of Borreria (Spermacoceae, Rubiaceae) from the states of Goiás and Minas Gerais, Brazil
FIGURE 4. Electronical microphotographs of pollen grain. A–B. Borreria minensis. A. Pollen grain. B. Detail of ectoaperture and exine. C–D. Borreria psyllocarpoides. C. Pollen grain. D. Detail of ectoaperture and exine. (Scale bars: A and C = 5 μm; B and D = 2 μm)
FIGURE 1. Borreria minensis. A. Habit. B. Stipular sheath. C. Flower. D. Corolla, inner view. E in Two new species of Borreria (Spermacoceae, Rubiaceae) from the states of Goiás and Minas Gerais, Brazil
FIGURE 1. Borreria minensis. A. Habit. B. Stipular sheath. C. Flower. D. Corolla, inner view. E. Calyx, style and stigma. F. Fruit. G. Seed, dorsal view. H. Seed, ventral view.
FIGURE 2. Oldenlandia vasudevanii A. Habit B. A in Oldenlandia vasudevanii (Spermacoceae, Rubiaceae) a new species from the Southern Western Ghats, India
FIGURE 2. Oldenlandia vasudevanii A. Habit B. A portion of flowering twig C. Stipule D. Corolla E. Single flower F. Calyx lobes G. Three accessory calyx teeth H. Corolla tube cut opened showing stamens I. Flower LS J. Capsule (Photos: Soumya M. & Maya C. Nair based on Soumya M. & Maya C. Nair 1018)
FIGURE 1. Oldenlandia vasudevanii A. Habit B. A in Oldenlandia vasudevanii (Spermacoceae, Rubiaceae) a new species from the Southern Western Ghats, India
FIGURE 1. Oldenlandia vasudevanii A. Habit B. A portion of flowering twig C. Single flower D. Stipule E. Calyx lobes F. Three accessory calyx teeth G. Corolla tube cut opened showing stamens H. Stamen I. Style with stigma J. Ovary CS K. Flower LS L. Capsule M. Seed. (Drawings by Soumya. M based on Soumya. M & Maya C. Nair 1018)
FIGURE 3. Bayesian 50 in Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China
FIGURE 3. Bayesian 50% majority-rule consensus tree derived from a simultaneous analysis of ITS and petD, with posterior probability (PP≥0.5) displayed on the branches.
FIGURE 1. Dimetia brevipetiolata R. J in Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China
FIGURE 1. Dimetia brevipetiolata R. J. Wang, sp. nov. A: Habit, B: Branchlet, C: Inflorescence, D: Long-styled flower, E: short-styled flower, F: Leaf blade, G: Stipule shape, H: Infructescence, I: Capsule, J: Seeds (Photos by Rui-Jiang Wang & Guo-Bin Jiang).
FIGURE 2 in Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China
FIGURE 2. Micromorphology of Dimetia brevipetiolata R. J. Wang, sp. nov. A–C: Pollen morphology of long-styled flowers (from Rui-Jiang Wang & Shu-Jun Deng 2304, IBSC), D–F: Pollen morphology of short-styled flowers (from Rui-Jiang Wang & Shu-Jun Deng 2305, IBSC).
FIGURE 3. Borreria savannicola. A. Floral branch. B. Stipular sheath. C. Flower. D. Opened corolla. E in Borreria savannicola (Spermacoceae, Rubiaceae), a new species from savanna patches within the Caatinga, Ceará State, Brazil
FIGURE 3. Borreria savannicola. A. Floral branch. B. Stipular sheath. C. Flower. D. Opened corolla. E. Hypanthium, calyx, style, and stigma. F. Capsule. G. Seed in ventral view. H. Seed in dorsal view. Illustration: L. Simón.
FIGURE 2. Borreria savannicola. A in Borreria savannicola (Spermacoceae, Rubiaceae), a new species from savanna patches within the Caatinga, Ceará State, Brazil
FIGURE 2. Borreria savannicola. A. Vegetation of the locality. B. Stipule. C. Branch with glomerule and stipule. D.–E. Detail of the glomerule and insect landing on the glomerule. F. Glomerule with fruits, view from below. G. Glomerule with fruits, view from above. Photos: E.B. Souza.
FIGURE 5 in Borreria savannicola (Spermacoceae, Rubiaceae), a new species from savanna patches within the Caatinga, Ceará State, Brazil
FIGURE 5. Anatomical features. Stem: A–C. Borreria savannicola. A. Showing stomata. B. Lamellar collenchyma. C. Vascular system respectively. D–F. Borreria scabiosoides. D. Stipular colleter showing raphides. E. Stem with angular collenchyma. F. Vascular system with cambium. Leaf blade: G–J. Borreria savannicola. G. Shows the midrib. H. Papillae. I. Phenolic idioblasts. J. Stomata. L–O. Borreria scabiosoides. L. Showing the midrib. M. The stomata and substomatic chambers. N. The spongy parenchyma with braciform cells. Arrow = raphides, LC = lamellar collenchyma, AC = angular collenchyma, PH = phloem and XY = xylem, Bar = 100µm in A, B, D and E, 200 µm in C, F and O and 400 µm in G, H and I.
Data from: Evolution of woody life form on tropical mountains in the tribe Spermacoceae (Rubiaceae)
Open the record for dataset details and reuse information.
Fig. 6 in Description of 11 new Astiella (Spermacoceae, Rubiaceae) species endemic to Madagascar
Fig. 6. Astiella confusa Groeninckx sp. nov. A. Habit. B. Brevistylous flower. C. Open brevistylous flower. D. Ovary dissected to show placentation. E. Capsule. Drawn by Marijke Meersman. All from Humbert 20713 (BR).
Fig. 2. Distribution maps. A in Description of 11 new Astiella (Spermacoceae, Rubiaceae) species endemic to Madagascar
Fig. 2. Distribution maps. A. Astiella antongilensis Groeninckx sp. nov. B. A. antsalovansis Groeninckx sp. nov. C. A. confusa Groeninckx sp. nov. D. A. deblockiae Groeninckx sp. nov. E. A. delicatula Jovet. F. A. desseinii Groeninckx sp. nov. G. A. homolleae Groeninckx sp. nov. H. A. latifolia Groeninckx sp. nov. I. A. longifimbria Groeninckx sp. nov. J. A. perrieri Groeninckx sp. nov. K. A. pulla Groeninckx sp. nov. L. A. tsaratanensis Groeninckx sp. nov.
FIGURE 5 in Two new species of Borreria (Spermacoceae, Rubiaceae) from the states of Goiás and Minas Gerais, Brazil
FIGURE 5. Geographic distribution of Borreria minensis and Borreria psyllocarpoides.
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