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16 results for “Anthoceros”
FIG. 1. — Anthoceros tristanianus J.C.Villarreal, J.J in Anthoceros tristanianus J.C.Villarreal, J.J.Engel & Váňa in Váňa & Engel (Anthocerotaceae, Anthocerotophyta) a new record for South America from the Colombian bryophyte flora
FIG. 1. — Anthoceros tristanianus J.C.Villarreal, J.J.Engel & Váňa in Váňa & Engel: A, Involucre; B, Antheridial chamber; C, Stoma on capsule wall; D, Spore, proximal surface; E, Spore, distal surface; F, Global distribution, Red circles indicate where the species has been reported. Scales bars: A, 1 mm; B, 35 μm; C, 40 μm; D, E, 10 μm.
Extremely low genetic diversity in the European clade of the model bryophyte Anthoceros agrestis
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FIGURE 2. Anthoceros subtilis. A. Whole plants. B. Antheridia with tiered jacket cell arrangement. C in Anthoceros subtilis and A. telaganus (Anthocerotaceae): two new records for America from the hornwort flora of Mexico
FIGURE 2. Anthoceros subtilis. A. Whole plants. B. Antheridia with tiered jacket cell arrangement. C. Thallus transverse section with schizogenous (Sc) cavities and Nostoc colonies (Nos). D. Dorsal surface cells with chloroplasts displaying central pyrenoids. E. Sporophyte transverse section with epidermal layer (ep), assimilative layer (as) and spores (sp). F. Epidermal layer of capsule with stomata. G. Spore ornamentation on distal surface (i), proximal surface (ii) and pseudoelaters.
FIGURE 4. Anthoceros telaganus. A. Whole plant. B. Thallus transverse section with schizogenous cavities. C. Antheridia with tiered jacket cell arrangement. D. Involucre transverse section with schizogenous cavities. E in Anthoceros subtilis and A. telaganus (Anthocerotaceae): two new records for America from the hornwort flora of Mexico
FIGURE 4. Anthoceros telaganus. A. Whole plant. B. Thallus transverse section with schizogenous cavities. C. Antheridia with tiered jacket cell arrangement. D. Involucre transverse section with schizogenous cavities. E. Sporophyte transverse section with epidermal layer (ep), assimilative layer (as), spore (sp) and columella (co). F. Epidermal layer of capsule with stomata. G. Spore ornamentation on distal surface (i), proximal surface (ii) and pseudoelaters.
FIGURE 3 in Anthoceros subtilis and A. telaganus (Anthocerotaceae): two new records for America from the hornwort flora of Mexico
FIGURE 3. Scanning electron microscopy (SEM) micrographs of spores of Anthoceros subtilis and A. aff sambesianus. A–B. Anthoceros subtilis (from A. Ibarra-Morales 2019-14b) C-D. Anthoceros aff sambesianus (from A. Ibarra-Morales 19b). A & C distal surface, B & D proximal surface.
FIGURE 2 in Taxonomic notes on Phaeoceros himalayensis, with lectotypification of Anthoceros himalayensis
FIGURE 2. SEM micrographs of spores of Phaeoceros himalayensis (Kashyap) Prosk. ex Bapna & G.G.Vyas: A. Proximal view of spore. B. Distal view of spore. C. Close-up of the proximal spore surface showing the finely vermiculate surface, central hollow and verrucose projections. D. Close-up of the distal face showing verrucose projections and vermiculate surface. All from R. S. Chopra s.n. (M).
FIGURE 1 in Taxonomic notes on Phaeoceros himalayensis, with lectotypification of Anthoceros himalayensis
FIGURE 1. Phaeoceros himalayensis (Kashyap) Prosk. ex Bapna & G.G.Vyas: A–B. Thalli with tubers and sporophytes. C. Dorsal epidermal cells of thallus. D. Epidermal cells of capsule. E. Innermost cells of capsule wall. F–G. Spores, F. proximal view, G. distal view. H. Pseudoelaters. A–B, D–H. from R.S. Chopra s.n (M), C. from Chantanaorrapint 2525C (PSU).
FIGURE 3. Anthoceros bharadwajii Udar & A.K.Asthana. A in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 3. Anthoceros bharadwajii Udar & A.K.Asthana. A. Dorsal epidermis of thallus with solitary chloroplasts spread across cells and round, central pyrenoids. B. Pseudoelater with thin-walls and irregular thickenings. C. Capsule epidermis with thin-walled cells and a stoma. D. SEM micrograph showing proximal face of spore marked by a distinct trilete mark and parallel wide unsculptured strips. E. SEM micrograph showing distal spore face with densely studded tuberculate-baculate projections. A–C from Y. Yu 20100920-8 (HSNU), D and E from D.-K. Li 03264 (SHM). Scale bars: A, C=50 µm; B =20 µm; D, E=10 µm.
FIGURE 4. Anthoceros punctatus L. A. Thalli with immature light green sporophytes. B in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 4. Anthoceros punctatus L. A. Thalli with immature light green sporophytes. B. Dorsal lamellae on thallus. C. Transverse section of thallus showing large mucilage cavities. D. Nostoc colony within ventral thallus in transverse section. E. Transverse section of thallus showing one antheridial cavity with four antheridia (arrow). F. Transverse section of a young sporophyte with a central columella (C), single-layered sporogenous tissue (ST), four-layers of assimilative cells (AC) and non-photosynthetic epidermis (E). G. Dorsal thallus epidermis with a single chloroplast. H. Thin-walled epidermis of capsule with stomata. I. Three-celled pseudoelater, showing thin-walls and irregular thickenings. J. SEM micrograph showing proximal spore face with distinct trilete mark and reticulations (foveate-reticulate). K. SEM micrograph showing distal spore face which is spinulate and reticulate with bold spinulate ridges, spines subacute at apex with rounded heads, occasionally bifurcating. L. SEM micrograph showing spores and pseudoelaters. A–I from T. Peng 20110220-11 (HSNU), J–L from D.-K. Li & C.-H. Gao 07035 (SHM). Scale bars: A=2 mm; B=1 mm; C=100 µm; D=200 µm; E–H=50 µm; I, L=20 µm; J, K=10 µm.
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D. Dehisced antheridia with orange chromoplasts in jacket cells. E. Transverse section of thallus showing large mucilage cavities. F. Elongated epidermal cells of a young capsule, showing thin-walled cells and two stomata. G. Epidermis of thallus, showing solitary chloroplasts with starch granules. H. Elongated, thin-walled pseudoelater. I, K, N, O. SEM micrographs showing proximal spore faces with distinct trilete marks and shortly papillate to spinulate-blunt protuberances. J, L, M, P. SEM micrographs showing distal spore faces with adherent studded spines forming a false lamellate pattern. A and C–M from T. Peng & J. Wang 20110520-8 (HSNU), B and D from T. Peng & J. Wang 20111011-9 (HSNU), N–P from Rev. Bretaudeau 1239 (holotype of Anthoceros angustus: G-12816). Scale bars: A, B=1 mm; C, E=100 µm; D, F, H=50 µm; G, I–P=10 µm.
FIGURE 1. Anthoceros alpinus Steph. A in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 1. Anthoceros alpinus Steph. A. Thin-walled epidermis of capsule with stomata. B. Pseudoelater with thin-walls and irregular thickenings. C. SEM (scanning electron microscope) micrograph showing proximal spore face with a prominent trilete mark and narrow surrounding strip that is ornamentation-free (smooth). D. SEM micrograph showing distal face of spore with semireticulate pattern comprising ridges ornamented with blunt and round-headed knobs. All from D.G. Long 18961 (E). Scale bars: A=50 µm; B=20 µm; C, D=10 µm.
FIGURE 5. Anthoceros subtilis Steph. A. Capsule epidermis with thin walls and stomata. B. SEM micrograph showing sporophyte fragment with tetrads and pseudoelaters. C in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 5. Anthoceros subtilis Steph. A. Capsule epidermis with thin walls and stomata. B. SEM micrograph showing sporophyte fragment with tetrads and pseudoelaters. C. Pseudoelaters with thin-walls and irregular thickenings. D. SEM micrograph showing proximal face of spore which is spinulose and has distinct trilete mark. E. SEM micrograph showing distal spore face which is papillate to spinulose with spines often united at the base. All from R.-H. Dai PX95106 (GACP). Scale bars: A, C=50 µm; B, D, E=10 µm.
5-methyl cytosine profile of Anthoceros agrestis
GEO Series GSE218877. Anthoceros agrestis. 2 samples. Type: Methylation profiling by high throughput sequencing.
Chromatin profile of Anthoceros agrestis
GEO Series GSE218878. Anthoceros agrestis. 18 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
5-methyl cytosine profile and chromatin profile of Anthoceros agrestis
GEO Series GSE218880. Anthoceros agrestis. 20 samples. Type: Methylation profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
FIGURE 1 in Anthoceros subtilis and A. telaganus (Anthocerotaceae): two new records for America from the hornwort flora of Mexico
FIGURE 1. Collecting sites of Mexican populations of Anthoceros subtilis and A. telaganus in Mexico.
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