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46 results for “Cyrtandra”
Herbarium specimen image of Cyrtandra lacerata B.L.Burtt, part of the collection of Royal Botanic Garden Edinburgh
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
Herbarium specimen image of Cyrtandra thamnodes B.L.Burtt, part of the collection of Royal Botanic Garden Edinburgh
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
Herbarium specimen image of Cyrtandra djamuensis (Schltr.), part of the collection of Royal Botanic Garden Edinburgh
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Fig. 2. Cyrtandra argentii Olivar, H.J in Cyrtandra argentii, a new species of Cyrtandra (Gesneriaceae) from the Philippines, and a review of the C. villosissima group
Fig. 2. Cyrtandra argentii Olivar, H.J.Atkins & Muellner sp. nov. A. Flower, lateral view. B. Detail of upper leaf surface. C. Habit. D. Inflorescence. E. Calyx, longitudinal section. F. Corolla, longitudinal section. G. Gynoecium. H. Fruit enclosed by the persistent calyx. Drawn from Mendum et al. 29053 deposited at E. Habit, inflorescence, fruit and leaf indumentum drawn from dried material. Flower parts all from material preserved in alcohol. Drawing by Claire Banks.
Data from: Microhabitat heterogeneity and a non-native avian frugivore drive the population dynamics of an island endemic shrub, Cyrtandra dentata
Understanding of the role of environmental change in the decline of endangered species is critical to designing scale-appropriate restoration plans. For locally endemic rare plants on the brink of extinction, frugivory can drastically reduce local recruitment by dispersing seeds away from geographically isolated populations. Dispersal of seeds away from isolated populations can ultimately lead to population decline. For localized endemic plants, fine-scale changes in microhabitat can further limit population persistence. Evaluating the individual and combined impact of frugivores and microhabitat heterogeneity on the short-term (i.e. transient) and long-term (i.e. asymptotic) dynamics of plants will provide insight into the drivers of species rarity. In this study, we used four years of demographic data to develop matrix projection models for a long-lived shrub, Cyrtandra dentata (H. St. John & Storey) (Gesneriaceae), which is endemic to the island of O'ahu in Hawai'i. Furthermore, we evaluated the individual and combined influence of a non-native frugivorous bird, Leiothrix lutea, and microhabitat heterogeneity on the short-term and long-term C. dentata population dynamics. Frugivory by L. lutea decreased the short-term and long-term population growth rates. However, under the current level of frugivory at the field site the C. dentata population was projected to persist over time. Conversely, the removal of optimum microhabitat for seedling establishment (i.e. rocky gulch walls and boulders in the gulch bottom) reduced the short-term and long-term population growth rates from growing to declining. Survival of mature C. dentata plants had the greatest influence on long-term population dynamics, followed by the growth of seedlings and immature plants. The importance of mature plant survival was even greater when we simulated the combined effect of frugivory and the loss of optimal microhabitat, relative to population dynamics based on field conditions. In the short-term (10 years), however, earlier life stages had the greatest influence on population growth rate. Synthesis and applications. This study emphasizes how important it is to decouple rare plant management strategies in the short versus long-term in order to prioritize restoration actions, particularly when faced with multiple stressors not all of which can be feasibly managed. From an applied conservation perspective, our findings also illustrate that the life stage that, if improved by management, would have the greatest influence on population dynamics is dependent on the timeframe of interest and initial conditions of the population.
FIGURE 1 in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 1. Cyrtandra tempestii Horne ex C.B.Clarke A Habit B Stem and inflorescences C Corolla, anterior view D Mature fruits. Drawn by Liv-Monique Johnson from field photographs by J. Game.
FIGURE 4. A in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 4. A portion of the Maximum Likelihood phylogram from Johnson et al. (2017) based on three nuclear (ITS, ETS, Cyrt1) and two chloroplast (psbA-trnH, rpl32-trnL) loci. Support values shown for each branch are bootstrap (BS) and posterior probabilities (PP) when ≥ 50% and ≥ 0.50, respectively. An asterisk indicates 100% BS or 1.0 PP; a dash indicates that the branch was not supported.
FIGURE 3 in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 3. Distribution of Cyrtandra tempestii Horne ex C.B.Clarke and C. tuiwawai M.A.Johnson on Taveuni, Fiji. The location of the single individual referred to as C. aff. tempestii collected from Lavena is also noted.
FIGURE 2 in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 2. Cyrtandra tempestii Horne ex C.B.Clarke from Salialailai and C. aff. tempestii from Lavena A C. tempestii shrub habit B C. tempestii corolla, anterior view C Lateral view of C. tempestii flower, buds and mature fruit D C. aff. tempestii axillary cyme inflorescence with calyces cleft to base. Photos A–C taken in the field by J. Game, photo D taken in the field by M.A. Johnson.
