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37 results for “Coreopsideae”
The Genome Project of Trib. Coreopsideae Plants
<p>This project aims to construct the reference genomes of three plants from Trib. Coreopsideae in Asteraceae, including Dahlia pinnata, Cosmos bipinnata and Bidens alba.</p>
FIGURE 2. A–B. Coreopsis bakeri. A. Habitat, with blooming plants. B in Coreopsis bakeri (Asteraceae; Coreopsideae), a new species from Florida, USA
FIGURE 2. A–B. Coreopsis bakeri. A. Habitat, with blooming plants. B. Plants in bloom, showing substrate with exposed bare rock. Photographs taken by A. Johnson.
FIGURE 3 in Coreopsis bakeri (Asteraceae; Coreopsideae), a new species from Florida, USA
FIGURE 3. Map showing locations of the nine known populations of Coreopsis bakeri in Jackson Co., northern Florida, USA.
FIGURE 4 in Dahlia tamaulipana (Asteraceae, Coreopsideae), a new species from the Sierra Madre Oriental biogeographic province in Mexico
FIGURE 4. Floral diversity of the genus Dahlia in the Sierra Madre Oriental biogeographic province and surrounding areas in Mexico. A. D. australis (Sherff) P.D. Sørensen. B–C. D. coccinea Cav. D. D. cuspidata Saar, P.D. Sørensen & Hjert. E. D. dissecta S. Watson. F. D. linearis Sherff. G. D. merckii Lehm. H. D. mollis P.D. Sørensen. I. D. neglecta Saar. J. D. scapigera (A. Dietr.) Knowles & Westc. K. D. scapigeroides Sherff. L. D. spectabilis Saar & P.D. Sørensen. M. D. tamaulipana Reyes, Islas & Art. Castro. N. D. tenuicaulis P.D. Sørensen. O. D. tubulata P.D. Sørensen. Photographs: Aarón Rodríguez (A, D–K), Arturo Castro-Castro (B–C, N, O), Arturo Mora Olivo (M) and José Arturo de Nova Vázquez (L).
FIGURE 3. Mitotic metaphase I in Dahlia tamaulipana (Asteraceae, Coreopsideae), a new species from the Sierra Madre Oriental biogeographic province in Mexico
FIGURE 3. Mitotic metaphase I cell from root apical meristems of Dahlia tamaulipana Reyes, Islas & Art. Castro (2n= 2x= 32).
FIGURE 1 in Dahlia tamaulipana (Asteraceae, Coreopsideae), a new species from the Sierra Madre Oriental biogeographic province in Mexico
FIGURE 1. Dahlia tamaulipana Reyes, Islas & Art. Castro. A. Habit. B. Rhizome and tuberous roots. C. Detail of stem transversal cut and node. D. Leaf upper surface. E. Lateral view of a head and involucre. F. Front view of a head. G. Ray. H. Disc florets variations. I. Gynoecium and androecium details. J. Lateral view of a mature head. K. Dorsal and ventral view of cipsela. Illustrated by Silvia Saucedo Heredia "Canela", based on type material.
FIGURE 2 in Dahlia tamaulipana (Asteraceae, Coreopsideae), a new species from the Sierra Madre Oriental biogeographic province in Mexico
FIGURE 2. Distribution map of the genus Dahlia in the Sierra Madre Oriental (SMOR) biogeographic province, Mexico. Ecological regionalization according to Morrone et al. (2017). A. Distribution detail of Dahlia in SMOR, except for D. coccinea. B. Distribution of D. coccinea in SMOR. C. Distribution detail of D. tamaulipana in the municipalities of Tamaulipas.
FIGURE 7 in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 7. Distribution of Heterosperma mexicanum: H. mexicanum var. mexicanum (squares), H. mexicanum var. pinnatisectum (triangles).
FIGURE 4 in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 4. Geographic distribution of Heterosperma Group A (red circles) and Group B (violet circles).
FIGURE 3 in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 3. Floral trichomes (SEM; A–E). Henricksonia mexicana, A. Disc florets with moniliform trichomes. Electranthera mutica, B. Disc florets with long glandular trichomes. Coreopsis cyclocarpa, C. Ray florets with short glandular trichomes and filiform trichomes. D. Disc florets with conical trichomes. Heterosperma sphatulatum, E. Ray florets with short glandular trichomes. [A. from Henrickson 15350. B. from Cronquist 10404. C−D. from Carman 68–120. E. from Sodiro 480]. Scale bars: A, B = 50 μm; C = 100 μm; D−E= 25 μm
FIGURE 2 in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 2. Maximum clade-credibility tree of combined matrix (ITS + trnL-trnF). Vouchers sequenced for this study are denoted by asterisks. Number above and below branches indicate Bayesian posterior probabilities (PP) and parsimony bootstrap values (BS), respectively. The shapes of the cypselae are shown for representatives of the different groups, indicated by arrows.
FIGURE 1 in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 1. Parsimony strict consensus tree of: A, trnL-trnF and B, ITS. The position of Heterosperma is indicated with a black bar. Vouchers sequenced for this study are denoted by asterisks. Number above and below branches indicate Bayesian posterior probabilities (PP) and parsimony bootstrap values (BS), respectively.
