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18 results for “Gelidiaceae”
FIGURE 5 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 5. Habit of the Gelidiaceae species. A–B. Gelidium crinale (A:SP469061, B:SP469067). Scale bar = 1 cm. C. Gelidium floridanum (SP469068). Scale bar = 2 cm. D. Gelidium lineare (SP469091). Scale bar = 1 cm. E. Gelidium microdonticum (SP469070). Scale bar = 0.5 cm.
FIGURE 6. A–D. Gelidium crinale. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 6. A–D. Gelidium crinale. A. Detail of the apical portion showing the prominent apical cell (arrow) (SP469067). Scale bar = 25 μm. B. Cross section of the middle region of the main branch, showing abundant rhizines between medulla and inner cortex (SP469061). Scale bar = 20 μm. C. Tetrasporangial branch (SP469061). Scale bar = 250 μm. D. Cross section of the tetrasporangial branch, showing tetrasporangia and presence of sterile margin (SP469061). Scale bar = 100 μm. E–J. Gelidium floridanum (SP469068). E. Detail of the apical portion showing the apical cell (arrow). Scale bar = 25 μm. F. Cross section of the middle region of the main branch showing rhizines in the medullary region. Scale bar = 20 μm. G. Tetrasporangial branch. Scale bar = 250 μm. H. Cross section of the tetrasporangial branch, showing sterile margin. Scale bar = 100 μm. I. Female gametophyte branches with cystocarps. Scale bar = 2 mm. J. Cross section of bilocular cystocarp showing carposporangia produced in both sides. Scale bar = 100 μm.
FIGURE 2 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 2. Bayesian inference (BI) phylogenetic tree from the concatenated datasets (rbcL, cox1) of the Gelidiellaceae and Gelidiaceae. A posterior probability values (higher than 0.8) and Maximum Likelihood (ML) Bootstrap values for 1000 replicates (higher than 50) are marked on the branches. Sequences of Brazilian specimens are in bold. Sequences with '*' were genereted in this study. GenBank accession numbers are in brackets followed by the collection site.
FIGURE 1. cox1 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 1. cox1 Neighbor-Joining tree representing specimens of Gelidiales from Brazil. Bootstrap values for 2000 replicates are represented on the branches (only when higher than 60). Sequences of Brazilian specimens are in bold. Sequences with '*' were genereted in this study. GenBank accession numbers are in brackets followed by the collection site.
FIGURE 9 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 9. Gelidium calidum Jamas, Iha, M.T. Fujii sp. nov. (SP469074) A. Detail of the apical portion of the branch showing prominent apical cell (arrow). Scale bar = 25 μm. B. Cross section in the middle region of the vegetative branch. Scale bar = 50 μm. C. Stoloniferous branch with brush-like holdfast. Scale bar = 250 μm. D. Cross section of stoloniferous branch showing disorganized rhizoidal filaments produced by the internal cortical cells. Scale bar = 25 μm. E. Detail of the tetrasporangial branch. Scale bar = 250 μm. F. Cross section of tetrasporangial branch showing absence of sterile margin. Scale bar = 100 μm. G. Detail of female gametophyte branch with cystocarp. Scale bar = 250 μm. H. Cross section of the mature cystocarp with carposporangia produced in both sides of locule. Scale bar = 25 μm.
FIGURE 8. A–C in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 8. A–C. Variation in gross morphology for Gelidium calidum Jamas, Iha, M.T. Fujii sp. nov. in Brazil. Scale bar = 1 cm. A–B. Abundantly branched (SP469073, SP469072). C. Slightly branched (SP469074).
