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150 results for “Spiranthes”
FIGURE 5 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 5. Distribution map of S. bightensis, highlighting population loss over time. A. Collections made pre-1890's–present (the hypothesized original distribution of S. bightensis). B. 1900–present. C. 1950–present. D. 2000–present. Prepared by Elizabeth Gjieli, NYBG GIS Lab.
FIGURE 3 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 3. Line drawing of S. bightensis. A. Habit and leaf detail. B. Inflorescence. C. Inflorescence detail. D. Floral bract and flower. E–M. Dissected flower. E. Dorsal sepal. F. Dorsal petal. G. Lateral sepal. H. Labellum, flattened. I. Labellum and column in natural position. J. Column, profile view. K. Column, ventral and dorsal view. L. Anther. M. Pollinia. Drawn from Austin s.n. barcode 01392822 (NY) and Pace 608 (NY) by Bobbi Angell.
FIGURE 1 in Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast
FIGURE 1. Phylogenetic networks from NeighborNet analysis of the S. cernua species complex plus S. odorata; the position of species is indicated by ovals. A. Combined nuclear dataset (nrITS, ACO, Xdh); inset focuses on the relationships between S. cernua s.s. and S. bightensis, denoting the position of individual samples. B. Combined chloroplast dataset (matK, ndhJ, trnL intron, trnS-fM, ycf1 3'); inset focuses on the relationships between S. cernua s.s. and S. bightensis, denoting the position of individual samples (all samples are S. cernua s.s. unless otherwise indicated).
FIGURE 5 in Taxonomic revision of the genus Spiranthes (Orchidaceae) in Taiwan
FIGURE 5. Spiranthes nivea var. papillata (Tian-Chuan Hsu 7743, TAIF). (A) Habit. (B) Flower, front view. (C) Flower, lateral view. (D) Dorsal sepal. (E) Petal. (F) Lateral sepal. (G) Labellum. (H) Labellum and column, lateral view. (I) Flattened labellum. (J) Close-up of basal callosities of labellum. (K) Ovary and column. (L) Column. Scale bars: 30 mm (A), 3 mm (B–I), 0.5 mm (J) and 1 mm (K–L).
FIGURE 2 in Taxonomic revision of the genus Spiranthes (Orchidaceae) in Taiwan
FIGURE 2. Spiranthes suishaensis (holotype). (A) Habit. (B) Close-up view of inflorescence. (C) Flower, lateral view. (D) Dorsal sepal. (E) Petal. (F) Lateral sepal. (G) Labellum and column. Rostellum is indicated by the arrow. (H) Close-up of papillate labellum disc. (I) Column, upper view. (J) Column, bottom view. (K) Pollinarium. Scale bars: 100 mm (A), 3 mm (B–G) and 1 mm (H–K).
FIGURE 4 in Taxonomic revision of the genus Spiranthes (Orchidaceae) in Taiwan
FIGURE 4. Spiranthes nivea var. nivea collected at the type locality (Tian-Chuan Hsu 6342, TAIF). (A) Habit. (B) Flower, front view. (C) Flower, lateral view. (D) Dorsal sepal. (E) Petal. (F) Lateral sepal. (G) Labellum. (H) Labellum and column, lateral view. (I) Flattened labellum. (J) Close-up of basal callosities of labellum. (K) Ovary and column. (L) Column. Scale bars: 30 mm (A), 3 mm (B–I), 0.5 mm (J) and 1 mm (K–L).
FIGURE 1 in Taxonomic revision of the genus Spiranthes (Orchidaceae) in Taiwan
FIGURE 1. Spiranthes sinensis (Tian-Chuan Hsu 10400 [A] & Tian-Chuan Hsu 6393 [B–L], TAIF). (A) Habit. (B) Flower, front view. (C) Flower, lateral view. (D) Dorsal sepal. (E) Petal. (F) Lateral sepal. (G) Labellum. (H) Labellum and column, lateral view. (I) Flattened labellum. (J) Close-up of basal callosities of labellum. (K) Ovary and column. (L) Column. Scale bars: 30 mm (A), 3 mm (B–I), 0.5 mm (J) and 1 mm (K–L).
