Marine algae of the northern Gulf of California : Chlorophyta and Phaeophyceae

Norris, James N.

doi:10.5479/si.0081024x.94.276

Cited by 59 publications

(71 citation statements)

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“…The shapes of the apices of the gametangial rays on the specimens analyzed were in accordance with those described by Yoneshigue-Braga (1980), Berger & Kaever (1992), Berger et al (2003) and Norris (2010).…”

Section: Resultssupporting

confidence: 61%

“…According to Norris (2010), the original spelling of the species, "caliculus" (J.V.Lamour. in Quoy & Gaimard 1824), does not need to be changed to "calyculus", because it agrees with the use of the Latin word Calix, a small cup.…”

Section: Resultsmentioning

confidence: 99%

“…cons., and Parvocaulis S. Berger, Fettweiss, Gleissberg, L.B.Liddle, U.Richt., H.Sawitsky & Zuccarello. Those genera have traditionally been distinguished on the basis of the characteristics of their peduncles and gametangial ray discs (Valet 1969;Bailey et al 1976;Berger & Kaever 1992;Berger et al 2003;Kraft 2007;Norris 2010). Berger et al (2003) mapped the morphological characteristics and ontogenies of the Dasycladales through the phylogeny of 18S rDNA and recognized three clades for the Polyphysaceae: clade 1, with the genus Chalmasia, is characterized by the formation of a protuberance on the apex of the cell before the formation of the disc, and pointed gametangial rays; clade 2, including the representatives of Parvocaulis, is characterized by the presence of a corrugated peduncle on adult stalks; and clade 3, containing the taxa Acetabularia (including the genera Acicularia d' Archiac and Polyphysa peniculus [R.Brown ex Turner] C.Agardh [= A. peniculus {R.Brown ex Turner} Solms]), which is characterized by the absence of a velum (a thin, delicate pectic membrane) surrounding the ray discs during the initial stages of development, and by a predisposition to begin forming the disc rays by forming hairs on the upper corona.…”

Section: Introductionmentioning

confidence: 99%

“…These rays may have additional protuberances on the abaxial face (lower corona), and they lack hairs when the protuberances are present. Reproduction occurs by gametes that develop in cysts within the gametangial rays (Berger & Kaever 1992;Norris 2010).…”

Section: Introductionmentioning

confidence: 99%

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Polyphysaceae (Dasycladales, Chlorophyta) in Todos os Santos Bay, Bahia, Brazil

et al. 2014

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In this paper, we summarize the diversity of Polyphysaceae species in Todos os Santos Bay, in the state of Bahia, Brazil. The last has a distribution extending to the southern Atlantic Ocean. Acetabularia myriospora was transferred to Parvocaulis (as P. myriosporus) on the basis of its short corrugated peduncles and lack of a lower corona in the gametangial ray discs, which are diagnostic characters of this genus. In Todos os Santos Bay, Acetabularia species are more widely distributed than are Parvocaulis species, which are currently restricted to Itaparica Island. The most common taxa were A. caliculus and A. schenckii, which were collected from the majority of the study sites. This paper provides detailed descriptions of the morphology, reproductive aspects and geographic distributions of the algae, as well as discussing the taxa studied.

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Section: Resultssupporting

confidence: 61%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polyphysaceae (Dasycladales, Chlorophyta) in Todos os Santos Bay, Bahia, Brazil

et al. 2014

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“…Ulva ralfsii (Harvey) Le Jolis showed very slender filamentous thalli (Kraft 2007). Ulva flexuosa Wulfen, U. clathlata (Roth) C. Agardh, U. clathratioides, U. proliferoides L. Kraft, Kraft and R. Waller, and U. radiata (J. Aagardh), Hayden, Blomster, Maggs, P. C. Silva, Stanhope and Waaland showed proliferations in the basal region and middle or upper region of thalli (Bliding 1963, Koeman and van den Hoek 1984, Shimada et al 2007, Kraft et al 2010, Norris 2010. Ulva intestinalis L. contained only one pyrenoid per chloroplast in each cell (very rarely two) (Bliding 1963, Koeman and van den Hoek 1982, Blomster et al 1998, Maggs et al 2007).…”

Section: Discussionmentioning

confidence: 99%

Ulva partita sp. nov., a Novel Enteromorpha-Like Ulva Species from Japanese Coastal Areas

et al. 2015

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SummaryIn this report, Ulva partita Ichihara, sp. nov. (Ulvales, Ulvophyceae) was described from Japanese seashores. This species was characterized by (i) frequent branches in the basal region, but not in the middle to upper region, (ii) being up to 20 cm in height and 5 mm in diameter, and (iii) containing chloroplasts covering the outer cell wall in the middle and upper regions of thalli, but with many chloroplasts leaning to one side of the cells in the basal region. Ulva partita is distinguished from morphologically similar species based on the branching pattern, early development pattern, and gamete size. Molecular phylogenetic analyses of nuclear-encoded ITS2 sequence and chloroplastencoded rbcL sequences also strongly supported the independence of this species.

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