FIGURE 7. A–F. Gelidium lineare. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 7. A–F. Gelidium lineare. A. Detail of the apical portion showing the apical cell between two lobes (SP469087). Scale bar = 25 μm. B. Cross section of the middle region of the the main branch (SP469087). Scale bar = 100 μm. C. Detail of tetrasporangial branch (SP469091). Scale bar = 250 μm. D. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia (SP469091). Scale bar = 100 μm. E. Detail of male gametophyte branches, which may have more than one sorus per branch (SP469087). Scale bar = 500 μm. F. Cross section of male gametophyte branch, showing spermatia originated by transverse divisions (arrow) of elongated outer cortical cells (SP469087). Scale bar = 20 μm. G–K. Gelidium microdonticum (SP469070). G. Detail of the apical portion showing the apical cell between two lobes. Scale bar = 100 μm. H. Cross section of the middle region of the the main branch. Scale bar = 100 μm. I. Detail of the thallus, showing abundant rhizines in the medullary region. Scale bar = 250 μm. J. Tetrasporangial branch. Scale bar = 100 μm. K. Cross section of tetrasporangial branch, showing cruciately divided tetrasporangia. Scale bar = 100 μm.
FIGURE 10 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 10. Map of the geographical distribution of Gelidiellaceae and Gelidiaceae in Brazil. In bold are species confirmed in this work and by Iha et al. (2015) by morphology and molecular tools. Map was drawn from the cartographic database of the Instituto Brasileiro de Geografia e Estatística (IBGE).
FIGURE 4. A–E. Gelidiella acerosa. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 4. A–E. Gelidiella acerosa. A. Detail of the apical portion showing the prominent apical cell (arrow) (SP469045). Scale bar = 25 μm. B. Cross section of the middle region of the main branch (SP469045). Scale bar = 100 μm. C. Detail of main branch showing the transition from the cortex to the medulla (SP469045). Scale bar = 25 μm. D. Detail of the tetrasporangial branch with tetrasporangia (SP469046). Scale bar = 100 μm. E. Cross section of the tetrasporangial branch, showing tetrasporangia cruciately divided, with no sterile margin (SP469046). Scale bar = 100 μm. F–J. Gelidiella flabella (SP469052). F. Apical cell slightly different from the surrounding cells (arrow). Scale bar = 25 μm. G. Cross section of the middle region of the main branch. Scale bar = 250 μm. H. Detail of the cross section of the thallus showing the transition from cortex to medulla. Scale bar = 25 μm. I. Holdfast originated as independent rizoidal filaments. Scale bar = 100 μm. J. Cross section of the stoloniferous branch showing the origin of rhizoidal filaments from the outer cortical cell (arrow). Scale bar = 25 μm. K–N. Millerella myrioclada (SP469055). K. Detail of the acute apex with prominent apical cell. Scale bar = 25 μm. L. Cross section of the middle region of the main branch, showing row of medullary cells (arrow). Scale bar = 25 μm. M.Prostrate system. Scale bar = 250 μm. N. Tetrasporangial branch. Scale bar = 100 μm.
FIGURE 3 in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum
FIGURE 3. Habit of the Gelidiellaceae species. A. Gelidiella acerosa (SP469049). Scale bar = 1 cm. B. Gelidiella flabella (SP469052). Scale bar = 1 cm. C. Millerella myrioclada (SP469057). Scale bar = 1 cm. D. Millerella myrioclada (SP469057). Scale bar = 0.5 cm.
FIGURE 3 in A reassessment of Gelidium divaricatum G. Martens (Gelidiaceae, Rhodophyta) from Hong Kong, including Gelidiophycus hongkongensis sp. nov.
FIGURE 3. Gelidiophycus hongkongensis sp. nov. A, HOLOTYPE habit before pressing on herbarium paper, tetrasporic (HAST#142344); B, isotype habit before pressing on herbarium paper, sterile (#NTOU14iii2017-gh-2); C, part of a tetrasporangial thallus showing tetrasporangia branching pattern; D, transverse section through a young branch and showing rhizoid filament initials issuing from medullary cells (arrows); E, transverse section through a main axis and showing numerous rhizoidal filaments (arrows) surrounding medullary cells; F, tetrasporangial sori borne on swelled, distal ends of branches; G, transverse section through a young tetrasporangia-bearing branch showing tetrasporangial initial (arrowhead) cutting off from an inner cortical cell (white arrow) and elongated tetrasporangia (black arrows); H, close up of cruciately cleaved tetrasporangia, noting that the longitudinal cleavages at upper (large arrows) and lower (small arrows) portions not in the same planes.
