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11 results for “Stigmatodon”
Molecular Phylogenetics and Trait Evolution in Stigmatodon (Bromeliaceae, Tillandsioideae), an Endemic Genus to Brazilian Rocky Outcrops
<p><strong><em>Abstract</em></strong>—The genus <em>Stigmatodon</em> occurs in steep granite slopes, typical of the inselbergs from the Brazilian Atlantic Forest. Here, we present the first broad phylogenetic analysis focused on <em>Stigmatodon</em>, sampling a total of 83 terminals, including 16 of the 20 species of the genus and the morphologically similar species of <em>Vriesea</em>. We conducted a phylogenetic analysis using two plastid markers (<em>matK </em>and <em>rps16-trnK</em>) and the nuclear gene <em>PHYC</em> to infer phylogenetic relationships and reconstruct ancestral states for ecological and morphological characters. Our results suggest the monophyly of <em>Stigmatodon</em> as originally circumscribed is only possible with the inclusion of morphologically and ecologically similar <em>Vriesea</em> species. In addition, the morphological and anatomical traits led us to propose a new circumscription for the genus, combining eight species of <em>Vriesea </em>to <em>Stigmatodon</em>. The stomata positioned above the ordinary epidermal cells, the adaxial water-storage parenchyma with axially elongated cells, the stamens positioned in two groups of three on each side of the corolla and the tubo-laciniate stigma are exclusive to <em>Stigmatodon</em> in its new circumscription. This new morphological and phylogenetic results constitute a relevant contribution to the taxonomy and evolution of Bromeliaceae, one of the most diverse and ecologically important families of flowering plants of the Neotropics.</p>
Data from: Morphological and genetic evidence for the Stigmatodon goniorachis complex (Tillandsioideae, Bromeliaceae) reveals a new species on inselbergs in the Brazilian Atlantic Forest
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FIGURE 2. A–D in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 2. A–D. Convolute blade type III (stigmadontoid type). A. Stigmatodon andaraiensis (Leme 8459). B–C. S. limae (Leme 4653) in different stages of development. D. S. zonatus (Leme 6626). E–H. Convolute blade type II (vrieseoid type). E. S. vellozicolus (Leme 1113). F. S. freicanecanus (Leme 4654). G. S. oliganthus (Leme 9226). H. S. vexatus (Leme 8704). Photos by E. Leme. Bars: = 2 mm.
FIGURE 7. Stigmatodon vexatus. A in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 7. Stigmatodon vexatus. A. Group of plants at the type locality. B–C. Habit. D. Lateral view of the flower. E. Frontal view of the flower. Photos by E. Leme.
FIGURE 3. A–C. Convolute blade type I in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 3. A–C. Convolute blade type I (guzmanioid type). A. Guzmania acorifolia (Leme 588). B. Guzmania sp. (Leme 4061). C. G. vittata (Leme 431). D–P. Convolute blade type II (vrieseoid type). D. Vriesea gigantea (Leme 5128). E. V. amethystina (Leme 2680). F. V. carinata (Leme 4431). G. V. eltoniana (Leme 5160). H. V. ensiformis var. bicolor (Leme 1333). I. V. flammea (Leme 9857). J. V. sparsiflora (Leme 2291). K. V. garlippiana (Leme 3582). L. V. exaltata (Leme 502-A). M. V. roethii (Leme 2667). N. V. hydrophora (Leme 2237). O. V. morrenii (Leme 8666). P. V. fosteriana (Leme 4885). Photos by E. Leme. Bars: = 2 mm.
FIGURE 5. Stigmatodon itamarajuensis. A in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 5. Stigmatodon itamarajuensis. A. General view of the landscape at the type locality with Monte Pescoço on the left side. B. Close up of Monte Pescoço. C–D. Population near the base of Monte Pescoço. E. Habit. F. Distal portion of the inflorescence and lateral view of the flower. G. Details of the propagation by short basal shoots. H. Details of the stamens. I. Frontal view of the flower (A–D, F, H, I, photos E. Leme; E, G, photos by D.R. Couto).
FIGURE 4. Stigmatodon ilhanus. A in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 4. Stigmatodon ilhanus. A. General view of the landscape at the type locality. B. Inselberg where S. ilhanus was collected. C. The climber Andre Ilha collecting the new species. D. Details of the population at the type locality. E. Habit. F. Lateral view of the flower. G. Frontal view of the flower (A, B & D, photos by A. Ilha; C, photo by M. Freitas; E–G, photos by E. Leme).
FIGURE 2. Stigmatodon enigmaticus. A. Habit. B. Leaf. C. Peduncle bract. D. Floral bract, adaxial surface. E. Floral bract, abaxial surface. F. Flower. G. Sepal. H in Stigmatodon enigmaticus (Bromeliaceae, Tillandsioideae), a new lithophytic species from the Campos Rupestres within the Brazilian Atlantic Forest
FIGURE 2. Stigmatodon enigmaticus. A. Habit. B. Leaf. C. Peduncle bract. D. Floral bract, adaxial surface. E. Floral bract, abaxial surface. F. Flower. G. Sepal. H. Petals, stamens and appendages at the base. I. Details of basal petal appendages. J. Filament and anther. K. Pistil. Drawing by Joelcio Freitas based on the holotype P.M. Gonella 2965 (MBML).
FIGURE 1. Stigmatodon enigmaticus. A in Stigmatodon enigmaticus (Bromeliaceae, Tillandsioideae), a new lithophytic species from the Campos Rupestres within the Brazilian Atlantic Forest
FIGURE 1. Stigmatodon enigmaticus. A. General view of the landscape of campos rupestres and forests at type locality at Serra do Pinh"o, part of Serra do Padre Ângelo (Conselheiro Pena, MG). B. Quartzitic rocky outcrops, habitat of S. enigmaticus. C. Habit of S. enigmaticus. D. Flowering specimen of S. enigmaticus (specimen Couto et al. 6625, paratype). E. Detail of leaves and bracts of the base of the inflorescence. F. Side view of the inflorescence of a cultivated specimen (specimen Gonella et al. 2965, holotype), showing the red bracts and yellow perianth. G. Lateral view of the flower. H. Front view of the flower, showing the position of stamens and stigma. (Photos: A–C, E, G, H by PMG; F by DRC; D by Lucian Medeiros).
FIGURE 6. Stigmatodon viridibracteatus. A in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 6. Stigmatodon viridibracteatus. A. General view of the inselberg landscape at the type locality. B. Population on vertical rock wall at the type locality. C–D. Habit. E. Lateral view of the flower. F. Frontal view of the flower. G. Details of the tubo-laciniate stigma (photos by D.R. Couto).
FIGURE 1. A–I. Tubo-laciniate stigma type I. A in Novelties in Stigmatodon (Bromeliaceae, Tillandsioideae), a genus endemic to Brazil: three new species, one new combination, and two new stigma types
FIGURE 1. A–I. Tubo-laciniate stigma type I. A. Stigmatodon amadoi (Leme 5953). B. S. apparicianus (Leme 7379). C. S. bifidus (Leme 7368). D–E. S. aff. brassicoides (Leme 6991). D. Side view. E. Front view. F. S. funebris (Leme 7876). G. S. gastinianus (Leme 9013). H. S. magnibracteatus (Leme 7357). I. Stigmadoton sp. (Leme 8021). J–N. Tubo-laciniate stigma type II. J–K. S. ilhanus (Leme 8997). J. Side view. K. Front view. L. S. plurifolius (Leme 6997). M–N. S. rosulatulus (Leme 8621) in different stages of development. Photos by E. Leme. Bars: = 2 mm.
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