IMIS | Lifewatch regional portal

You are here


[ report an error in this record ]basket (0): add | show Print this page

Aglaothamnion rigidulum nov spec. (Rhodophyta, Ceramiaceae) from South Africa
De Clerck, O.; Bolton, J.J.; Anderson, R.J.; Coppejans, E. (2004). Aglaothamnion rigidulum nov spec. (Rhodophyta, Ceramiaceae) from South Africa. Bot. Mar. 47(5): 431-436.
In: Botanica Marina. Walter de Gruyter & Co: Berlin; New York. ISSN 0006-8055; e-ISSN 1437-4323, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 231161 [ OMA ]

    Aglaothamnion Feldmann-Mazoyer, 1941 [WoRMS]; Callithamnion Lyngbye, 1819 [WoRMS]; Ceramiaceae Dumortier, 1822 [WoRMS]; Rhodophyta [WoRMS]
Author keywords
    Aglaothamnion; Callithamnion; Ceramiaceae; Rhodophyta; South Africa

Authors  Top 
  • De Clerck, O., more
  • Bolton, J.J.
  • Anderson, R.J.
  • Coppejans, E., more

    Aglaothamnion rigidulum is described as a new species from southern Kwazulu-Natal, South Africa. The main distinguishing characters are the robust nature of the filaments, the dense cortication in the lower part of the thallus, the alternating distichous branching pattern and the unbranched determinate laterals which curve upwards and overtop the apical cell. In addition to a detailed description of the vegetative anatomy and reproductive structures, attention is drawn to unusual changes of the branching pattern associated with the formation of procarps near the apices of indeterminate axes, and the subsequent formation of an involucrum protecting the developing gonimoblast. The plane of branching changes by 90degrees at the fertile axial cell, and the determinate laterals 2-3 cells below and above the fertile axial cell are strongly incurved and branch once or twice subdichotomously, thereby forming a protective involucrum enclosing the developing gonimoblast from all sides. This aspect of the morphology has not been well documented in either Aglaothamnion or Callithamnion, but may well occur in several other species belonging to the Callithamnieae.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors