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25 results for “Anthocerotophyta”
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.
FIG. 3 in Anatomy and morphology of Phaeomegaceros fimbriatus (Gottsche) R.J.Duff, J.C.Villarreal, Cargill & Renzaglia (Anthocerotophyta), a novel record for North America
FIG. 3. — Spores of Phaeomegaceros fimbriatus (Gottsche) R.J.Duff, J.C.Villarreal, Cargill & Renzaglia under scanning electron microscopy: A-B, distal face varia- tion of the spores: A, five depressions surrounding a central depression on distal face of spores; B, six depressions surrounding a central depression on distal face of spores; C, proximal face with button-like verrucae confined to the center of triangular areas; D, spore tetrads (tesp) and pseudoelaters (ps). Scale bars: 10 µm.
FIG. 2 in Anatomy and morphology of Phaeomegaceros fimbriatus (Gottsche) R.J.Duff, J.C.Villarreal, Cargill & Renzaglia (Anthocerotophyta), a novel record for North America
FIG. 2. — Phaeomegaceros fimbriatus (Gottsche) R.J.Duff, J.C.Villarreal, Cargill & Renzaglia: A, female plant; B, transverse section of gametophyte thallus with band-like thickenings (eng) in cell walls; C, transverse section of gametophyte thallus with ventral tuber (tv) surrounded by rhizoids (ri); D, dorsal surface of a male plant with an antheridium (an) in each antheridial chamber; E, transverse section of a male plant with numerous antheridial chambers (can) and an antheridium (an); F, close up on antheridium (an); G, transverse section of involucre (i) with numerous lamellae (l); H, longitudinal section of the sporophyte foot (e) with placenta (pl); I, longitudinal section of sporophyte capsule with assimilative tissue (ta), spores (es) and central columella (c); J, transverse section of sporophyte with epidermis (ep), assimilative tissue (ta) and central columella (c); K, close up of spores (es), pseudoelaters and central columella (c); L, spores (es) and pseudoelaters (ps). Scale bars: A, 5 mm; B, I, K, 50 µm; C, F, H, J, 100 µm; D, E, G, 200 µm L, 30 µm.
FIGURE 5 in Checklist of Bryophytes (Anthocerotophyta, Bryophyta and Marchantiophyta) of the state of Maranhão, Brazil
FIGURE 5. Number of taxa of Bryophyta demonstrating the distribution of genus and species by family.
FIGURE 4 in Checklist of Bryophytes (Anthocerotophyta, Bryophyta and Marchantiophyta) of the state of Maranhão, Brazil
FIGURE 4. Number of taxa of Marchantiophyta demonstrating the distribution of genus and species by family.
FIGURE 1 in Checklist of Bryophytes (Anthocerotophyta, Bryophyta and Marchantiophyta) of the state of Maranhão, Brazil
FIGURE 1. Geopolitical delimitation of the state of Maranhão showing the phytogeographic domains present in the state.
FIGURE 7 in Checklist of Bryophytes (Anthocerotophyta, Bryophyta and Marchantiophyta) of the state of Maranhão, Brazil
FIGURE 7. Representation of gametophytes of the most representative genera in species for the state of Maranhão. A. Calymperes palisotii; B. Cheilolejeunea rigidula; C. Fissidens flacidus; D. Frullania ericoides; E. Lejeunea flava; F. Plagiochila disticha; G. Syrrhopondon prolifer; H. Trichosteleum subdemissum.
FIGURE. 1 in Notes on Early Land Plants Today. 70. Nomenclatural notes in hornworts (Anthocerotophyta)
FIGURE. 1. Spores of Anthoceros cristatus. (A) Spores from holotype Stephani herb. no. 24501 (G-00045042) and Aspiromitus dismieri (B). Scale bar is 10 μm. Spores from holotype, Rotereau s.n, Stephanie herb. no.00045054
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.