FIGURE 5. Heterosperma. A−F. H. nanum. A−B. Habit. C. Floriferous stems. D. Capitulum showing ray and disc florets. E. Capitulum showing inner and outer phyllaries. F. Capitulum showing cypselae. G−H. H. ovatifolium. G. Capitulum showing maturate cypselae. H in Testing the monophyly of Heterosperma (Asteraceae, Coreopsideae)
FIGURE 5. Heterosperma. A−F. H. nanum. A−B. Habit. C. Floriferous stems. D. Capitulum showing ray and disc florets. E. Capitulum showing inner and outer phyllaries. F. Capitulum showing cypselae. G−H. H. ovatifolium. G. Capitulum showing maturate cypselae. H. Habit [B. from Lizarazu & Satto 125 (SI). C. from Lizarazu & Satto 142 (SI). G−H. from Lizarazu 87 (SI). F. from Zuloaga et al 14207 (SI), and D−E, from Zanotti et al. 863 (SI)]. Photo credit: Lizarazu 2017 (A−C, G−H), Zuloaga 2013 (F), and Zanotti 2016 (D−E).
FIGURE 2 in A new species of Dahlia (Asteraceae, Coreopsideae) from the state of Oaxaca, Mexico
FIGURE 2. Floral characters of Dahlia calzadana. A. Papillae on the petals surface of disc florets. B. Glandular trichomes on the corollae tube of ray florets. C. Anthers apical appendices. D. Branch of stigma of a disc floret.
FIGURE 4 in Dahlia mixtecana (Asteraceae, Coreopsideae), a striking new species from Oaxaca, Mexico
FIGURE 4. Dahlia mixtecana Reyes, Islas & Art. Castro. A–B. Habitat and habit. C. Detail of tuberous rootstock. D. Leaves. E–F. Front and lateral view of a head and involucre. Photographs: Jerónimo Reyes Santiago.
FIGURE 3 in Dahlia mixtecana (Asteraceae, Coreopsideae), a striking new species from Oaxaca, Mexico
FIGURE 3. Dahlia mixtecana Reyes, Islas & Art. Castro. A. Habit. B. Detail of tuberous rootstock. C. Detail of the leaf. D. Front and lateral view of a head and involucre. E. Stem section with a node. F. Ray florets. G. Palea. H. Disk florets. I. Gynoecium and androecium details. J. Variations in cypselae. Illustrated by Omar González Zorzano, based on type material.
FIGURE 1. A in Dahlia mixtecana (Asteraceae, Coreopsideae), a striking new species from Oaxaca, Mexico
FIGURE 1. A sample of the floral diversity of the genus Dahlia in Oaxaca, Mexico. A. D. apiculata (Sherff) P.D. Sørensen. B. D. australis (Sherff) P.D. Sørensen. C. D. calzadana Villaseñor & Redonda-Mart. D. D. campanulata Saar, P.D. SØrensen & Hjert. E–F. D. coccinea Cav. G. D. imperialis Roezl ex Ortgies. H. D. macdougallii Sherff. I. D. pteropoda Sherff. J. D. sorensenii H.V. Hansen & Hjert. K. D. tenuicaulis P.D. Sørensen. L. D. tenuis B.L. Rob. & Greenm. Photographs: Aarón Rodríguez (E, K–L), Arturo Castro-Castro (J) and Jerónimo Reyes Santiago (A–D, F–I).
Data from: An unusual new species of Bidens (Asteraceae, Coreopsideae) with its phylogenetic position and taxonomic notes
An unusual new species of Bidens (Asteraceae) from Brazil is described and its placement within the genus is elucidated by phylogenetic analysis of ITS sequences. The new species, described as Bidens campanulata , is distinct in the genus based on its broadly campanulate corolla limb with long lobes, an extremely reduced involucre (shorter than the flower length), and the absence of awns on the pappus. This study presents a taxonomic treatment of the species of Bidens with discoid capitula endemic to the Brazilian Cerrado, including a key to the species, typification, and information on conservation status.
FIGURE 1. Cosmos pseudoperfoliatus Art. Castro, M. Harker et Aaron Rodr. A. Habit with a in Two new species of Cosmos section Discopoda (Coreopsideae: Asteraceae) from Jalisco, Mexico
FIGURE 1. Cosmos pseudoperfoliatus Art. Castro, M. Harker et Aaron Rodr. A. Habit with a detail of stem pubescence. B. Rhizome and tuberous roots. C. Leaf shape variation. D. Head, front view. E. Head, lateral view with phyllaries. F. Ray floret with tube details. G. Disk florets and palea. H. Style and stigma details. I. Anthers and pubescent filaments. J. Tuberculate achenes, dorsal and lateral view. Illustrated by Oswaldo Zuno Delgadillo based on M. Harker et al. 4189 (IBUG holotype).
FIGURE 3. Cosmos ramirezianus Art. Castro, M. Harker et Aaron Rodr. A. Habit. B. Rhizome and tuberous roots. C. Leaf and margin details. D. Synflorescence. E. Head, front view. F. Head, lateral view. G. Ray floret and tube details. H in Two new species of Cosmos section Discopoda (Coreopsideae: Asteraceae) from Jalisco, Mexico
FIGURE 3. Cosmos ramirezianus Art. Castro, M. Harker et Aaron Rodr. A. Habit. B. Rhizome and tuberous roots. C. Leaf and margin details. D. Synflorescence. E. Head, front view. F. Head, lateral view. G. Ray floret and tube details. H. Disk florets, anthers, style and stigma details. I. Heads in fruit with persistent paleae. J. Achenes, lateral and dorsal views. A–C, I and J from A. Castro- Castro et al. 2916 (IBUG); D–H from A. Frías & L. M. González-Villarreal 1864 (IBUG). Illustrated by Oswaldo Zuno Delgadillo.
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