Gelidiella acerosa   (Forsskal) Feldmann & G. Hamel,  1934 (Algae)
Organism information awaits expert curation
Taxonomy
Kingdom:Plantae
Phylum:Rhodophyta
Class: Florideophyceae
Order:Gelidiales
Family:Gelidiellaceae

Description
Color: Brownish-red; dull purplish

Thallus form and type: Remiform and cartilaginous

Substratum: Rocks, coralline stones and calcareous substrata

Occurrence: Lower mid littoral zone, tidal flat pools

Season: November-April

Abundance: Moderate

Thallus 1-7 cm tall, about 1mm broad, composed of slender, cylindrical stolens that give rise to erect and decumbent branches above and coarse, short and simply branched rhizoids below; plants tufted, wiry, robust, cartilaginous, erect axes sparsely branched, provided with short determinate branchlets; attaching freely by haptera bearing erect or arcuate-recurved branches.

Tetrasporangia around the apical swollen part of the branchlets, cruciately divided.


Synonym (s)
Echinocaulon acerosus (Forsskal) Boergesen, 1932
(Homotypic synonym)
Echinocaulon spinellum Kutzing, 1843
(Heterotypic synonym)
Fucus acerosus Forsskal, 1775
(Homotypic synonym)
Fucus corneus var. setaceus Turner, 1811
(Heterotypic synonym)
Fucus corneus var. spiniformis (J. V. Lamouroux) Turner, 1811
(Heterotypic synonym)
Fucus rigidus Vahl, 1802
(Heterotypic synonym)
Fucus spiniformis J. V. Lamouroux, 1805
(Heterotypic synonym)
Gelidiella acerosa f. minima Sreenivasa Rao, 1971
(Heterotypic synonym)
Gelidiopsis rigida (C. Agardh) Weber-van Bosse, 1904
(Heterotypic synonym)
Gelidium acerosa forma minima Silva et al., 1996
(Other)
Gelidium corneum var. setaceum (Turner) Montagne, 1846
(Heterotypic synonym)
Gelidium rigidum (C. Agardh) Greville, 1830
(Heterotypic synonym)
Gelidium rigidum Silva et al., 1996
(Other)
Gelidium rigidum var. radicans (Bory de Sant-Vincent, 1851)
Gelidium spiniforme (J. V. Lamouroux) J. V. Lamouroux, 1813
(Heterotypic synonym)
Sphaerococcus rigidus C. Agardh, 1822
(Heterotypic synonym)
Gelidium ramelliferum Kutzing, 1863
(Heterotypic synonym)
Echinocaulon ramelliferum (Kutzing) Kutzing, 1868
(Heterotypic synonym)
Gelidium pulchellum var. setaceum (Turner) Batters, 1902
(Heterotypic synonym)
Gelidiella acerosa (Forsskal) J. Feldmann & G. Hamel, 1934
Gelidium micropterum Desikachary, 1967
(Misapplied name)
Gelidiopsis rigida var. semipinnata Weber-van Bosse, 1928

Common Name (s)
• Marikkolundu Pasi (Tamil)
Economic Importance and Threats
Importance:  Commercial
(Yields agar, used for making porridge. Jelly prepared from agar is consumed as food.)

