Journal
CRYPTOGAMIE ALGOLOGIE
Volume 32, Issue 1, Pages 37-62Publisher
ADAC-CRYPTOGAMIE
DOI: 10.7872/crya.v32.iss1.2011.037
Keywords
Atlantic Ocean; Caloglossa; Ceramiales; Delesseriaceae; Gulf of Mexico; LSU rDNA; rbcL; Rhodophyta; systematics
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Funding
- The National Science Foundation [DEB PEET 0328491, DEB 091905, DEB 0936216, OISE 0819205]
- Direct For Biological Sciences
- Division Of Environmental Biology [743024] Funding Source: National Science Foundation
- Division Of Environmental Biology
- Direct For Biological Sciences [1045690, 937978] Funding Source: National Science Foundation
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The red algal genus Caloglossa (Delesseriaceae, Ceramiales) in the New World is represented by Caloglossa leprieurii sensu Into. The earliest name for any species in the genus, other than the basionym Delesseria leprieurii, is Apiarium apiculum. On the basis of comparative morphological data, and rbcL and LSU rDN A sequence analyses, the C. leprieurii complex in the New World is found to include four species: C. leprieurii, C. apomeiotica, C. apicula comb. nov., and C. ruetzleri sp. nov. The four species can be distinguished by subtle vegetative characters, including rhizoid morphology, the degree of constriction at the thallus nodes, presence or absence of adventitious branches, number of cell rows cut off from the first axial cell of the main axis, and the position of the cystocarp on the blades. A dichotomous key highlights the diagnostic vegetative characters to separate species of the C. leprieurii complex that occur in the Americas. Caloglossa leprieurii is a tropical species from the Caribbean Sea, the Indian Ocean and the tropical eastern Pacific Ocean. Caloglossa ruetzleri is apparently restricted to the Caribbean Sea and the Gulf of Mexico, C. apomeiotica to the eastern Pacific and southern Atlantic Oceans, and C. apicula the Western Atlantic Ocean, Gulf of Mexico and Indian Ocean.
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