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12 results for “limestone flora”
Text-fig. 1. A. Location of the sites of Capo di Fiume, Palena and Pollenzo near Alba. B. Capo di Fiume stratigraphic section. Facies of coastal-transitional marine associations – a. Freshwater marsh and tidal creeks interval, b. Swamp interval, c1–c4. Facies of eustarine bay associations, d1–d6. Facies of open shelf marine associations. Symbols: "black star" – fossiliferous horizon with plant material studied here, 1. mottled grey to dark-brown marls and clayey marls, 2. fissile dark-grey marls and shaly marls, 3. limestones, 4. marly limestones and limey marls, 5. bio-lithoclastic calcarenites, 6. lime conglomerate, 7. massive muddy deposit produced by mass-flow mechanism, 8. diatomitic marls, 9. "terra rossa" soil (modified after Carnevale et al. 2011). in Feather Palm Foliage From The Messinian Of Italy (Capo Di Fiume, Palena And Pollenzo Near Alba) Within The Framework Of Northern Mediterranean Late Miocene Flora
Text-fig. 1. A. Location of the sites of Capo di Fiume, Palena and Pollenzo near Alba. B. Capo di Fiume stratigraphic section. Facies of coastal-transitional marine associations – a. Freshwater marsh and tidal creeks interval, b. Swamp interval, c1–c4. Facies of eustarine bay associations, d1–d6. Facies of open shelf marine associations. Symbols: "black star" – fossiliferous horizon with plant material studied here, 1. mottled grey to dark-brown marls and clayey marls, 2. fissile dark-grey marls and shaly marls, 3. limestones, 4. marly limestones and limey marls, 5. bio-lithoclastic calcarenites, 6. lime conglomerate, 7. massive muddy deposit produced by mass-flow mechanism, 8. diatomitic marls, 9. "terra rossa" soil (modified after Carnevale et al. 2011).
FIGURE 5 in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 5. Island of New Guinea. A, Muller Range, Bivouac 2, type locality for Psychotria stolonifera and P. ternatifolia. Shaded circle for visual emphasis only (not indicative of observed or potential distribution).
FIGURE 1. Psychotria stolonifera. A, forming a in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 1. Psychotria stolonifera. A, forming a dense groundcover on limestone karst, stems 15–20 cm tall (Takeuchi et al. 24618A); B, blue scale bar with white lines marked in 1 cm increments.
FIGURE 8. Psychotria ternatifolia. A in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 8. Psychotria ternatifolia. A, fruiting branchlets, drupes immature; B, pyrene (9 × 8 mm, shown inverted), adaxial surface with germination slits on margins; C, pyrene, ridged abaxial surface. A–C from Takeuchi et al. 24621.
FIGURE 4. Psychotria stolonifera. A in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 4. Psychotria stolonifera. A, long-styled flowers with stigma exserted; B, short-styled flowers with anthers exserted; C, developing (immature) fruits; D, ripe drupes; E, pyrene (6 × 4 mm), adaxial surface with preformed germination slits on margins. A from Takeuchi et al. 24691; B–C from Takeuchi et al. 24683; D–E from Takeuchi et al. 24618A.
FIGURE 2. Psychotria stolonifera. A in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 2. Psychotria stolonifera. A, uprooted plants, showing runner-like shoots with adventitious roots and erect stalks (Takeuchi et al. 24707).
FIGURE 6. Psychotria ternatifolia. Habit, 1.5–2.0 m in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 6. Psychotria ternatifolia. Habit, 1.5–2.0 m shrub in limestone forest (Takeuchi et al. 24716).
FIGURE 7. Psychotria ternatifolia. A in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 7. Psychotria ternatifolia. A, cylindrical stipule and two developing leaf whorls; B, stipule at lower node, basal part of cylinder persisting. A–B from Takeuchi et al. 24716.
Immigration dynamics of tropical and subtropical Southeast Asian limestone karst floras
<p><i>Ex situ </i>origins and dispersal of taxa have played important roles in the assembly of island-like biodiversity hotspots. Insular limestone karsts in Southeast Asia are hotspots of biodiversity and endemism, but the immigration processes of their unique floras are still poorly known. Here, we used Gesneriaceae as a proxy to investigate immigration dynamics of tropical and subtropical Southeast Asian karst floras. We show that immigration into subtropical Southeast Asian karst floras first occurred in the early Miocene, with two peaks in the early to middle Miocene and the Pliocene to early Pleistocene, whereas immigration into tropical Southeast Asian karsts initiated in the late Eocene, with two peaks in the late Oligocene and the late Miocene. The rich geological and ecological diversities of different regions, together with habitat isolation due to climatic changes, might be responsible for the different immigration patterns. We also discover that Southeast Asian karst biodiversity comprises a mix of immigrant pre-adapted lineages and descendants from local acid soil ancestors, although niche shift from acid soil to karst in tropical Southeast Asian islands was lacking. <span>These </span><span>findings</span> <span>provide insights into </span><span>how</span> <span>Southeast </span><span>Asian </span><span>k</span><span>arst</span><span>s</span><span> respond to ongoing climate change and are of particular importance for</span><span> their </span><span>conservation planning</span><span>.</span></p>
FIGURE 1. Begonia namkadingensis C.-J in Flora of Nam Kading National Protected Area III: Begonia namkadingensis (Begoniaceae), a new species in limestone area
FIGURE 1. Begonia namkadingensis C.-J. Yang, Souladeth & Tagane. A. Habit; B. Plant lower surface; C. Staminate flower; D & F. Pistillate flowers (front view and lateral view, respectively); E. Cross section of ovary; G. Young fruit; H. Mature fruit.
Immigration dynamics of tropical and subtropical Southeast Asian limestone karst floras
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FIGURE 3. Psychotria stolonifera. A in Additions to the rubiaceous flora of Papua New Guinea: Psychotria stolonifera and P. ternatifolia, two remarkable species from the Muller limestone
FIGURE 3. Psychotria stolonifera. A, vegetative stems; B, stipules. A–B from Takeuchi et al. 24707.
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