Champia puertoricensis sp. nov. (Rhodophyta: Champiaceae) from Puerto Rico, Caribbean Sea
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Chad Lozada-Troche
Abstract
Morphological examination of sympatrically growing specimens referable to Champia parvula collected as seagrass epiphytes has resulted in the recognition of a new Champia species. The new species bears resemblance to type specimens of C. parvula, differing mainly in branching pattern (opposite vs. typically alternate) and branch origin (between the septa vs. nodal region), number of axes arising from holdfasts (4–7 vs. 1 or more), and monoecious vs. dioecious gametophytes. On the basis of analyses of small ribosomal subunit and rubisco large subunit (rbcL) gene sequences, the new species was distinct from its sympatric partner. The new species clades most closely with C. vieillardii, C. compressa, and what is tentatively referred to as C. parvula from Puerto Rico. Furthermore, rbcL sequence comparison between C. vieillardii and C. compressa supports their recognition as distinct species.
©2010 by Walter de Gruyter Berlin New York
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- Coexistence of Ulva rigida and Ulva laetevirens (Ulvales, Chlorophyta) in Venice Lagoon and other Italian transitional and marine environments; Bot. Mar. 53 (2010): 9–18
