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28 results for “Riellaceae”
FIG. 3 in Study of a new population of the Argentinian endemic species Riella choconensis Hässel (Riellaceae, Marchantiophyta) reveals a novel anatomical structure of the female involucre in Riella
FIG. 3. — LM and SEM images of spores of Riella choconensis Hässel. A, distal view; B, spines from distal side; C, spines from proximal side; D, distal view; E, spines from distal side; F, spines from proximal side; G, distal view; H, Spines and reticulum from distal pole; I, spines from distal side and rugose spore surface; J, distal view; K, spines and reticulum from distal pole; L, spines from distal side and rugose spore surface; M, proximal view; N, proximal spore surface and spines; O, proximal spines and rugose-granulose spore surface; P, Proximal view; Q, transition between distal and proximal side, showing the equatorial row of distal spines; R, Proximal spines and rugose spore surface (A-F made with LM; G-R made with SEM; A-C, I, from VAL-Briof. 11724; G-H, M-O, from VAL-Briof. 11725; D-F, J-L, P-R, from BA 33609). Scale bars: A, D, 50 μm; B, C, E, F, H, K, N, Q, 10 μm; G, J, M, P, 30 μm; I, L, O, 5 μm; R, 8 μm.
FIG. 2 in Study of a new population of the Argentinian endemic species Riella choconensis Hässel (Riellaceae, Marchantiophyta) reveals a novel anatomical structure of the female involucre in Riella
FIG. 2. — Habitat, LM and SEM images of Riella choconensis Hässel A, view of the Laguna de los Juncos; B, circinate apex of a male individual thallus showing a continuous row of antheridia; C, cells from thallus wing showing an oil cell with a single, rough oil body; D, apex of a female individual thallus showing three developing sporophytes; E, female involucre enclosing a sporophyte; F, apex of female involucre occluded by inflated cells; G, cross-section of female involucre showing the bistratose wall; H, female involucre; I, Apex of female involucre (B-G made with LM from VAL-Briof. 11724; H,I made with SEM from VAL-Briof. 11725), Scale bars: B, D, 1 mm; C, 20 μm; E, 500 μm; F, 200 μm; G, 50 μm; H, 300 μm; I, 70 μm.
FIG. 1 in Study of a new population of the Argentinian endemic species Riella choconensis Hässel (Riellaceae, Marchantiophyta) reveals a novel anatomical structure of the female involucre in Riella
FIG. 1. — Distribution of the five Argentinian species of Riella Mont. The inset map shows the geographical location of records of each species designated by a different symbol across the different provinces in Central Argentina. Previously known records of Riella choconensis Hässel are designated by a diamond (type locality) and new record by a star. The map indicates names and administrative boundaries of Argentinian provinces (grey lines) which are at some instances coincident with rivers (blue lines).
FIG. 4 in A complete description and conservation assessment of Riella affinis Howe & Underwood (Riellaceae, Sphaerocarpales) new to continental Europe
FIG. 4. — Riella affinis Howe & Underwood: A, habit; B-D, vegetative scales; E, cells from margin of thallus wing; F, female involucre; G, cross-section of female involucre showing seven wings; H, spore in distal view; I, spore in proximal view; J, spore spines from distal face; K, spore spines from proximal face. (all from VAL-Briof. 11.797). Scale bars: A, 5 mm; B, C, D, 100 μm; E, 200 μm; F, G, 500 μm; H, I, 30 μm; J, K, 8 μm.
FIG. 3 in A complete description and conservation assessment of Riella affinis Howe & Underwood (Riellaceae, Sphaerocarpales) new to continental Europe
FIG. 3. — LM and SEM images of spores of Riella affinis Howe & Underwood: A, distal view; B, spines and reticulum from distal pole; C, spines from distal side; D, equatorial row of spines; E, proximal view; F, spines from proximal side; G, distal view; H, spines and reticulum of basal membranes at distal pole; I, spines from distal side; J, proximal view; K, transition between distal and proximal side, showing the equatorial row of distal spines; L, proximal spines and rugose spore surface. (all from VAL-Briof. 11.797). Scale bars: A, E, 50 μm; B, C, D, F, 10 μm; G, J, 30 μm; H, 9 μm; I, 5 μm; K, L, 8 μm.
FIG. 1 in A complete description and conservation assessment of Riella affinis Howe & Underwood (Riellaceae, Sphaerocarpales) new to continental Europe
FIG. 1. — World distribution of Riella affinis Howe & Underwood. Each symbol represents a population. Known records of R. affinis are designated by black dots, new records by a star (populations from Caja and Viso lagoons, Las Lomas, Malaga province, Spain).
FIG. 2 in A complete description and conservation assessment of Riella affinis Howe & Underwood (Riellaceae, Sphaerocarpales) new to continental Europe
FIG. 2. — Habitat, LM and SEM images of Riella affinis Howe & Underwood: A, habitat at the Caja lagoon; B, one individual showing the lobulate wing; C, thallus apex showing a developing winged female involucre with a sporophyte enclosed and antheridia solitary or in small groups in sinuses of the thallus wing (arrowed); D, E, two female involucres showing the variation in involucre wing morphologies; F, SEM image of female involucre showing an interrupted wing (all from VALBriof. 11.797). Scale bars: B, 5 mm; C, 500 μm; D, F, 200 μm; E, 300 μm.
FIGURE 21. Riella mediterranea. A–B. General habit. A. Female plant. B. male plant. C. Vegetative scale. D. Panduriform propaguliferous scale. E in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 21. Riella mediterranea. A–B. General habit. A. Female plant. B. male plant. C. Vegetative scale. D. Panduriform propaguliferous scale. E. Detail of cells from margin of thallus wing. F. Female involucre. G. Transverse section of female involucre. H. Spore in distal view. I. Spines from distal face. J. Spines from proximal face. (A–I from 9.246 VAL-Briof., J from 9.245 VAL- Briof.).
FIGURE 3 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 3. Scanning electron microscopy photographs of female involucres from monoicous species of Riella subgen. Trabutiella. A–B. R. affinis. C–D. R. heliospora. A, C. habit showing the position of antheridia (arrows). B. Ellipsoid involucres with apiculate apex and 8 thin discontinuous wings. D. Ellipsoid involucres with blunt apex and 8 broad wings. (A–B from 9.230 VAL-Briof., C–D from 9.197 VAL-Briof.).
FIGURE 4 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 4. Scanning electron microscopy photographs of female involucres from dioicous species of Riella subgen. Trabutiella. A–B. R. cossoniana. C–D. R. echinata. E-F. R. mediterranea. A–B. Ellipsoid involucres with blunt apex and 8 broad wings. C–D. Ovoid involucres with apiculate apex and thin, irregular and discontinuous wings. E–F. Acuminate involucres with>12 thin, irregular and discontinuous wings. (A–B from 9.225 VAL-Briof., C–D from 9.233 VAL-Briof., E from 9.239 VAL-Briof., F from 9.247 VAL-Briof).
FIGURE 1 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 1. Stereomicroscopy photographs of plants of monoicous species of Riella subgen. Trabutiella. A–C. R. affinis. D–F. R. heliospora. A, D. Habit. B, E. Position of antheridia (arrows) in plants with sporophytes. C, F. Female involucres. B–C. Ellipsoid involucres with 8 thin wings and apiculate apex. F. Ellipsoid involucres with 8 broad wings and blunt apices.
FIGURE 13 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 13. Box plots of simple statistics (median, 25 and 75 percentiles, range, and outliers, if any) of 13 spore quantitative morphological characters (axis y) of 1, Riella affinis, 2, R. heliospora, 3, R. cossoniana, 4, R. paulsenii, 5, R. echinata, 6, R. gamundiae and 7, R. mediterranea.
FIGURE 7 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 7. Light microscopy photographs of spores from dioicous species of Riella subgen. Trabutiella. A, C, E, G. R. cossoniana. B, D, F, H. R. echinata. A–B. General view of equatorial plane. C, D. Detail of distal pole. E–F. Detail of spines from distal face. G– H. Detail of the spines from proximal face. (A, C from 9.329 VAL-Briof., B, F from 006621 Herb. Dirkse, D from 9.232 VAL-Briof., E from 9.226 VAL-Briof. G from 9.228 Val.-Briof., H from 04003558 JE).
FIGURE 17. Riella cossoniana. A–B. General habit. A. Female plant. B. Male plant. C–D. Panduriform propaguliferous scales. E. Vegetative scale. F in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 17. Riella cossoniana. A–B. General habit. A. Female plant. B. Male plant. C–D. Panduriform propaguliferous scales. E. Vegetative scale. F. Detail of cells from margin of thallus wing. G. Female involucre. H. Transverse section of female involucre. I. Spore in distal view. J. Spines from distal face. (All from 9.226 VAL-Briof.).
FIGURE 10 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 10. Light microscopy photographs of spores from dioicous species Riella subgen. Trabutiella. A–D. R. gamundiae. E–H. R. mediterranea. A. General view of distal face. B. Detail from distal face. C. Detail of spines from distal face. D. Detail of spines from proximal face. E. General view of equatorial plane. F. Side view. G. Detail of spines from distal face. H. Detail of spines from proximal face. (A–D from 21023 BA; E, F, H from holotype 9.246 VAL-Briof. G from 26166b VIT).
FIGURE 20 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 20. Worldwide distribution of Riella echinata and R. mediterranea. Type localities are indicated with open symbols.
FIGURE 2 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 2. Stereomicroscopy photographs of plants of dioicous species of Riella subgen. Trabutiella. A–C. R. cossoniana. D–F. R. echinata. G–I. R. mediterranea. A, D, G. Habit of male plants. B. E, H. Habit of female plants. C. Ellipsoid involucres with 8 broad wings and blunt apices. F. Ovoid involucres with 6 thin, irregular and discontinuous wings and apiculate apex, note the air bubble inside the involucres in E and F. I. Acuminate involucre with 15 thin, irregular and discontinuous wings.
FIGURE 6 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 6. Scanning electron microscopy photographs of spores from monoicous species of Riella subgen. Trabutiella. A, C, E, G, I. R. affinis. B, D, F, H, J. R. heliospora. A–B. General view from distal face. C–D. General view from proximal face. E–F. Detail of the equatorial plane dividing proximal and distal face. G–H. Detail of the spore surface and spines of distal face. I-J. Detail of the spore surface and spines from proximal face. (A, G, I from 1375 TFC-Bry., B, H from 9.197 VAL-Briof., C, E from B177457 Krypto-S, D, F, J from 00831263 NY).
FIGURE 19. Riella echinata. A-B. General habit. A. Female plant. B. Male plant. C. Vegetative scales. D. Gemmaling. E in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 19. Riella echinata. A-B. General habit. A. Female plant. B. Male plant. C. Vegetative scales. D. Gemmaling. E. Detail of cells from margin of thallus wing. F. Female involucre. G. Transverse section of female involucre. H. Spore in distal view. I. Spines from distal face. (A–G from 9.232 VAL-Briof., H from 04003558 JE, I from 006621 Herb. Dirkse).
FIGURE 18 in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)
FIGURE 18. Worldwide distribution of R. cossoniana. Populations encircled by the dotted line were considered previously as R. paulsenii. Type localities are indicated by open symbols.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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