Grateloupia lithophila   Borgesen,  1938 (Algae)
Organism information awaits expert curation
Taxonomy
Kingdom:Plantae
Phylum:Rhodophyta
Class: Florideophyceae
Order:Halymeniales
Family:Halymeniaceae

Image copyrights: NIO, Goa

Description
Plant in dense tufts on hard substratum; thallus flat simple or irregularly divided, 10-15 cm long, 0.5-2 cm broad, linear lanceolate tapering from the middle to both the ends, sinuate and undulating. Upper ends of the fronds, truncate becoming more or less broadly rounded. Proliferation arising from upper end and from the sides of fronds. Section of thallus with a central medullory and peripheral cortical potion. Cortical portion of short dichotomously branched filaments. Cells of medullary region adjoining cortex, about the same size as cells of cortex, regular in shape. Inner medullary portion of very loosely lying stellate cells, either directly connected with one another or attached by long monosiphonous rhizoids.

Tetrasporangia one celled, scattered over the surface of the thallus, occurring as lateral branches, arising secondarily from the cortical filaments. Tetraspores cruciately divided. Carpogonia and auxiliary cells on special clusters of branches, the ampullae. Cystocarp sunk in the thallus with an ostiole at top, scattered all over the thallus, appearing as dark specks, spherical, 120-150 µ in diameter. Substance membranaceous, slippery, gelatinous.

This species attains its luxuriance during the months of October to December and in January it reaches it maximum growth. By February the plant dries and disappears by April.


Synonym (s)
Grateloupia prolongata Borgesen, 1938

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Human food, source of agar, material for paste)

Ecology
Habitat:  Rocky, Sandy, Coastal

Biogeography


• Kerala, Chowara Coast INDIA
• Tamil Nadu, Tuticorin (Lat: 8.78) (Long: 78.13) INDIA
• Tamil Nadu, Krusadai Island (Lat: 9.23) (Long: 79.22) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Andhra Pradesh, Waltair (Lat: 17.72) (Long: 83.33) INDIA
• Andhra Pradesh, Vishakhapatnam (Lat: 17.7) (Long: 83.3) INDIA
• Maharashtra INDIA
• Kerala INDIA
• Goa INDIA
• Karnataka INDIA
• Tamil Nadu INDIA
• Andhra Pradesh INDIA
• Tamil Nadu, Tiruchendur (Lat: 8.48) (Long: 78.12) INDIA
• Kerala, Kochi (Lat: 9.97) (Long: 76.23) INDIA
• Kerala, Kovalam INDIA
• Tamil Nadu, Chennai (Lat: 13.09) (Long: 80.29) INDIA
• Karnataka, Mangalore (Lat: 12.87) (Long: 74.88) INDIA
• Tamil Nadu, Mandapam (Lat: 9.28) (Long: 79.12) INDIA
• Tamil Nadu, Kalpakkam (Lat: 12.57) (Long: 80.17) INDIA
• Andhra Pradesh, Vishakhapatnam (Lat: 17.73) (Long: 83.27) INDIA
• Tamil Nadu, Mahabalipuram (Lat: 12.63) (Long: 80.17) INDIA
• Tamil Nadu, Pudumadam Coast (Lat: 9.25) (Long: 79) INDIA (Record: 07/2007, 08/2007)
• INDIA
• SRI LANKA
• YEMEN
• Tamil Nadu, Arockiapuram Coast (Lat: 8.10) (Long: 77.57) INDIA (Record: 09/1995-11/1995)
• Tamil Nadu, Mandapam (Lat: 9.26) (Long: 79.11) INDIA
• Orissa, Paradeep-on-sea (Lat: 20.29) (Long: 86.71) INDIA (Record: 24/12/2004)
• Tamil Nadu, Gulf of Mannar, Pudumadam INDIA
• Tamil Nadu, Off Tuticorin INDIA (Record: 12/1958-05/1959) (Depth: 14-18 mts)
• Andhra Pradesh, Vishakhapatnam (Lat: 17.24) (Long: 83.27) INDIA (Record: 03/2008-02/2009)
• Andhra Pradesh, Vishakhapatnam (Lat: 17.75) (Long: 83.35) INDIA (Record: 03/2008-02/2009)
• Tamil Nadu, Tuticorin INDIA
• Tamil Nadu, Manapad INDIA
• Tamil Nadu, Tiruchendur INDIA
• Tamil Nadu, Muttam INDIA
• Kerala INDIA (Record: 08/1986-05/1987)
• Tamil Nadu, Mandapam INDIA
• Maharashtra, Mumbai INDIA
• Karnataka, Karwar INDIA
• Kerala, Kollam INDIA
• Tamil Nadu, Chennai INDIA
• Andhra Pradesh, Vishakhapatnam INDIA
• Karnataka, Karwar INDIA (Record: 01/1985-12/1985)
• Karnataka, Honavar INDIA (Record: 01/1985-12/1985)
• Karnataka, Bhatkal INDIA (Record: 01/1985-12/1985)
• Tamil Nadu, Gulf of Mannar INDIA
• Karnataka INDIA (Record: 2005-2006)

Literature Source(s)
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  • Sundaram, KS; Sarvesan, R; Mohamed, KH and Shanbhogue, SL (1969) Catalogue of molluscs, prawns, stomatopods and marine algae in the reference collections of the central marine fisheries research institute Bulletin Of Central Marine Fisheries Research Institute CMFRI, Cochin 9 1-52 Available at - http://eprints.cmfri.org.in/570/1/Bulletin_9.pdf
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  • Lakshmi, KP and Rao, GMN (2009) Some numerical studies on marine algae of Visakhapatnam coast Journal of Algal Biomass Utilization Phyco Spectrum Inc 1 (1) 60–85 Available at - phycospectrum.com/paper6vol1no1.pdf
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  • Kaladharan, P; Zacharia, PU and Vijayakumaran, K (2011) Coastal and marine floral biodiversity along the Karnataka coast Journal of the Marine Biological Association of India Marine Biological Association of India, Cochin, India 53 (1) 121 - 129 Available at - http://eprints.cmfri.org.in/8710/1/121--129--P._Kaladharan.pdf
  • Kaladharan, P; Zacharia, PU and Vijayakumaran, K (2011) Coastal and Marine floral biodiversity along the Karnataka coast Journal of the Marine Biological Association of India The Marine Biological Association of India 53(1) 121-129 Available at - NIO,Goa

Page last updated on:2011-11-21

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