FIGURE 4 in A revision of the genus Notothylas (Notothyladaceae, Anthocerotophyta) in China
FIGURE 4. Epidermis of mature capsule wall in Notothylas depressispora J.Haseg. showing thick walls and narrow lumen. 1, 2. Light micrographs.1. Surface view. 2. Transverse section. 3. SEM micrograph. All from N. Kitagawa T-12394 (isotype G-154203).
FIGURE 2. Notothylas yunnanensis T.Peng & R.L.Zhu 1. Thalli with mature orange-red sporophytes. 2. Dorsal thallus epidermis, showing each cell containing a single chloroplast with central pyrenoid. 3 in A revision of the genus Notothylas (Notothyladaceae, Anthocerotophyta) in China
FIGURE 2. Notothylas yunnanensis T.Peng & R.L.Zhu 1. Thalli with mature orange-red sporophytes. 2. Dorsal thallus epidermis, showing each cell containing a single chloroplast with central pyrenoid. 3. Two Nostoc colonies within ventral side of solid thallus in transverse section. 4. Four antheridia with orange chromoplasts in irregularly arranged jacket cells. 5. Transverse section of capsule wall. 6. Dehiscing sporophyte with yellowish spores and columella. 7. Epidermis of capsule wall. 8. Three spores and a pseudoelater. 9. Capsule wall showing slightly thick-walled, sub-quadrate to sub-rectangular, irregularly arranged epidermal cells. All from T. Peng et al. 20120715-7 (holotype HSNU).
FIGURE 3 in A revision of the genus Notothylas (Notothyladaceae, Anthocerotophyta) in China
FIGURE 3. Scanning electron microscope (SEM) micrograph of Notothylas yunnanensis T.Peng & R.L.Zhu 1. Proximal spore surface with prominent trilete mark and one small hollow in center of each of three faces. 2. Distal densely vermiculate surface of spore with a slight dome-like projection. 3. Enlargement of upper proximal face in Fig. 1. 4. Distal surface of spore. 5. Enlargement of vermiculate ornamentation on proximal surface of spore. 6. Upper portion of capsule epidermis. 7. Middle to lower portion of capsule epidermis. All from T. Peng et al. 20120715-7 (holotype HSNU).
FIGURE 4 in Reappraisal of Dendroceros cucullatus (Dendrocerotaceae, Anthocerotophyta)
FIGURE 4. SEM photos of Dendroceros difficilis Steph. A. Proximal view of spore. B. High magnification of the proximal face with densely wart-like structures. C. Distal view of spore. D. High magnification of the distal face with spinules and irregular ridges. All from S. Chantanaorrapint, J. Inuthai & C. Promma 1950 (PSU).
FIGURE 3. Dendroceros difficilis Steph. A–B in Reappraisal of Dendroceros cucullatus (Dendrocerotaceae, Anthocerotophyta)
FIGURE 3. Dendroceros difficilis Steph. A–B. Transverse section of costae. C. Thallus margin. D–F. Cells of thallus lamina, D from margin, E from middle, F near costa. G. Epidermal cells of capsule. H. Pseudoelater. All from V. Schiffner 2 (holotype G).
FIGURE 2 in Reappraisal of Dendroceros cucullatus (Dendrocerotaceae, Anthocerotophyta)
FIGURE 2. SEM photos of Dendroceros cucullatus Steph. A. Thallus with involucre. B, F. Proximal view of spores. C. High magnification of the proximal face showing irregularly ridges with wart-like structure. D, G. Distal view of spores. F. High magnification of the distal face showing spinules and irregular ridges. A–E. from C.M. Weber 1341 (holotype G). F–G. from S. Chantanaorrapint & C. Promma 2096 (PSU).
FIGURE 3 in Checklist of Bryophytes (Anthocerotophyta, Bryophyta and Marchantiophyta) of the state of Maranhão, Brazil
FIGURE 3. Distribution of bryophyte collections in the territory of the state of Maranhão, Brazil.
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