A Re-Assessment of Reproductive Anatomy and Postfertilization Development in the Systematics ofGrateloupia(Halymeniales, Rhodophyta)

• DOI: 10.7872/crya.v34.iss1.2013.3
• Publication Date: 2013-03-14T09:50:09Z
• Authors: Gaetano M. Gargiulo; Marina Morabito; Antonio Manghisi
• Keywords: Sensu

The red algal family Halymeniaceae has been recently the subject of taxonomic revisions based strictly on molecular data. As a result, number genera ascribed to it decreasing and many generic definitions changed profoundly owing inconsistencies in diacritical vegetative particularly reproductive characters standard literature. Reproductive uniformity within this claimed since late 19th century is generally supported by recent authors. In study we report consistent significant differences architecture carpogonial auxiliary cell ampullae, as well early postfertilization events, among Mediterranean species currently assigned genus Grateloupia C. Agardh provide new interpretations these features. We recognize several distinct types ampullae events that distinguish groups species, proving be strongly rbcL phylogenies. result conclude presently circumscribed should segregated into multiple genera. addition sensu stricto, resurrect Dermocorynus P.L. Crouan et H.M. Crouan, Pachymeniopsis Y. Yamada ex S. Kawabata, Phyllymenia J. Prionitis Agardh, all which have subsumed previous New our anatomical results for G. doryphora (Montagne) M. Howe, subpectinata Holmes proteus Kützing will described subsequent papers.