FIGURE 6 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 6. Neighbor-Net network of Spiranthes minamitaniana and its closely related taxa reconstructed based on uncorrected p distance calculated from 17656 SNPs.
FIGURE 5 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 5. Phylogenetic tree of Spiranthes minamitaniana and its closely related taxa reconstructed from MIG-seq data. Bootstrap values for intraspecific clades are not shown. Branch length represents the average number of substitutions per site.
FIGURE 2 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 2. Spiranthes minamitaniana with reddish pink normal flower (Tadashi Minamitani Ss146, KYO). (A) Inflorescence. (B) Flower, lateral view. (C) Flower, dorsal view. (D) Dorsal sepal. (E) Petal. (F) Lateral sepal. (G) Labellum. (H) Close-up of basal callosities of labellum. (I) Ovary and column. (J) Column, ventral view. (K) Column, dorsal view. (L) Pollinarium. Scale bars: 20 mm (A), 3 mm (B–G), 0.5 mm (H) and 1 mm (I–M).
FIGURE 4 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 4. Comparison between Spiranthes hachijoensis (Nahoko Fukudome Ss203, KYO: left) and S. minamitaniana (Tadashi Minamitani Ss204, KYO: right). (A) Habit. (B) Inflorescence. (C) Flower. (D) Column, dorsal view. (E) Column, lateral view. (F) Column, ventral view. Scale bars: 50 mm (A), 10 mm (B), 3 mm (C) and 1 mm (D–F). Photographed by Kenji Suetsugu.
FIGURE 1 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 1. Spiranthes minamitaniana in its type locality. (A) Habit. (B) Inflorescence with whitish cleistogamous flower. (C–D) Flower. Scale bars: 30 mm (A) and 5 mm (B–D).
FIGURE 3 in Spiranthes minamitaniana (Orchidaceae), a new orchid species from Japan based on morphological and phylogenetic data
FIGURE 3. Spiranthes minamitaniana with whitish cleistogamous flower (Tadashi Minamitani Ss147, KYO). (A) Inflorescence. (B) Flower and bract. (C) Flower. (D) Ovary and column. (E) Column, ventral view. (F) Column, dorsal view. Scale bars: 1 mm. Photographed by Masayuki Ishibashi.
Data from: Reinstatement, redescription, and emending of Spiranthes triloba (Orchidaceae): solving a 118 year old cryptic puzzle
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Data from: Does reproductive isolation reflect the segregation of color forms in Spiranthes sinensis (Pers.) Ames complex (Orchidaceae) in the Chinese Himalayas?
Isolation between species, or taxa sharing a common lineage, depends primarily on the relative strengths of various reproductive barriers. Previous studies on reproductive isolation between orchids emphasized mechanical and ethological barriers in flowers of species showing food and/or sexual mimicry. In this study, we investigated and quantified a series of pre- and post-pollination barriers between pink and white forms of Spiranthes sinensis sl, a nectar-secreting complex. We generated ML trees based on trnS-G and matK to explore phylogenetic relationships in this species complex. Spiranthes sinensis sl segregated from some other congeners but the white form constituted a distinct clade in relation to the pink form. The white form secreted 2-Phenylethanol as its single scent compound and was pollinated almost exclusively by native, large-bodied Apis cerana and Bombus species (Apidae). Apis cerana showed a high floral constancy to this form. The scentless, pink form was pollinated primarily by smaller bees in the genera Ceratina (Apidae), and members of the family Halictidae, with infrequent visits by A. cerana and Bombus species. Fruit set and the production of large embryos following inter-form pollination treatments were significantly lower compared to intra-form pollination results for the white form. Our results suggested that pollinator isolation, based on color and scent cues, may result in greater floral constancy in white populations when both forms are sympatric as two different, guilds of pollinators forage selectively preventing or reducing prospective gene flow. Post-pollination barriers appear weaker than pre-pollination barriers but they also play a role in inter-form isolation, especially in the white form. Our findings suggest that floral color forms in S. sinensis do not represent an unbalanced polymorphism. Interpretations of the evolutionary status of these forms are discussed.
