Chondria collinsiana Howe 1920
Chondria collinsiana (Figs 1 C–J) Thallus erect, cylindrical, delicate, of soft consistency, 2.5–4.0 cm high, brownish, fixed to the substrate by a discoid holdfast and rhizoids along the basal region of the thallus, presence of anastomoses in the basal region of the thallus. Ramification radial, de...
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2011
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Online Access: | https://dx.doi.org/10.5281/zenodo.4923922 https://zenodo.org/record/4923922 |
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ftdatacite:10.5281/zenodo.4923922 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
unknown |
topic |
Biodiversity Taxonomy Plantae Rhodophyta Florideophyceae Ceramiales Rhodomelaceae Chondria Chondria collinsiana |
spellingShingle |
Biodiversity Taxonomy Plantae Rhodophyta Florideophyceae Ceramiales Rhodomelaceae Chondria Chondria collinsiana Santos, Alana Araujo Dos Moura, Carlos Wallace Do Nascimento Chondria collinsiana Howe 1920 |
topic_facet |
Biodiversity Taxonomy Plantae Rhodophyta Florideophyceae Ceramiales Rhodomelaceae Chondria Chondria collinsiana |
description |
Chondria collinsiana (Figs 1 C–J) Thallus erect, cylindrical, delicate, of soft consistency, 2.5–4.0 cm high, brownish, fixed to the substrate by a discoid holdfast and rhizoids along the basal region of the thallus, presence of anastomoses in the basal region of the thallus. Ramification radial, dense, with 3–4 orders of branches. Branches of the last order with constricted bases, apices truncated and with a slight apical depression. The basal region of the principal axis is (580–)610(–640) µm in diameter; the median region (500–)540(–600) µm in diameter; and the apical region (300–)360(–430) µm in diameter. First order branches 500–530 µm in diameter; second order branches 300– 460 µm in diameter; and third order branches 120–330 µm in diameter. Trichoblasts present on the apices of truncated branches. Trichoblast scars frequent at the distal region of the thallus. Thallus with polysiphonic organization; transversal cuts show 5 periaxial cells (75.0–)78.0(–112.5) µm long and 62.5–80.0 µm in diameter, with lenticular thickening and wrapped by 3 layers of medullar cells, colorless, (30–)48(–62) µm in diameter; cortical region with 1 layer of pigmented cells, (10–)13(–20) µm in diameter. In surface view, cortical cells elongated, (70.0–)100.0(–112.5) µm long and 17–22 µm in diameter, with pit connections between the cells. Cistocarps spherical to ovoid, not adnate, 0.5–1.0 mm long and 0.5 mm in diameter, growing on the last branchlets, with protuberance at base. Spermatangial bodies laminar, discoid, (210–)250(– 330) µm in diameter, with rounded spermacia, wrapped in 1 layer of sterile and rectangular cells, 3–5 on the apices branches and branchlets. Tetrasporangia formed from the pericentral cells on the branchlets; in transversal section, 3–5 tetrahedral tetrasporangia, 60–80 µm in diameter. Representative specimens examined:— BRAZIL. Bahia: Ilha de Itaparica, Vera Cruz, Praia da Penha, 18/ III/2007, Moura (HUEFS 130885); 14/VII/2007, Alves & Peixoto (HUEFS 130887). Praia da Barra Grande, 19/III/2007, Santos (HUEFS 147560); 18/V/2007, Santos (HUEFS 147561); 14/VII/2007, Santos (HUEFS 147562); 27/IX/2007, Oliveira & Oliveira (HUEFS 130890). Geographic distribution along the west coast of Atlantic Ocean:—Florida, Bahamas, Belize, Cuba, Venezuela, Brazil (Taylor 1960, Ganesan 1989, Littler et al. 1995, Littler & Littler 2000, Bacci 2005, Suárez 2005, Ribeiro 2008). Comments:— Chondria collinsiana is restricted to the Caribbean Sea, the South Atlantic, and the Indian Ocean (Jaasund 1976, Littler et al. 1995, Bacci 2005, Ribeiro 2008). Along the Brazilian coast this species was previously known