Dictyota cervicornis [Status Unaccepted]   Kutzing,  1859 (Algae)
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Phaeophyceae
Order:Dictyotales
Family:Dictyotaceae

Description
Size: Height 10-25 cm.

Color: Light brown

Thallus form and type: Frondose, narrow and ribbon type

Substratum: Intertidal, coralline substrata

Occurrence: Lower mid littoral zone

Season: November-April

Thallus bushy; Plants growing in dense tufts, forming entangled mass on account of much twisted and intertwined branches; branches often twisted or spiral, apices pointed, attached to the substratum by means of an inconspicuous holdfast. Upper portion above the holdfast more or less dichotomously branched, becoming rather irregularly dichotomous upwards. Branches broader at the base, 0.08-1.5 cm in breadth, becoming narrower upwards, being 2-4 mm broad, margins entire. One component of the ultimate dichotomies commonly remaining simple, undivided, short anther-like, the other divided dichotomously. Thallus internally composed of superficial layers enveloping a middle layer. Cells of the former squarish, thin-walled, richly provided with chromatophores. Cells of the middle layer, large more or less rectangular, thick-walled, poor in contents. Medulla cells in one layer, rectangular, arranged in rows, surface cells in one layer, 3-5 transversing each medulla cell; surface filaments in tufts, more numerous at margins than central axis, soon deciduous.

Plants bearing only tetrasporangia, the latter scattered on both the surfaces of the branches, forming small groups. Sporangia spherical, sometimes associated with hairs.


Synonym (s)
Dictyota indica Silva et al., 1996
Dictyota indica Sonder ex Kutzing, 1859
(Heterotypic synonym)
Dictyota pardalis Kutzing, 1859
(Heterotypic synonym)
Dictyota bartayresiana f. angustiloba Lamouroux, 1860
(Heterotypic synonym)
Dictyota dichotoma var. curvula P. Crouan & H. Crouan, 1878
(Heterotypic synonym)
Dictyota divaricata (J. Agardh) J. Agardh, 1882
(Heterotypic synonym)
Dictyota fasciola Harvey, 1852
Dictyota bartayresiana var. divaricata J. Agardh, 1994
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Rocky, Coastal

Biogeography


• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Gujarat, Saurashtra (Lat: 21.97) (Long: 70.5) INDIA
• Gujarat INDIA
• Maharashtra INDIA
• Andaman and Nicobar Islands INDIA
• Andaman and Nicobar Islands, Andaman Islands (Lat: 12.5) (Long: 92.75) INDIA
• Gujarat, Okha Port INDIA
• Gujarat, Dwarka INDIA
• Gujarat, Porbandar INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA
• INDIA
• Java INDONESIA
• KUWAIT
• MADAGASCAR
• MAURITIUS
• MOZAMBIQUE
• PAKISTAN
• SEYCHELLES
• SRI LANKA
• TANZANIA
• YEMEN
• Gujarat, Kotda INDIA
• Gujarat, Shivrajpur INDIA
• Gujarat, Okha INDIA

Literature Source(s)
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Jassund, E (1977) Marine algae in Tanzania VIII Botanica Marina Walter de Gruyter, Berlin 20 509-520 Available at - NIO, Goa
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Subba Rao, NV and Sastry, DRK (2005) Fauna of Marine National Park, Gulf of Kuchchh (Gujarat) ZSI 79 pp Available at - NCL, Pune
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • Bolton, JJ; Oyieke, HA and Gwada, P (2007) The seaweeds of Kenya: Checklist, history of seaweed study, coastal environment, and analysis of seaweed diversity and biogeography South African Journal of Botany 73 76-88 Available at - NCL, Pune
  • Schils, T and Eric, C (2003) Spatial variation in subtidal plant communities around the Socotra Archipelago and their biogeographic affinities within the Indian Ocean Marine Ecology Progress Series 251 103-114 Available at - NCL, Pune
  • Eric, C; Frederik, L;, Heroen, V; de Olivier, C; Tom, S; de Thomas, V and Marie, D (2004) The marine green and brown algae of Rodrigues (Mauritius, Indian Ocean) Journal of Natural History 38 2959-3020
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • Krishnamurthy, V (2006) Key to the taxonomic identification of green and brown marine algae of India Recent advances on applied aspects of Indian marine algae with reference to global scenario. Seaweed taxonomic identification, aquaculture, resource, environment, fouling and disease Central Salt and Marine Chemicals Research Institute, Bhavnagar 1 1-146 Available at - NIO, Goa
  • Littler, DS; Littler, MM and Brooks, BL (1995) Marine algae and seagrasses from the Tobacco Range Fracture Zone, Belize, C.A Atoll Research Bulletin Smithsonian Institution Press 429 1-43 Available at - http://si-pddr.si.edu/dspace/handle/10088/2580
  • Jha B, Reddy C.R.K, Thakur M C and Rao M (2009) Seaweeds of India The Diversity and Distribution of seaweeds of Gujarat Coast Springer 211pp Available at - NIO

Page last updated on:2012-11-30

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