Figure Spiranthes spiralis, Spiranthes aestivalis in Orchidaceae, Orchideen
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Figure 4 from: Surveswaran S, Kumar P, Sun M (2017) Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia. PhytoKeys 89: 115-128. https://doi.org/10.3897/phytokeys.89.19978
Figure 4 - Comparison of morphological characters of allied species. ASpiranthes himalayensis: 1 Close-up of inflorescence 2 A flower 3 Floral bract 4 Dorsal sepal 5 Lateral sepal 6 Petal 7 Ovary with column and labellum 8 Labellum (side view) 9 Labellum (top view) 10 Close-up showing glandular hairs on labellum and ovary 11 Ovary with column (side view) 12 Ovary with column (ventral view) BS. sinensis: 1 Close-up of inflorescence 2 A flower 3 Floral bract 4 Dorsal sepal 5 Lateral sepal 6 Petal 7 Ovary with column and labellum 8 Labellum (side view) 9 Labellum (top view) 10 Ovary with column (side view) 11 Ovary with column (ventral view) CS. hongkongensis: 1 Close-up of inflorescence 2 A flower 3 Floral bract 4 Dorsal sepal 5 Lateral sepal 6 Petal 7 Ovary with column and labellum; 8. Labellum (side view) 9 Labellum (top view) 10 Close-up showing glandular hairs on labellum and ovary 11 Ovary with column (side view) 12 Ovary with column (ventral view) DS. nivea: 1. Close-up of inflorescence; 2. A flower 3 Floral bract 4 Dorsal sepal 5 Lateral sepal 6 Petal 7 Ovary with column and labellum 8 Labellum (side view) 9 Labellum (top view) 10 Close-up showing glandular hairs on labellum and ovary 11 Ovary with column (side view) 12 Ovary with column (ventral view). Note: The pinkish/bluish hue on petals of S. himalayensis, S. nivea and S. hongkongensis is due to the black background in the plates while the flowers appear fully white in natural light.
Figure 3 from: Surveswaran S, Kumar P, Sun M (2017) Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia. PhytoKeys 89: 115-128. https://doi.org/10.3897/phytokeys.89.19978
Figure 3 - Spiranthes himalayensis Survesw., Kumar & Mei Sun, sp. nov. A Complete plant B Inflorescence C Floral bract D Dorsal sepal E Lateral sepal F Petal G Ovary with column and labellum H Close-up showing the glandular hairs on flower and ovary I Side view of labellum J Top view of labellum K Side view of ovary with column L Front view of ovary and column M Front view of pollinarium N Side view of pollinarium. Note: The pinkish/bluish hue on petals of S. himalayensis is due to the black background in the plates while the flowers appear fully white in natural light.
Figure 2 from: Surveswaran S, Kumar P, Sun M (2017) Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia. PhytoKeys 89: 115-128. https://doi.org/10.3897/phytokeys.89.19978
Figure 2 - Habitat and habit of Spiranthes himalayensis Survesw., Kumar & Mei Sun, sp. nov. A Habitat (type location) - along the bunds of paddy fields B Habit of S. himalayensis C Close-up of the inflorescence showing white coloured flowers with densely covered glandular hairs.
Figure 1 from: Surveswaran S, Kumar P, Sun M (2017) Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia. PhytoKeys 89: 115-128. https://doi.org/10.3897/phytokeys.89.19978
Figure 1 - Bayesian phylogenetic tree indicating Spiranthes himalayensis Survesw., Kumar & Mei Sun sp. nov. Sequences generated for this study are indicated in bold, specimen identification numbers and area of collection are indicated beside the species names. Bayesian probability supports are indicated at the nodes.
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OpenNeuro
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