FIGURE 6. Cyrtandra tuiwawai M.A.Johnson A Habit B Inflorescence, lateral view C Flower, anterior view D in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 6. Cyrtandra tuiwawai M.A.Johnson A Habit B Inflorescence, lateral view C Flower, anterior view D Young (green) and mature (white) fruits. All photographs taken in the field by M.A. Johnson.
FIGURE 5. Cyrtandra tuiwawai M.A.Johnson A Habit B in Revision of Cyrtandra tempestii (Gesneriaceae) and the description of Cyrtandra tuiwawai from Taveuni, Fiji
FIGURE 5. Cyrtandra tuiwawai M.A.Johnson A Habit B Inflorescence with buds, an older flower, and developing young fruit C Corolla and calyx of younger flower, lateral view D Corolla, anterior view E Dissected corolla, showing stamen insertion, details of the gynoecium, and staminodes F Close-up of three staminodes G Fruits. Drawn by Liv-Monique Johnson from M.A. Johnson 83 (RSA, SUVA) and field photographs by M.A. Johnson.
Data from: Microhabitat heterogeneity and a non-native avian frugivore drive the population dynamics of an island endemic shrub, Cyrtandra dentata
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Data from: Multiple colonizations, hybridization and uneven diversification in Cyrtandra (Gesneriaceae) lineages on Hawai‘i Island
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Data from: Diversification of Hawaiian Cyrtandra (Gesneriaceae) under the influence of incomplete lineage sorting and hybridization
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Fig. 1 in Cyrtandra argentii, a new species of Cyrtandra (Gesneriaceae) from the Philippines, and a review of the C. villosissima group
Fig. 1. Map of the Philippines showing known distributions of Cyrtandra argentii Olivar, H.J.Atkins & Muellner sp. nov. (*), C. ferruginea Merr. (■), C. hirtigera H.J.Atkins & Cronk (◆), and C. villosissima Merr. (●) based on collection localities. A single point may represent more than one collection.
Fig. 3. Leaf similarities. A. C. argentii Olivar, H.J in Cyrtandra argentii, a new species of Cyrtandra (Gesneriaceae) from the Philippines, and a review of the C. villosissima group
Fig. 3. Leaf similarities. A. C. argentii Olivar, H.J.Atkins & Muellner sp. nov. B. C. ferruginea Merr. C. C. hirtigera H.J.Atkins & Cronk. D. C. villosissima Merr. Photos taken from Co's Digital Flora with permission (Pelser et al. 2011 onwards).
Fig. 4. Inflorescence types. A. C. argentii Olivar, H.J in Cyrtandra argentii, a new species of Cyrtandra (Gesneriaceae) from the Philippines, and a review of the C. villosissima group
Fig. 4. Inflorescence types. A. C. argentii Olivar, H.J.Atkins & Muellner sp. nov. B. C. ferruginea Merr. C. C. hirtigera H.J.Atkins & Cronk. D. C. villosissima Merr. A, B & D from Co's Digital Flora with permission (Pelser et al. 2011 onwards). C from a living collection in RBGE.
Figure 4 from: Wood KR, Wagner WL (2024) Cyrtandra obliquifolia (Gesneriaceae), a new species from Kaua'i, Hawaiian Islands. PhytoKeys 237: 141-151. https://doi.org/10.3897/phytokeys.237.114704
Figure 4 Cyrtandra wawrae C.B. Clarke A habit with inflorescence B close-up of inflorescence and peltate leaf C peltate leaves D close-up of corolla and side view of calyx. All photos by K.R. Wood A 17 June 2017, Wailua B Wailua, Wood 17317 (PTBG) C, D Lumahai, Wood 17398 (PTBG).
Figure 3 from: Wood KR, Wagner WL (2024) Cyrtandra obliquifolia (Gesneriaceae), a new species from Kaua'i, Hawaiian Islands. PhytoKeys 237: 141-151. https://doi.org/10.3897/phytokeys.237.114704
Figure 3 Cyrtandra obliquifolia K.R. Wood & W.L. Wagner from headwaters of Waikoko Valley where holotype was collected A, B habit C close-up of early anthesis flower D general habitat of type locality. All photos by K.R. Wood.
Figure 1 from: Wood KR, Wagner WL (2024) Cyrtandra obliquifolia (Gesneriaceae), a new species from Kaua'i, Hawaiian Islands. PhytoKeys 237: 141-151. https://doi.org/10.3897/phytokeys.237.114704
Figure 1 Distribution map (Kaua'i, Hawaiian Islands) with dots representing the two known locations of Cyrtandra obliquifolia K.R. Wood & W.L. Wagner and polygon representing the broad distribution of C. wawrae C.B. Clarke.
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