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On the red algal genera Grallatoria Howe and Callithamniella Feldmann-Mazoyer (Ceramiales)
Abstract
Grallatoria Howe (1920) (Ceramiaceae, Rhodophyta), with a single species, G. reptans, was described from the Bahamas and has not been reported upon again. Recent collections of fertile material from St Croix, U.S. Virgin Islands, show that the genus is identical with and its name antedates Callithamniella Feldmann-Mazoyer (1938). The two described species of Callithamniella, C. tingitana (Schousboe ex Bornet) Feldmann-Mazoyer and C. flexilis Baardseth (1941) are transferred to Grallatoria. Grallatoria is distinguished by a dorsiventral construction where nearly every cell of a decumbent axis bears conspicuous coloured haptera on the ventral surface, and opposite these on the dorsal surface one branch of determinate and one of indeterminate growth. Tetrasporangia, either cruciately or tetrahedrally divided, were known in the described species of Callithamniella and in G. reptans, and spermatangia were known only in C. flexilis. Cystocarps are described here for the first time. The reproductive and vegetative characters suggest relationship to the tribe Sphondylothamnieae of the Ceramiaceae (Ceramiales).
... The Wrangeliaceae tribe Wrangelieae F. Schmitz (1889) is currently recognized to include three genera ( Guiry and Guiry 2013 ): Wrangelia C. Agardh (1828) , Grallatoria M. Howe (1920) , and Plumariella Okamura (1930) . Although Abbott (1976) had assigned Grallatoria to the Wrangeliaceae tribe Sphondylothamnieae Feldmann-Mazoyer (1940) , subsequent research provided support for its placement in Wrangelieae ( Wynne and Ballantine 1985 ). [Note: Feldmann-Mazoyer op cit . usually cited " 1941[ ' 1940 " (e.g., Dixon 1962 ), but actual printing date 6 Jun 1940, and thesis defence date 17 Mar 1941 (see Dorr and Nicolson 2008 ).] ...
On the basis of comparative morphological and molecular analyses, a new red algal species in the genus Wrangelia (Wrangeliaceae, Ceramiales) is described from the tropical western Atlantic. Distinctive characteristics of the proposed new species, W. gordoniae , include: overall habit; built up pseudoparenchymatous cortex that is com-posed of 2, and in localized sites up to 3, layers of cortical cells, with the outermost layer incomplete, composed of smaller, irregular-shaped cells; and spermatangial heads with 5 – 6 (– 7) involucres, each consisting of a single elon-gate cell. Analyses of SSU sequences of specimens of Wrangelia from Puerto Rico further support the presence of four genetically distinct entities. In addition to numer-ous recent collections, a number of herbarium specimens from different Caribbean locales previously identified as " W. penicillata " are now recognized to be W. gordoniae . The new species is compared morphologically with other Wrangelia species that also have 5 whorl branchlets per segment and a cortex that partially or wholly covers their axes. A key to the tropical western Atlantic species of Wrangelia is provided.
Seven taxa of benthic marine rodophytes are reported for the first time from the Brazil littoral: Acrochaetium corymbiferum (Thur. in Le Jolis) Batters, A. liagorae Børgesen, Aglaothamnion herveyi (M.Howe) Aponte, D.L. Ballant. & J.N. Norris, Crouanophycus latiaxis (L.A. Abbott) Athanas., Grallatoria reptans M.Howe and Gelidiella sanctarum Feldmann & Hamel. Gelidiopsis repens (Kütz.) Weber Bosse this is the new reference to the Atlantic Ocean. The material collected on mediolittoral and infralittoral was deposited in the Herbarium Alexandre Leal Costa (ALCB) at the Universidade Federal da Bahia. Reference to the original description, basionym, morphological description, geographical distribution and taxonomical comments are presented for each taxon studied.
Sete táxons de rodofíceas marinhas bentônicas são referidos pela primeira vez para o litoral brasileiro: Acrochaetium corymbiferum (Thur. in Le Jolis) Batters, A. liagorae Børgesen, Aglaothamnion herveyi (M. Howe) Aponte, D.L. Ballant. & J.N. Norris, Crouanophycus latiaxis (L.A. Abbott) Athanas., Grallatoria reptans M. Howe e Gelidiella sanctarum Feldmann & Hamel. Gelidiopsis repens (Kütz.) Weber Bosse é pela primeira vez referido para o Oceano Atlântico. As coletas foram realizadas no medio e infralitoral. O material está depositado no Herbário Alexandre Leal Costa. Referência da descrição original, basiônimo, descrição morfológica, distribuição geográfica e comentários taxonômicos são apresentados para cada táxon estudado.