only from the states of Espírito Santo (Bacci 2005) and Rio de Janeiro (Ribeiro 2008). The present study expanded the distribution of this species to the northeastern coast of Brazil. The specimens analyzed are in agreement with the characteristics described and illustrated by Littler et al. (1995) and Bacci (2005). According to Bacci (2005), this species differs from the others along the coast of the states of Espírito Santo and São Paulo by having an erect thallus, delicate, densely radially branched, slight depressions at the apices of the branches and branchlets, and by the presence of lenticular thickenings on the medullar cell walls. In addition to these morphological characteristics, the shapes of the sterile cells of the spermatangial bodies and the characteristics of the cistocarp are useful in identifying species of C hondria C.Agardh (Bacci 2005). This is the first report of masculine gametophytes of this species from the Brazilian coast. They were described earlier by Littler et al. (1995) for the flora of Belize. The spermatangial bodies of Chondria collinsiana are laminar, discoidal, with rounded spermacia, surrounded by a layer of rectangular sterile cells, as can be seen in Fig. 1I. Thalli were observed growing isolated on the thallus of A. crenulata , sometimes forming dense tufts when attachments are present in the basal region of the thallus. : Published as part of Santos, Alana Araujo Dos & Moura, Carlos Wallace Do Nascimento, 2011, Additions to the epiphytic macroalgae flora of Bahia and Brazil, pp. 53-64 in Phytotaxa 28 on pages 56-57, DOI: 10.11646/phytotaxa.28.1.7, http://zenodo.org/record/4894284 : {"references": ["Taylor, W. R. (1960) Marine algae of the Eastern tropical and subtropical coasts of the Americas. Michigan Press, Michigan, 870 pp.", "Ganesan, E. K. (1989) A catalog of benthic marine algae and seagrass of Venezuela. Conicit Fondo Editorial, Caracas, 237 pp.", "Littler, D. S., Littler, M. M. & Brooks. B. L. (1995) Marine algae and seagrasses from the Tobacco Range Fracture Zone, Belize, C. A. Atoll Research Bulletin 429: 1 - 41.", "Littler, D. S. & Littler, M. M. (2000) Caribbean Reef Plants. OffShore Graphics, Inc. Washington, 542 pp.", "Bacci, D. S. (2005) Estudos taxonomicos do genero Chondria (Ceramiales, Rhodophyta) no litoral dos estados de Sao Paulo e Espirito Santo, Brasil. Dissertacao de Mestrado em Botanica. Instituto de Botanica da Secretaria de Estado do Meio Ambiente, Sao Paulo, 114 pp.", "Suarez, A. M. (2005) Lista de las macroalgas marinhas cubanas. Revista de Investigacao Marina 26: 93 - 148.", "Ribeiro, C. M. (2008) Taxonomia do genero Chondria C. Agardh (Rhodomelaceae, Rhodophyta) do estado do Rio de Janeiro. Dissertacao de Mestrado, UFRJ, Rio de Janeiro, 59 pp.", "Jaasund, E. (1976) Intertidal seaweeds in Tanzania. University of Tromso, Tromso, 159 pp."]} |
format |
Text |
author |
Santos, Alana Araujo Dos Moura, Carlos Wallace Do Nascimento |
author_facet |
Santos, Alana Araujo Dos Moura, Carlos Wallace Do Nascimento |
author_sort |
Santos, Alana Araujo Dos |
title |
Chondria collinsiana Howe 1920 |
title_short |
Chondria collinsiana Howe 1920 |
title_full |
Chondria collinsiana Howe 1920 |
title_fullStr |
Chondria collinsiana Howe 1920 |
title_full_unstemmed |
Chondria collinsiana Howe 1920 |
title_sort |
chondria collinsiana howe 1920 |
publisher |
Zenodo |
publishDate |
2011 |
url |
https://dx.doi.org/10.5281/zenodo.4923922 https://zenodo.org/record/4923922 |
long_lat |
ENVELOPE(16.546,16.546,68.801,68.801) ENVELOPE(-61.417,-61.417,-64.367,-64.367) ENVELOPE(-66.590,-66.590,-66.803,-66.803) ENVELOPE(-145.700,-145.700,-86.450,-86.450) ENVELOPE(28.483,28.483,66.450,66.450) |
geographic |
Indian Tromso Barra Holdfast Suarez Moura |
geographic_facet |
Indian Tromso Barra Holdfast Suarez Moura |
