Cryptonemia atrocostalis C.W.Schneider, C.E.Lane & G.W.Saunders 2018
Publication Details
Cryptonemia atrocostalis C.W.Schneider, C.E.Lane & G.W.Saunders 2018: 359, 361, figs 11-15
Published in: Schneider, C.W., Lane, C.E. & Saunders, G.W (2018). A revision of the genus Cryptonemia (Halymeniaceae, Rhodophyta) in Bermuda, western Atlantic Ocean, including five new species and C. bemudensis (Collins & M.Howe) comb. nov.. European Journal of Phycology 53(3): 350-368.
Publication date: 2018
Type Species
The type species (lectotype) of the genus Cryptonemia is Cryptonemia lactuca J.Agardh.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Holotype locality: off Great Head Park, St. David's I., Bermuda, western Atlantic Ocean (32°22'06.9"N, 64°38'30.1"W); (Schneider & al. 2018: 361) Holotype: Thea R. Popolizio/Craig W. Schneider 12-131-3 (BDA1543); 2 October 2012; depth 18 m on rock; MICH; (Schneider & al. 2018: 361, fig. 11) Notes: GenBank MF685031 (LSU), MF782469 (rbcL).
General Environment
This is a marine species.
Description
Plants with new growth membranous and pinkish-red, older portions firm, leathery, and dark rosy-red, to 25 cm tall, attached by small to large discoid holdfasts, giving rise to one or more simple to branched erect axes; axes broadly ligulate above brief to long stipes which extend into the attenuate blade bases as midribs reaching 1/2 the total distance of the expanded blades or beyond, often several blades issued from extended older, terete stipes and holdfasts; blades pseudodichotomously to alternately branched 0.6-2.5 cm wide, with few to many marginal obovate to subcircular bladelets, these at times concentrated on the truncate to rounded apices; margins undulate and entire to erose; blades 75-300 µm thick in vegetative portions, swollen at the margins, medulla comprising much of the blade width, composed of densely arranged, narrow filaments 2-5 µm diam., surrounded by swollen ganglial cells with bodies 7-23 µm diam., giving rise to a few-layered cortex, progressively smaller from medulla outwards, surface cells 3-5 µm diam., irregularly angular to rounded in surface view; midribs more greatly thickened on the ventral surface by anticlinal tiers of cortical cells; tetrasporangia globose and obovoid to ellipsoid, cruciately divided, 7-10 µm diam., 9-15 µm long, loosely to densely formed in marginal bladelets near the apices, displacing cortical cells at maturity; dioecious, spermatangia in patches on marginal bladelets, short ellipsoid, 1.5-3.0 µm diam.; carposporophytes immersed in marginal bladelets or blade tips, globose, 100-150 µm diam., with basal placentas, involucral filaments, and small cortical ostioles; carposporangia subquadrate to irregularly angled, 7.5-10.0 µm diam.
Created: 13 September 2018 by G.M. Guiry.
Last updated: 04 December 2018
Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=169787
Citing AlgaeBase
Cite this record as:
Craig Schneider in Guiry, M.D. & Guiry, G.M. 04 December 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 16 April 2024
