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45 results for “Podostemaceae”
Figs 3, 4 in Las Podostemaceae como hábitat para los macroinvertebrados en arroyos de Misiones (Argentina)
Figs 3, 4. Abundancia de las familias de macroinvertebrados hallados en los sitios estudiados en las distintas estaciones el año (V, verano; O, otoño; I, invierno; P, primavera). (GYR, Gyrinidae; ELM, Elmidae; CHI, Chironomidae; SIM, Simuliidae; LEP, Leptophlebiidae; CRA, Crambidae; COR, Corydalidae; LIB, Libellulidae; PLA, Planariidae; GRI, Gripopterygidae; PER, Perlidae; HYD, Hydrobiosidae; HYDR, Hydropsychidae; COR, Corbiculidae.
Fig. 2 in Las Podostemaceae como hábitat para los macroinvertebrados en arroyos de Misiones (Argentina)
Fig. 2. NMDS. Abundancia de las familias de macroinvertebrados en los distintos sitios muestreados y estaciones del año (P, primavera; V, verano; O, otoño; I, invierno).
Fig. 7. Saxicolella futa. A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 7. Saxicolella futa. A habit; B three flowering or fruiting ► shoots at root terminal-bifurcations; C, D undehisced spathellum with shoot and root; E flower, part emerged from spathellum; F flower in spathellum, gynoecium removed, showing tepals, gynophore and stamen; G gynoecium; H ovary wall in transverse section showing ribs; J variation in stigmata; K seed, hydrated; L reconstruction of complete flower (based on E – G). A from photo by cheek at chute de Sal'aa. B – D, G – F from Cheek 18979. (K); E & F from Cheek 18980 (K). DRAWN BY ANDREW BROWN.
Fig. 4. Saxicolella nana. A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 4. Saxicolella nana. A stem with two leafy shoots with spathellae; B placenta from fruit covered in seeds; C habit sketch showing disc-like root and centrally inserted leaf rosettes; D shoot with dehisced spathellum and flower at anthesis (right), detail of stamen (left); E dyad pollen grain; F flower showing pedicel, tepals and gynophore (stamen removed); G transverse section of ovary. All from Mildbraed 7749a (B). ALL DRAWN BY JOSEF POHL (original for illustration in the protologue, attached to the holotype B).
Fig. 6. Saxicolella deniseae. A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 6. Saxicolella deniseae. A habit; B distal portion of one root, with marginal sessile shoots; C detail of B showing the fruiting shoots; D unopened spathellum; E distal leaf rib; F shoot with opening spathellum; G & H shoots with flowers at anthesis; J & K fruit with persistent floral parts; L fruit with one valve removed showing seeds on the placenta; M fruit, transverse section. A from photo in habitat of and B – L from Molmou 1383. DRAWN BY ANDREW BROWN.
Fig. 2. Saxicolella ijim A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 2. Saxicolella ijim A habit, showing crustose, disc-like root with radiating marginal lobes and centrally originating aerial stems; B side-branch, fruiting; C axillary, fruiting shoot; D unopened spathellum; E flower at anthesis, partly concealed in spathellum; F & G flowers at anthesis; H fruiting shoot, one valve removed to show seeds on placenta; J transverse section of fruit, showing absence of commissural ribs. From Cheek et al. 9920 (K). DRAWN BY ANDREW BROWN.
Fig. 3. Saxicolella angola. A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 3. Saxicolella angola. A fruiting plant; B, C apices of two stems showing terminal clusters of leaves, spathellae and fruits; D flower, post-anthetic (anther empty); E two spathellae, one with dehisced fruit showing spindle-like placenta and a single seed attached; F transverse section of fruit (slightly distorted by compression). All from Gossweiler 9428 (holotype K). DRAWN BY ANDREW BROWN.
Fig. 5. Saxicolella marginalis. A in Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects
Fig. 5. Saxicolella marginalis. A habit, flowering plant; B detail of flowering rosette shoots; C flower inside spathellum before anthesis; D flower at anthesis, spathellum opened. From Keay in FHI 25152. DRAWN BY MARGARET STONES. Originally published in Taylor (1954) as Butumia marginalis G.Taylor © the estate of Margaret Stones.
Data from: Plastid phylogenomic analysis of Podostemaceae with an emphasis on Neotropical podostemoideae
<p>Podostemaceae are a clade of aquatic flowering plants that form important components of tropical river ecosystems. Species in the family exhibit highly derived growth forms and high vegetative phenotypic plasticity, both of which contribute to taxonomic confusion. The backbone phylogeny of the family remains poorly resolved, many species remain to be included in a molecular phylogenetic analysis, and the monophyly of many taxa remains to be tested. To address these issues, we assembled sequence data for 73 protein-coding plastid genes from 132 samples representing 68 species (~23% of described species) that span the breadth of most major taxonomic, morphological, and biogeographic groups of Podostemaceae. With these data, we conducted the first plastid phylogenomic analysis of the family with broad taxon sampling. These analyses resolved most nodes with high support, including relationships not recovered in previous analyses. No evidence of widespread, well-supported conflict among individual plastid genes and the concatenated phylogeny was observed. We present new evidence that four genera (<em>Apinagia</em>, <em>Marathrum</em>, <em>Oserya</em>, and <em>Podostemum</em>), as well as four species, are not monophyletic. In particular, we show that <em>Podostemum flagelliforme</em> should not be included in <em>Podostemum and is better recognized as Devillea flagelliformis, </em>and that <em>Marathrum capillaceum</em> is embedded within <em>Lophogyne </em>s.l.<em> </em>and should be recognized as <em>Lophogyne capillacea</em>. We also place a previously unsampled and undescribed species that likely represents a new genus. In contrast to previous studies, the neotropical genera <em>Diamantina</em>, <em>Ceratolacis</em>, <em>Cipoia,</em> and <em>Podostemum</em> are resolved as successive sister groups to a clade of all paleotropical Podostemoideae taxa sampled, suggesting a single dispersal event from the neotropics to the paleotropics in the history of the subfamily. These results provide a strong basis for improving the classification of Podostemaceae and a framework for future phylogenomic studies of the clade employing data from the nuclear genome.</p>
<em>Terniopsis chanthaburiensis</em> (Podostemaceae), a new record for China and its complete plastid genome
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Data from: Plastid phylogenomic analysis of Podostemaceae with an emphasis on Neotropical podostemoideae
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Data from: Molecular phylogeny of Terniopsis (Podostemaceae) and contrasting molecular and morphological variations in two species
Podostemaceae show different patterns of morphological variation relative to molecular ones between genera and between species, but additional material was necessary to make the patterns clearer. Using new material collected from Cambodia, we compared the variations of Terniopsis chanthaburiensis and T. heterostaminata in Cambodia, Laos and Thailand, and conducted matK phylogenetic analysis with many samples and most species of the genus. In contrast to the narrow molecular variation, the morphological variation (e.g., in the length of the shoots and pedicels) is large and continuous. The results indicate that variation in the two species is intraspecific. A similar pattern exists in two pairs of other species of Terniopsis, in which the morphological variation is large and discontinuous, while there is little molecular difference. The opposite pattern is present in other cases (e.g., Dalzellia zeylanica and Tristicha trifaria). The variation in T. chanthaburiensis and T. heterostaminata does not appear to be a response to variation in the habitats, that is submerged rock surfaces in fast currents. Distributional and phylogenetic data indicate that Terniopsis diversified primarily in Laos and Thailand, then expanded into neighboring regions. A synopsis of the genus Terniopsis and its 14 species is given.
FIGURE 5 in Apinagia brejoagrestinensis (Podostemaceae): a new rheophyte from the Atlantic Forest of northeastern Brazil
FIGURE 5. Apinagia brejoagrestinensis. Optical micrograph of the spathella and its unicellular trichomes. A. General view of the spathella and its unicellular trichomes. B. Detail of the unicellular trichomes on the spathella.