genre |
Tromso University of Tromso |
genre_facet |
Tromso University of Tromso |
op_relation |
http://zenodo.org/record/4894284 http://publication.plazi.org/id/FFF2FFAF743F3A4CEB18FFC9682A023C https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.28.1.7 http://zenodo.org/record/4894284 http://publication.plazi.org/id/FFF2FFAF743F3A4CEB18FFC9682A023C https://dx.doi.org/10.5281/zenodo.4894288 https://dx.doi.org/10.5281/zenodo.4923921 https://zenodo.org/communities/biosyslit |
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Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5281/zenodo.4923922 https://doi.org/10.11646/phytotaxa.28.1.7 https://doi.org/10.5281/zenodo.4894288 https://doi.org/10.5281/zenodo.4923921 |
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spelling |
ftdatacite:10.5281/zenodo.4923922 2023-05-15T18:33:57+02:00 Chondria collinsiana Howe 1920 Santos, Alana Araujo Dos Moura, Carlos Wallace Do Nascimento 2011 https://dx.doi.org/10.5281/zenodo.4923922 https://zenodo.org/record/4923922 unknown Zenodo http://zenodo.org/record/4894284 http://publication.plazi.org/id/FFF2FFAF743F3A4CEB18FFC9682A023C https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.28.1.7 http://zenodo.org/record/4894284 http://publication.plazi.org/id/FFF2FFAF743F3A4CEB18FFC9682A023C https://dx.doi.org/10.5281/zenodo.4894288 https://dx.doi.org/10.5281/zenodo.4923921 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Plantae Rhodophyta Florideophyceae Ceramiales Rhodomelaceae Chondria Chondria collinsiana article-journal ScholarlyArticle Text Taxonomic treatment 2011 ftdatacite https://doi.org/10.5281/zenodo.4923922 https://doi.org/10.11646/phytotaxa.28.1.7 https://doi.org/10.5281/zenodo.4894288 https://doi.org/10.5281/zenodo.4923921 2022-03-10T13:46:38Z Chondria collinsiana (Figs 1 C–J) Thallus erect, cylindrical, delicate, of soft consistency, 2.5–4.0 cm high, brownish, fixed to the substrate by a discoid holdfast and rhizoids along the basal region of the thallus, presence of anastomoses in the basal region of the thallus. Ramification radial, dense, with 3–4 orders of branches. Branches of the last order with constricted bases, apices truncated and with a slight apical depression. The basal region of the principal axis is (580–)610(–640) µm in diameter; the median region (500–)540(–600) µm in diameter; and the apical region (300–)360(–430) µm in diameter. First order branches 500–530 µm in diameter; second order branches 300– 460 µm in diameter; and third order branches 120–330 µm in diameter. Trichoblasts present on the apices of truncated branches. Trichoblast scars frequent at the distal region of the thallus. Thallus with polysiphonic organization; transversal cuts show 5 periaxial cells (75.0–)78.0(–112.5) µm long and 62.5–80.0 µm in diameter, with lenticular thickening and wrapped by 3 layers of medullar cells, colorless, (30–)48(–62) µm in diameter; cortical region with 1 layer of pigmented cells, (10–)13(–20) µm in diameter. In surface view, cortical cells elongated, (70.0–)100.0(–112.5) µm long and 17–22 µm in diameter, with pit connections between the cells. Cistocarps spherical to ovoid, not adnate, 0.5–1.0 mm long and 0.5 mm in diameter, growing on the last branchlets, with protuberance at base. Spermatangial bodies laminar, discoid, (210–)250(– 330) µm in diameter, with rounded spermacia, wrapped in 1 layer of sterile and rectangular cells, 3–5 on the apices branches and branchlets. Tetrasporangia formed from the pericentral cells on the branchlets; in transversal section, 3–5 tetrahedral tetrasporangia, 60–80 µm in diameter. Representative specimens examined:— BRAZIL. Bahia: Ilha de Itaparica, Vera Cruz, Praia da Penha, 18/ III/2007, Moura (HUEFS 130885); 14/VII/2007, Alves & Peixoto (HUEFS 130887). Praia da Barra Grande, 19/III/2007, Santos (HUEFS 147560); 18/V/2007, Santos (HUEFS 147561); 14/VII/2007, Santos (HUEFS 147562); 27/IX/2007, Oliveira & Oliveira (HUEFS 130890). Geographic distribution along the west coast of Atlantic Ocean:—Florida, Bahamas, Belize, Cuba, Venezuela, Brazil (Taylor 1960, Ganesan 1989, Littler et al. 1995, Littler & Littler 2000, Bacci 2005, Suárez 2005, Ribeiro 2008). Comments:— Chondria collinsiana is restricted to the Caribbean Sea, the South Atlantic, and the Indian Ocean (Jaasund 1976, Littler et al. 1995, Bacci 2005, Ribeiro 2008). Along the Brazilian coast this species was previously known only from the states of Espírito Santo (Bacci 2005) and Rio de Janeiro (Ribeiro 2008). The present study expanded the distribution of this species to the northeastern coast of Brazil. The specimens analyzed are in agreement with the characteristics described and illustrated by Littler et al. (1995) and Bacci (2005). According to Bacci (2005), this species differs from the others along the coast of the states of Espírito Santo and São Paulo by having an erect thallus, delicate, densely radially branched, slight depressions at the apices of the branches and branchlets, and by the presence of lenticular thickenings on the medullar cell walls. In addition to these morphological characteristics, the shapes of the sterile cells of the spermatangial bodies and the characteristics of the cistocarp are useful in identifying species of C hondria C.Agardh (Bacci 2005). This is the first report of masculine gametophytes of this species from the Brazilian coast. They were described earlier by Littler et al. (1995) for the flora of Belize. The spermatangial bodies of Chondria collinsiana are laminar, discoidal, with rounded spermacia, surrounded by a layer of rectangular sterile cells, as can be seen in Fig. 1I. Thalli were observed growing isolated on the thallus of A. crenulata , sometimes forming dense tufts when attachments are present in the basal region of the thallus. : Published as part of Santos, Alana Araujo Dos & Moura, Carlos Wallace Do Nascimento, 2011, Additions to the epiphytic macroalgae flora of Bahia and Brazil, pp. 53-64 in Phytotaxa 28 on pages 56-57, DOI: 10.11646/phytotaxa.28.1.7, http://zenodo.org/record/4894284 : {"references": ["Taylor, W. R. (1960) Marine algae of the Eastern tropical and subtropical coasts of the Americas. Michigan Press, Michigan, 870 pp.", "Ganesan, E. K. (1989) A catalog of benthic marine algae and seagrass of Venezuela. Conicit Fondo Editorial, Caracas, 237 pp.", "Littler, D. S., Littler, M. M. & Brooks. B. L. (1995) Marine algae and seagrasses from the Tobacco Range Fracture Zone, Belize, C. A. Atoll Research Bulletin 429: 1 - 41.", "Littler, D. S. & Littler, M. M. (2000) Caribbean Reef Plants. OffShore Graphics, Inc. Washington, 542 pp.", "Bacci, D. S. (2005) Estudos taxonomicos do genero Chondria (Ceramiales, Rhodophyta) no litoral dos estados de Sao Paulo e Espirito Santo, Brasil. Dissertacao de Mestrado em Botanica. Instituto de Botanica da Secretaria de Estado do Meio Ambiente, Sao Paulo, 114 pp.", "Suarez, A. M. (2005) Lista de las macroalgas marinhas cubanas. Revista de Investigacao Marina 26: 93 - 148.", "Ribeiro, C. M. (2008) Taxonomia do genero Chondria C. Agardh (Rhodomelaceae, Rhodophyta) do estado do Rio de Janeiro. Dissertacao de Mestrado, UFRJ, Rio de Janeiro, 59 pp.", "Jaasund, E. (1976) Intertidal seaweeds in Tanzania. University of Tromso, Tromso, 159 pp."]} Text Tromso University of Tromso DataCite Metadata Store (German National Library of Science and Technology) Indian Tromso ENVELOPE(16.546,16.546,68.801,68.801) Barra ENVELOPE(-61.417,-61.417,-64.367,-64.367) Holdfast ENVELOPE(-66.590,-66.590,-66.803,-66.803) Suarez ENVELOPE(-145.700,-145.700,-86.450,-86.450) Moura ENVELOPE(28.483,28.483,66.450,66.450) |