Eight species of Ceramiaceae are reported from the Canary Islands for the first time: Antithamnion densum (Suhr) Howe, Antithamnion diminuatum Wollaston, Callithamniella tingitana (Schousboe ex Bornet) Feldmann-Mazoyer. Callithamnion cordatum Borgesen, Ceramium atrorubescens Kylin, Ceramium cingulatum Weber-van Bosse, Ceramium tenerrimum (Martens) Okamura and Grallatoria reptans Howe. For each species, morphological and phenological data as well as habitat are presented. Comments on their geographical distribution are also given.
La découverte du rameau carpogonial chez Dohrniélla neapolitana Funk (1922) confirme la position systématique des Dohrniellées au voisinage des Crouaniées. Ces tribus se distinguent cependant par leur appareil végétatif.
Le Dohrniella neapolitana possède des pleuridies végétatives de deux sortes: des pleuridies majeures et des pleuridies mineures. Les pleuridies majeures sont formées d'un filament primaire bien développé et de filaments pleuridiens secondaires généralement opposés, ceux-ci constitués par une cellule dite papilliforme et un poil hyalin. Les pleuridies mineures, au nombre d'une ou deux sur chaque cellule axiale, forment un verticille avec soit une pleuridie majeure, soit un axe cladomien secondaire. Elles sont absentes à l'état végétatif; quand elles existent, ou bien elles sont réduites à une coxale pleuridienne qui devient la cellule-support des tétrasporocystes et des rameaux à spermatocystes, ou bien elles se différencient en filaments involucraux autour du procarpe.
The southern Australian species of the tribe Crouanieae Schmitz (Ceramiaceae, Rhodophyta) have been studied with particular reference to their taxonomy, relationships, and phytogeny; in all cases the type specimens have been examined.Three tribes, Crouanieae, Antithamnieae, and Heterothamnieae, can be recognized, including 16 genera, of which Euptilocladia, Macrothamnion, Tetrathamnion, Amoenothamnion, and Trithamnion are newly described, and 48species (26 newly described). Recognition of the subfamilies Crouanioideae and Ceramioideae, as defined by Hommersand (1963), is not supported by these studies.
Sphondylothamnion multifidum (Huds.) Naeg., while a typical member of the Ceramiaceae in its structure and reproduction, differs in post-fertilisation details from other known genera. The sterile cells associated with the procarp system, i.e. the apical cell, the sterile cell on the supporting cell, and the sterile pericentral cell, all divide actively after fertilisation to produce branched involucral systems which surround the gonimoblast.
Recherches sur les C~ramiacdes de la Mdditerran~e occidentale
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Millepora complanata (Coelenterata, Hydrozoa), commonly called "fire coral", or on Lobophora variegata (Lamour.) Wom. (Dictyotale.';, Phaeophyta), growing on the hydrocoral
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I.A. ABBOTT MATERIALS AND METHODS Grallatoria reptans was collected on a hydrocoral, Millepora complanata (Coelenterata, Hydrozoa), commonly called "fire coral", or on Lobophora variegata (Lamour.) Wom. (Dictyotale.';, Phaeophyta), growing on the hydrocoral. Collections were made by Nancy Ogden of the West Indies Laboratory of Fairleigh Dickinson University, at Patch Reef 2, Tague Bay, St Croix Island, U.S. Virgin Islands, on 2 February 1975 (Ogden 389, tetra-sporangial), and on 28 February 1975 (Ogden 395, tetrasporangial, male and female thalli).
Algae The Bahama Flora
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The female gametophyte of Dohrniella antillarum var. brasiliensis
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Un nouveau genre de C6ramiac6ae: Callithamniella. Bull. Stn Aquic
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Sur un nouveau genre de C6ramiac6e de la M6diterran6e
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FELDMANN-MAZOYER, G., 1938. Sur un nouveau genre de C6ramiac6e de la M6diterran6e.
C. r. hebd. Seanc. Acad. Sci., Paris, 207: 1119-1121.
Uber einige Ceramiaceen aus dem Golf von Neapel
- G Funk
FUNK, G., 1922. Uber einige Ceramiaceen aus dem Golf von Neapel. Beih. hot. ZbL, 39:
223-247.
Un nouveau genre de C6ramiac6ae: Callithamniella
- G Feldmann-Mazoyer
FELDMANN-MAZOYER, G., 1939. Un nouveau genre de C6ramiac6ae: Callithamniella. Bull.
Stn Aquic. Pdche Castiglione, 1936 (2): 91-101.
Die Gattungen der Rhodophyceen
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KYLIN, H., 1956. Die Gattungen der Rhodophyceen. Gleerups, Lund.