FIGURE 4 in Apinagia brejoagrestinensis (Podostemaceae): a new rheophyte from the Atlantic Forest of northeastern Brazil
FIGURE 4. Apinagia brejoagrestinensis. Type locality, life form, and close-up of the flowers. A. Reach of rapids where the species occur (white arrows). B Life form of the plant in the beginning of flowering, in the dry season. C. Close-up of the flowers in anthesis.
FIGURE 3. A–N in Apinagia brejoagrestinensis (Podostemaceae): a new rheophyte from the Atlantic Forest of northeastern Brazil
FIGURE 3. A–N. Apinagia brejoagrestinensis (based on the holotype and paratype). A. Stem flattened, flexuous, evidencing the leaves of fleshy base from which emerge the flowers. B. Detail of the dichotomously branched leaf. C. Detail of the leaf axil evidencing the flower buds. D. Flower bud at the moment of rupture of the spathella during the beginning of the anthesis. E. Enlarged detail of the spathella trichomes. F. Fleshy base of the leaves showing developed flowers. G. External view of the flower in anthesis. H. Internal view of the flower in anthesis. J. Tepals. K. Enlarged detail of the tepal trichomes. L. Stamens of oblong anthers. M. Developed capsule. N. Dehiscent capsule, showing two persistent valves.
FIGURE 1 in Apinagia brejoagrestinensis (Podostemaceae): a new rheophyte from the Atlantic Forest of northeastern Brazil
FIGURE 1. Distribution of Apinagia brejoagrestinensis. A. South America highlighting (square) the northeast of Brazil. B. Northeastern Brazil, highlighting the Borborema Plateau (striped area) and municipality of Agrestina, near the locality of A. brejoagrestinensis (●). C. Riacho Mentirosos, locality of the new species and municipality of Agrestina (●).
FIGURE. 3. A–F. Cladopus yinggelingensis. A. Roots. B. Flowering shoots. C. Fruiting shoots. D in Two new species of Podostemaceae from the Yinggeling National Nature Reserve, Hainan, China
FIGURE. 3. A–F. Cladopus yinggelingensis. A. Roots. B. Flowering shoots. C. Fruiting shoots. D. tufts of leaves. E. bubbles covering the anthers and stigmas. F. Pollens. G–L. T. daoyinensis. G. Roots with flowering shoots. H. Flowers with unopened stamens. I. Flowers with withered stamens and mature stigmas. J. flowering shoots and vegetative ramuli. K. Fruits. L. Pollen.
FIGURE. 2. A–H. T in Two new species of Podostemaceae from the Yinggeling National Nature Reserve, Hainan, China
FIGURE. 2. A–H. T. daoyinensis (From the holotype). A. & B. Roots with young shoots. C. Flower with vegetative ramuli. D. Flower with 3 stamens and immature stigmas. E. Flower with stamens and mature stigmas. F. Flower with withered stamens and mature stigmas. G. Fruit. H. Ovule.
FIGURE. 1. A–L in Two new species of Podostemaceae from the Yinggeling National Nature Reserve, Hainan, China
FIGURE. 1. A–L. Cladopus yinggelingensis (From the holotype and field images). A. Roots. B. Floriferous shoot with young flower enclosed by Spathella. C. & D. Flowering shoots. E. & F. Bracts. G. Spathella. H. Ovary with ovules. I. Flower. J. Stamens with 2 tepals. K. Stigmas. L. Fruiting shoot.
FIGURE 3 in Contributions to the taxonomy of Rhyncholacis (Podostemaceae): Evidence of monophyly, description of a new species, and transfer of the monotypic Macarenia
FIGURE 3. Habitat and leaves of Rhyncholacis paulana. A. The small river (Igarapé do Torrão) where the species occurs showing the disturbed nature of the habitat, new bridge (BR 156) in background and foundation of old bridge in foreground. Died-back plants of R. paulana are evident along margins of river. B. Three complete leaves of R. paulana; upper and lower leaves are mature, small middle leaf is immature (scale = 5 cm).
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.