Acrosorium ciliolatum (Harvey) Kylin 1924

Publication Details
Acrosorium ciliolatum (Harvey) Kylin 1924: 78

Published in: Kylin, H. (1924). Studien über die Delesseriaceen. Lunds Universitets Årsskrift, Ny Följd, Andra Afdelningen. N.F. Avd. 2 20(6): 1-111, 80 figs.

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Type Species
The type species (holotype) of the genus Acrosorium is Acrosorium aglaophylloides Zanardini ex Kützing.

Status of Name
This name is of an entity that is currently accepted taxonomically.

Basionym
Nitophyllum ciliolatum Harvey

Type Information
Type locality: King George Sound, Western Australia; (Womersley 2003: 133) Lectotype: TCD, Herb. Harvey; Alg. Aust. Exsic. 297B (Womersley 2003: 133)

General Environment
This is a marine species.

Description
Flattened, membranous, deep-red fronds, 30-150(-200) mm long. Frond deeply divided into linear-lanceolate, irregularly branched segments, often terminating in hooks. Margins toothed, often ± proliferous. Frond traversed by network of microscopic veins, macroscopic veins absent. Womersley (2003: 131-133, figs 61, 62A, B) gives descriptions of the thallus and reproduction.

Habitat
On rocks and epiphytic, lower intertidal and subtidal, widely distributed, occasional. Womersley (2003: 133) gives the following data: Occurs mainly in sheltered situations in calm waters, or deeper water on rough-water coasts.

Created: 17 September 2003 by G.M. Guiry.

Last updated: 06 December 2023

Verification of Data
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Taxonomic note
Womersley (2003: 133) notes: "The type of Acrosorium ciliolatum has numerous short, slender, "cilia" on the margins and surface.... As Kylin (1929: 13) considered, A. ciliolatum is not specifically distinct from A. venulosum, and is the earliest name for this Acrosorium. Most descriptions under Acrosorium vunulosum or A. uncinatum state "gametophyes unknown". However, a few southern Australian collections (e.g. AD, A31152) with typical uncinate branches and agreeing well with this species, do bear cystocarps, and the description" (given by Womersley 2003) "of female stages is based on these."

"It should be noted that, as pointed out by Gómez Garreta et al. (2001: 443 note 59) and later also by Furnari et al. (2003: note at p. 23), many Mediterranean records of Acrosorium reptans [= Cryptopleura ramosa (Hudson) L. Newton, see] and its infraspecific combinations [e.g.: Ac. uncinatum (Turner) Kylin var. reptans (P. et H. Crouan) Boudouresque, Perret-Boudouresque et Knoepffler-Péguy] should be considered as misapplied names for Ac. venulosum [= Ac. ciliolatum]. We also agree with Wynne (2013: 164) in considering Mediterranean records of both Nitophyllum uncinatum sensu Agardh and Acrosorium uncinatum sensu Kylin to be referred to as Ac. venulosum [= A. ciliolatum]. In fact, when J. Agardh (1852: 654) raised to the rank of species Fucus laceratus var. uncinatus Turner, he described thalli collected at Leghorn (Italy). Such a description doesn%u2019t correspond to characters of the basionym that, as pointed out by Wynne (1989), should be referred to as Cryptopleura ramosa (Hudson) L. Newton." (Cromaci & al. 2023: 437). - (26 January 2009) - M.D. Guiry

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 28 March 2025

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