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Gracilaria perplexa K.Byrne & Zuccarello 2002

Publication details
Gracilaria perplexa K.Byrne & Zuccarello in K.Byrne & al. 2002: 302, 303, figs 4 a-g

Published in: Byrne, K., Zuccarello, G.C., West, J., Liao, M.-L. & Kraft, G.T. (2002). Gracilaria species (Gracilariaceae, Rhodophyta) from southeastern Australia, including a new species, Gracilaria perplexa sp. nov.: Morphology, molecular relationships and agar content. Phycological Research 50(4): 295-312.
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Publication date: December 2002

Type species
The type species (lectotype) of the genus Gracilaria is Gracilaria compressa (C.Agardh) Greville.

Status of name
This name is currently regarded as a synonym of Hydropuntia perplexa (K.Byrne & Zuccarello) Conklin, O'Doherty, & A.R.Sherwood

Type information
Type locality: Bare Island, La Perouse, Botany Bay, New South Wales, Australia (Byrne et al. 2002: 302). Holotype: K. Byrne & J. Bartlett; 22 May 1999; MELU 042862 (Byrne et al. 2002: 302). Notes: Isotype: MELU A042863 and A042864, N. Paul, Dec. 1998.

Synonym(s)
No synonyms are currently included in AlgaeBase.

Distributional notes
Known only from type locality and Kurnell, New South Wales

General environment
This is a marine species.

Description
Terete shoots to 15 cm, branching variable, subdichotomous to four orders, acute tips, sometimes arcuate, primary axes 1.5-1.7 mm diam., cortex 30-40 µm wide, two to four cell layers, with scattered hyaline cells (hair cell bases). Transition to medulla abrupt. Medullary cells, poilygonal, to 250-320 µm diam. Polysiphonia-type life history, gametophytes dioecious, cystocarps globose, rostrate, slightly constricted at base, to 1.3 mm diameter, solitary or sometimes aggregated; traversing filaments directed toward cystocarp cavity floor, carposporangia subspherical to 25 µm diameter, pericarp, 220-270 µm thick with 7-10 cell layers; spermatangia borne in compound conceptacles 50-85 µm across (Polycavernosa-type) in subcortex/outer medulla, tetrasporangia cruciate-decussate, 17-26 x 26-29 µm scattered in outer cortex.

Detailed distribution with sources (Click to Load)

Source of current name
Gurgel, C.F.D., Norris, J.N., Schmidt, W.E., Le, H.N. & Fredericq, S. (2018). Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov. Phytotaxa 374(1): 1-23.

Key references
Conklin, K.Y., O'Doherty, D.C. & Sherwood, A.R. (2014). Hydropuntia perplexa, n. comb. (Gracilariaceae, Rhodophyta), first record of the genus in Hawaii. Pacific Science 68(3): 421-434.

Created: 29 November 2004 by Sandy Lawson

Verified by: 12 March 2019 by M.D. Guiry

Accesses: This record has been accessed by users 1159 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Byrne, K., Zuccarello, G.C., West, J., Liao, M.-L. & Kraft, G.T. (2002). Gracilaria species (Gracilariaceae, Rhodophyta) from southeastern Australia, including a new species, Gracilaria perplexa sp. nov.: Morphology, molecular relationships and agar content. Phycological Research 50(4): 295-312.
Yokoya, N.S., West, J.A. & Luchi, A.E. (2004). Effects of plant growth regulators on callus formation, growth and regeneration in axenic tissue cultures of Gracilaria tenuistipitata and Gracilaria perplexa (Gracilariales, Rhodophyta). Phycological Research 52(3): 244-254.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=65929

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 September 2021.

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