We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
AUGOPHYLLUM, A NEW GENUS OF THE DELESSERIACEAE (RHODOPHYTA) BASED ONrbcL SEQUENCE ANALYSIS AND CYSTOCARP DEVELOPMENT.
- Authors
Lin, Showe-Mei; Fredericq, Suzanne; Hommersand, Max H.
- Abstract
A new genus,AugophyllumLin, Fredericq et Hommersand gen. nov. related toNitophyllum, tribe Nitophylleae, subfam. Nitophylloideae of the Delesseriaceae, is established to contain the type speciesAugophyllum wysoriiLin, Fredericq et Hommersand sp. nov. from Caribbean Panama;Augophyllum kentingiiLin, Fredericq et Hommersand sp. nov. from Taiwan;Augophyllum marginifructum(R. E. Norris et Wynne) Lin, Fredericq et Hommersand comb. nov. (Myriogramme marginifructaR. E. Norris et Wynne 1987) from South Africa, Tanzania, and the Sultanate of Oman; andAugophyllum delicatum(Millar) Lin, Fredericq et Hommersand comb. nov. (Nitophyllum delicatum) from southeastern Australia. LikeNitophyllum,Augophyllumis characterized by a diffuse meristematic region, the absence of macro- and microscopic veins, procarps consisting of a supporting cell bearing a slightly curved four-celled carpogonial branch flanked laterally by a cover cell and a sterile cell, a branched multicellular sterile group after fertilization, absence of cell fusions between gonimoblast cells, and tetrasporangia transformed from multinucleate surface cells.Augophyllumdiffers fromNitophyllumby the blades becoming polystromatic inside the margins, often with a stipitate cylindrical base, the possession of aggregated discoid plastids neither linked by fine strands nor forming bead-like branched chains, spermatangia and procarps initiated at the margins of blades, not diffuse, and a cystocarp composed of densely branched gonimoblast filaments borne on a conspicuous persistent auxiliary cell with an enlarged nucleus. Analyses of therbcL gene support the separation ofAugophyllumfromNitophyllum. An investigation of species attributed toNitophyllumaround the world is expected to reveal other taxa referable toAugophyllum.
- Subjects
DELESSERIACEAE; RED algae; NITOPHYLLUM; TAXONOMY; CYSTOCARP; AMINO acid sequence
- Publication
Journal of Phycology, 2004, Vol 40, Issue 5, p962
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.1529-8817.2004.04055.x