Ecology
Habitat:  Reef Associated, Estuarine, Rocky, Coastal

Biogeography


• Lakshadweep, Minicoy Island INDIA
• Gujarat, Jalleshwar shore (Lat: 20.9) (Long: 70.37) INDIA
• Gujarat, Okha Port (Lat: 22.45) (Long: 69.07) INDIA
• Tamil Nadu, Gulf of Mannar (Lat: 8.5) (Long: 79) INDIA
• Tamil Nadu, Ramnad INDIA
• Gujarat, Saurashtra (Lat: 21.97) (Long: 70.5) INDIA
• Gujarat, Porbandar INDIA
• Gujarat, Veraval INDIA
• Gujarat, Okha (Lat: 22.47) (Long: 69.08) INDIA
• Tamil Nadu, Mandapam (Lat: 9.28) (Long: 79.12) INDIA
• Lakshadweep, Kavaratti (Lat: 10.57) (Long: 72.62) INDIA
• Lakshadweep, Agatti (Lat: 10.83) (Long: 72.2) INDIA
• Tamil Nadu, Muthupet Lagoon (Lat: 10.76) (Long: 79.85) INDIA (Record: 05/2006-06/2006)
• Lakshadweep, Minicoy (Lat: 11) (Long: 72.5) INDIA
• Lakshadweep (Lat: 11) (Long: 72.5) INDIA
• Gujarat, Dwarka Coast (Lat: 18.17) (Long: 66.17) INDIA
• Tamil Nadu, Krusadai Island (Lat: 9.23) (Long: 79.22) INDIA
• Gujarat, Okha INDIA
• Gujarat INDIA
• Tamil Nadu, Palk Bay (Lat: 9.5) (Long: 79.25) INDIA
• Tamil Nadu INDIA
• Tamil Nadu, Pamban (Lat: 9.29) (Long: 79.21) INDIA
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Tiruchendur (Lat: 8.48) (Long: 78.12) INDIA
• Andhra Pradesh, Vishakhapatnam (Lat: 17.7) (Long: 83.3) INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands, Nicobar Islands INDIA
• Gujarat, Dwarka Reef INDIA
• Tamil Nadu, Krusadai Island, Galaxea reef INDIA (Record: 1940-1950)
• Tamil Nadu, Kilakarai INDIA (Record: 1996-1999, 2008)
• Tamil Nadu, Kodikkarai (Lat: 10.3) (Long: 79.86) INDIA (Record: 06/2006-09/2006)
• Tamil Nadu, Muthupet Lagoon INDIA (Record: 05/2006-06/2006)
• Tamil Nadu, Pamban INDIA (Record: 1996-1999)
• Tamil Nadu, Rameswaram INDIA (Record: 1996-1999)
• Southwest Coast INDIA (Record: 02/2007)
• Tamil Nadu, Gulf of Mannar, Pudumadam INDIA
• BAHRAIN
• INDIA
• MADAGASCAR
• MALDIVES
• MAURITIUS
• MOZAMBIQUE
• OMAN
• SEYCHELLES
• SRI LANKA
• Gujarat, Veraval (Lat: 20.9) (Long: 70.36) INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• INDIA
• Lakshadweep, Minicoy Lagoon (Lat: 8.25) (Long: 73.05) INDIA (Record: 11/1990-06/1991)
• Gujarat, Okha INDIA
• Gujarat, Dwarka INDIA
• Gujarat, Porbandar INDIA
• Daman and Diu, Diu INDIA
• Gujarat, Veraval INDIA
• Tamil Nadu, Idinthakarai (Lat: 8.16) (Long: 77.71) INDIA (Record: 06/1992-05/1993)
• Tamil Nadu, Tiruchchendur (Lat: 8.5) (Long: 78.13) INDIA (Record: 06/1992-05/1993)
• Tamil Nadu, Mandapam (Lat: 9.26) (Long: 79.11) INDIA
• West Bengal, Sunderban Mangroves (Lat: 21.51) (Long: 88.08) INDIA (Record: 04/2006-11/2006)
• West Bengal, Sunderban Mangroves (Lat: 22.66) (Long: 89.1) INDIA (Record: 04/2006-11/2006)
• Gujarat, Gulf of Kachchh INDIA
• Lakshadweep Islands INDIA (Record: 1977-1979)
• Gujarat, Okha Reef INDIA
• Tamil Nadu, Gulf of Mannar, Pudumadam INDIA
• Tamil Nadu, Manapad INDIA
• Tamil Nadu, Tuticorin INDIA
• Tamil Nadu, Mandapam INDIA
• Andaman and Nicobar Islands, Port Blair INDIA (Record: 01/1978-04/1978)
• Andaman and Nicobar Islands, Car Nicobar INDIA (Record: 01/1978-04/1978)
• Andaman and Nicobar Islands, Katchall INDIA (Record: 01/1978-04/1978)
• Tamil Nadu, Rameswaram INDIA
• Lakshadweep, Kadamatt Island (Lat: 11.18) (Long: 72.76) INDIA
• Lakshadweep, Kadamatt Island (Lat: 11.25) (Long: 72.79) INDIA
• Tamil Nadu, Tiruchendur INDIA
• Andaman and Nicobar Islands, Great Nicobar Island INDIA
• Andaman and Nicobar Islands, Car Nicobar Island INDIA
• Andaman and Nicobar Islands, Katchall INDIA
• Andaman and Nicobar Islands, Nancowry INDIA
• Karnataka INDIA (Record: 2005-2006)
• Andhra Pradesh, Visakhapatnam INDIA
• Gujarat, Kotda INDIA
• Gujarat, Adri INDIA

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