Ulva californica

Ulva californica Wille

Ulva californica Wille in Collins, Holden and Setchell, 1899:Exsiccate No. 611; Collins, 1909b:215; Setchell and Gardner, 1920b:264; Dawson, 1945c:23; Doty, 1947:11, pl. 2: figs. 6–10; Dawson, 1960a:31; Dawson, 1961b:374; Abbott and Hollenberg, 1976:78, fig. 35; Littler and Littler, 1981:149, 150; Pedroche and González-González, 1981:63; González-González, 1993:443; L. Aguilar-Rosas and Bertsch, 1983:114, 120; L. Aguilar-Rosas L. et al., 1985:125; Huerta-Múzquiz and Mendoza-González, 1985:42; Mendoza-González and Mateo-Cid, 1985:22; L. Aguilar-Rosas and Pacheco-Ruíz, 1986:77; Mendoza-González and Mateo-Cid, 1986:419; Tanner, 1986:517, figs. 1–19; Sánchez-Rodríguez et al., 1989:39; L. Aguilar-Rosas and Pacheco-Ruíz, 1989:81; R. Aguilar-Rosas and Machado-Galindo, 1990:188; Stewart, 1991:27; León-Tejera et al., 1993:199; Servière-Zaragoza et al., 1993:482; R. Aguilar-Rosas and M. Aguilar-Rosas, 1994:517, 529; González-González et al., 1996:139; Núñez-López et al., 1998:39; Servière-Zaragoza et al., 1998:169, 177; Hayden and Waaland, 2004:378, tbl. 3; Pedroche et al., 2005:22; Kawai et al., 2007:223–226, figs. 3, 4.

Ulva angusta Setchell et N. L. Gardner, 1920a:283, pls. 27, 31: fig.1; Setchell and Gardner, 1920b:264, pls. 22, 26: fig.1; Setchell and Gardner, 1930:137; Dawson, 1944:201; Smith, 1944:45, pl. 4: figs. 1–3; Dawson, 1961b:374; Abbott and Hollenberg, 1976:78, fig. 34; Silva, 1979:341; L. Aguilar-Rosas and Bertsch, 1983:114; Stewart and Stewart, 1984:140; L. Aguilar-Rosas et al., 1985:125; Mendoza-González and Mateo-Cid, 1986:419; González-González et al., 1996:139.

Enteromorpha angusta (Setchell et N. L. Gardner) Doty, 1947:20, pl. 1: figs. 1–6.

Ulva scagelii Chihara, 1968:87, figs. 3–8.

Ulva taeniata sensu Dawson, 1945b:59, 64 [non Ulva taeniata (Setchell) Setchell et N. L. Gardner, 1920a:286].

Algae variable in size and shape in the Gulf: blades usually small, up to 2 cm tall and 1.5 cm wide, cuneate or more or less triangular-shaped, with undulate margins; but blades can also be larger, lanceolate to oblanceolate (much taller than wide) up to 15 cm long and to 5 cm wide, usually with ruffled margins; attached below by a slender stipe and along base of the blade. Two cell layers, 30–40(–60) µm thick in transection; usually thicker near base. Cells in surface view polygonal with rounded corners, usually irregularly arranged, (5–)10–23 µm in diameter by (5–)10–15 µm long; chloroplast with 1–2(–4) pyrenoids. Cells in transection more or less quadrate to slightly elongate, 5–12 µm wide by 5–18 µm tall.

Quadriflagellate zoospores develop into gametophytes. Anisogamous gametes fuse to form a zygote; female gametes capable of developing parthenogenetically; male gametes can also develop without fertilization (Tanner, 1986).

HABITAT. On rocks or occasionally epiphytic; high to low intertidal.

DISTRIBUTION. Gulf of California: Puerto Peñasco to La Paz. Pacific coast: Alaska to Baja California Sur; Isla Guadalupe; Isla Magdalena; Nayarit to Michoacán; Japan.

TYPE LOCALITY. Pacific Beach, south of La Jolla, San Diego County, California.

Ulva californica is a species of seaweed, a green alga in the family Ulvaceae, the sea lettuces. This species is found from Alaska to California.

Ulva californica Wille, 1899, frequentemente referida pelo sinónimo taxonómico Ulva angusta, é uma espécie de alga marinha pertencente à família Ulvaceae com até 5 mm de comprimento. A espécie tem distribuição natural desde o Alaska à Califórnia.