FIGURE 2. Gelidium divaricatum G in A reassessment of Gelidium divaricatum G. Martens (Gelidiaceae, Rhodophyta) from Hong Kong, including Gelidiophycus hongkongensis sp. nov.
FIGURE 2. Gelidium divaricatum G. Martens. Habit and vegetative structure (specimens from Hair Pin Beach, Stanley, Hong Kong Island). A, epitype, thallus morphology before losing color (HAST#142346); B, mat-forming thalli with intermingling branches; C, longitudinal section through a branch; D. designated lectotype based on Fig. 4, a hand drawing illustration in Martens (1866: pl. VIII); E, transverse section through a young branch; F, transverse section through a main axis.
FIGURE 1 in A reassessment of Gelidium divaricatum G. Martens (Gelidiaceae, Rhodophyta) from Hong Kong, including Gelidiophycus hongkongensis sp. nov.
FIGURE 1. Maximum likelihood tree (ln L = –11714.51) based on rbcL DNA sequences of the Gelidiales. Numbers above branches are Maximum likelihood (left) and Maximum parsimony (right) bootstrap values. '*' and '-' refer to bootstrap values 100% and <50%, respectively.
FIGURE 4 in Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence
FIGURE 4. Comparison between the cross section of the medial region of the thallus. Fig. 4A Gelidium guimaraesiae. Scale bar = 25 μm. Fig. 4B. Gelidium floridanum. Scale bar = 25 μm.
FIGURE 5 in Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence
FIGURE 5. Reproductive aspects of Gelidium guimaraesiae sp. nov. Fig. 5A. Tetrasporophyte, arrows indicate tetrasporangial sorus. Scale bar = 0.5 cm. Fig. 5B. Tetrasporangial sori. Scale bar = 100 μm. Fig. 5C. Transverse section of a tetrasporangial with decussately divided tetrasporangia. Scale bar = 25 μm. Fig. 5D. Female gametophyte, arrows indicate cystocarps. Scale bar = 0.5 cm. Fig. 5E. Cystocarp. Scale bar = 100 μm. Fig. 5F. Transverse section of a bilocular cystocarp. Scale bar = 25 μm.
FIGURE 3 in Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence
FIGURE 3. Vegetative aspects of Gelidium guimaraesiae sp. nov. Fig. 3A. Holotype (SP428772). Scale bar = 0.5 cm. Fig. 3B. Habit of paratypes (SP469012). Scale bar = 0.5 cm. Fig. 3C. Stoloniferous axes with haptera. Scale bar = 250 μm. Fig. 3D. Transverse section through stolon and longitudinal section of brush-like haptera. Scale bar = 25 μm. Fig. 3E. Apex. Scale bar = 25 μm. Fig. 3F. Transverse section of stolon. Scale bar = 25 μm.
FIGURE 2 in Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence
FIGURE 2. Bayesian inference tree based on analysis of cox1 sequences. Numbers above or below the nodes show support values (PP/ BP). Names in bold refer to the species of this study, Gelidium floridanum and G. guimaraesiae. Numbers in parentheses indicate number of sequences sampled. * is holotype.
FIGURE 1 in Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence
FIGURE 1. Bayesian inference tree based on analysis of rbcL sequences. Numbers above or below the nodes show support values (PP/ BP). Names in bold refer to the species of this study, Gelidium floridanum and G. guimaraesiae. Numbers in parentheses indicate number of sequences sampled. * is holotype or topotype.
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