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6 results for “Cyclopogon”
Remote sensing and field information aid in predicting the presence of the terrestrial orchid Cyclopogon lute-albus
<p>Tropical montane cloud forest is one of the most threatened ecosystems, in central Veracruz, Mexico. Within this ecosystem, terrestrial orchids are strongly dependent on forest conditions and may be sensitive to environmental change. We applied field surveys of abiotic and biotic factors associated with the presence of the terrestrial orchid <em>Cyclopogon luteo-albus</em> and combined this with correlative niche modeling approaches to evaluate its potential distribution under two different environmental sets and two different extents. Layers of environmental information were obtained from Landsat imagery and interpolated bioclimatic and soil property layers. Existing species records were used as training data by sampling five forest fragments in central Veracruz, utilizing herbarium and global biodiversity information facility databases. The resulting predictions were tested by sampling at 15 sites of potential distribution. The model predicted the presence of <em>C. luteo-albus</em> with a reliability of 80%. The most important variables of models derived from interpolated layers coincide with site-relevant parameters suggesting the utility of these tools to further explore species suitabilities at larger geographic extents. Potential distribution mapping is an important tool to identify key areas for conservation and priority areas for future studies of species and partially resolves the lack of records of many orchid species.</p>
Remote sensing and field information aid in predicting the presence of the terrestrial orchid Cyclopogon lute-albus
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FIGURE. Orchidaceae from Honduras. A. Chysis laevis. B. Clowesia russelliana. C. Coelia densiflora. D. Cohniella ascendens. E. C. brachyphylla. F. Comparettia falcata. G. Coryanthes picturata. H. Corymborkis forcipigera. I. Cranichis revoluta. J. Cuitlauzina pulchella. K. Cyclopogon comosus. L. C. luteo-albus. M. Cyrtopodium macrobulbon. N. Dendrophylax porrectus. O. Dichaea glauca. P. D in An Updated Checklist of the Orchidaceae of Honduras
FIGURE. Orchidaceae from Honduras. A. Chysis laevis. B. Clowesia russelliana. C. Coelia densiflora. D. Cohniella ascendens. E. C. brachyphylla. F. Comparettia falcata. G. Coryanthes picturata. H. Corymborkis forcipigera. I. Cranichis revoluta. J. Cuitlauzina pulchella. K. Cyclopogon comosus. L. C. luteo-albus. M. Cyrtopodium macrobulbon. N. Dendrophylax porrectus. O. Dichaea glauca. P. D. hystricina. Photographs by the authors, except G (R. Gallardo) and H (P. House).
FIGURE 2. Cyclopogon soniae-juaniorum Zambrano. A in A new species of Cyclopogon (Orchidaceae: Spiranthinae) from southwestern Ecuador: Cyclopogon soniae-juaniorum
FIGURE 2. Cyclopogon soniae-juaniorum Zambrano. A. Habit, inflorescence and dried leaf. B. Floral bract and flower in lateral view. C. Segment of inflorescence. D. Floral dissection. E. Ovary, column and lip, lateral view. F. Detail of the column, ventral surface. G. Detail of the rostellum, lateral, dorsal and ventral surface. H. Details of the calli, base and dorsal surface of the lip. I. Anther and pollinarium. J. Capsule with persistent perianth. Plate by B.J. Zambrano based on Zambrano 272, 510 and 1786.
FIGURE 1. Cyclopogon soniae-juaniorum Zambrano. A. Habit. B. Flower, lateral view. C. Floral dissection. D in A new species of Cyclopogon (Orchidaceae: Spiranthinae) from southwestern Ecuador: Cyclopogon soniae-juaniorum
FIGURE 1. Cyclopogon soniae-juaniorum Zambrano. A. Habit. B. Flower, lateral view. C. Floral dissection. D. Ovary and column, lateral view. E. Column, ventral and lateral view. F. Pollinarium from below and above. Drawn by B.J. Zambrano from the holotype.
FIGURE 3 in A new species of Cyclopogon (Orchidaceae: Spiranthinae) from southwestern Ecuador: Cyclopogon soniae-juaniorum
FIGURE 3. Localities for Cyclopogon soniae-juaniorum in southwestern Ecuador. Map by B.J. Zambrano.
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