Chrysymenia ventricosa (J.V. Lamouroux) J. Agardh 1842 , p. 106

Schmidt, W. E., Gurgel, C. F. D. & Fredericq, S., 2016, Taxonomic Transfer of the Red Algal Genus Gloiosaccion to Chrysymenia (Rhodymeniaceae, Rhodymeniales), Including the Description of a New Species, Chrysymenia pseudoventricosa, for the Gulf of Mexico, Phytotaxa 243 (1), pp. 54-70 : 60-62

publication ID

https://doi.org/ 10.11646/phytotaxa.243.1.2

persistent identifier

https://treatment.plazi.org/id/03A487B9-FFBD-2305-FF50-F921D4F8FD76

treatment provided by

Felipe

scientific name

Chrysymenia ventricosa (J.V. Lamouroux) J. Agardh 1842 , p. 106
status

 

Chrysymenia ventricosa (J.V. Lamouroux) J. Agardh 1842, p. 106

Figures 3–8 View FIGURES 3–8

TYPE LOCALITY: “In Mari Gaditano.Ad oras maris Mediterranei Galliae” (from sea around the Straits of Gibraltar, on shores of Spanish Mediterranean Sea)

TYPE MATERIAL: Mediterranean, no indication about collector, ( C 19/f 33), grey label ( Fig. 3 View FIGURES 3–8 ) is by the hand of Lamouroux; extra label written by J. F. Chauvin, his successor at Caen (Dr. Chantal Ballard, pers. comm.) mentions Fistularia ventricosa , a cornetfish ( Fistularia Linnaeus 1758 ). The independence of botanical and zoological nomenclature of F. fistularia is moot since the algal name was not formally described.

BASIONYM: Dumontia ventricosa J.V. Lamouroux 1813, p. 45 , pl. 4, fig. 6

SYNONYMS: Halymenia ventricosa (J.V. Lamouroux) C. Agardh 1822, p. 212

Chrysymenia digitata Zanardini 1863, p. 287

Chrysymenia ventricosa var. digitata (Zanardini) Hauck 1883, p. 159

MATERIAL EXAMINED: carposporophytic specimen, Cap Oullestreil, Côte des Albères, Pyrénées, Mediterranean France, 17.vii.84, coll. M.D. Guiry, Fig. 4 View FIGURES 3–8 . See Table 1.

GEOGRAPHIC DISTRIBUTION: Mediterranean. The occurrence of C. ventricosa outside this area is doubtful (Florida, Greater and Lesser Antilles, Southern Caribbean, Bermuda, Canary Islands, Venezuela, French Polynesia; see records in Taylor 1960, Littler and Littler 2000, Payri et al. 2000).

HABIT, VEGETATIVE AND REPRODUCTIVE STRUCTURE: The type specimen of C. ventricosa ( Fig. 3 View FIGURES 3–8 ) was not available for study, and only a dried herbarium specimen that lacked the basal part of a stipe and holdfast ( Fig. 4 View FIGURES 3–8 ) was analyzed. The thallus, about 17 cm tall, erect, terete to moderately compressed ( Figs. 3–4 View FIGURES 3–8 ), consists of a leading axis bearing alternate to opposite lateral side branches appearing sparsely but broadly pinnulate, giving the thallus a digitate appearance ( Figs 3, 4 View FIGURES 3–8 ). None of the side branches are constricted at their base ( Figs. 3, 4 View FIGURES 3–8 ). The thallus surface is completely corticated ( Fig. 5 View FIGURES 3–8 ), composed of two-to-three cortical cell layers of small roundish cells ( Fig. 7 View FIGURES 3–8 ) subtended by a layer of elongate, narrow subcortical cells and two medullary layers of large hyaline cells ( Fig. 7 View FIGURES 3–8 ). The elongate, periclinal subcortical cells are readily visible from a surface view ( Fig. 5 View FIGURES 3–8 ). Pyriform gland cells ( Fig. 6 View FIGURES 3–8 ) are pinched off singly and thallus inward from the peripheral cytoplasm of any unmodified subcortical or medullary cell ( Fig. 6 View FIGURES 3–8 ), with several gland cells of different sizes typically cut off from a single vegetative cell ( Fig. 6 View FIGURES 3–8 ). Ostiolate, hemispherical carposporophytes are scattered over the thallus surface ( Fig. 4 View FIGURES 3–8 ) and protrude from the surface. Mature carposporophytes reach about 0.8 cm in diameter, and lack an enveloping network of filaments around the globular mass of carposporangia ( Fig. 8 View FIGURES 3–8 ). Male and tetrasporangial thalli were not seen.

REPRESENTATIVE SEQUENCES: KT154745 (rbc L), KT154732 (LSU), KT154707 (UPA).

C

University of Copenhagen

J

University of the Witwatersrand

F

Field Museum of Natural History, Botany Department

M

Botanische Staatssammlung München

Kingdom

Plantae

Phylum

Rhodophyta

Class

Florideophyceae

Order

Rhodymeniales

Family

Rhodymeniaceae

Genus

Chrysymenia

Loc

Chrysymenia ventricosa (J.V. Lamouroux) J. Agardh 1842 , p. 106

Schmidt, W. E., Gurgel, C. F. D. & Fredericq, S. 2016
2016
Loc

Chrysymenia ventricosa var. digitata (Zanardini)

Hauck, F. 1883: 159
1883
Loc

Chrysymenia digitata

Zanardini, G. 1863: 287
1863
Loc

Chrysymenia ventricosa (J.V. Lamouroux) J. Agardh 1842 , p. 106

Agardh, J. G. 1842: 106
1842
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF