Ernodesmis verticillata

Ernodesmis verticillata (Kützing) Børgesen

Valonia verticillata Kützing, 1847:165.

Ernodesmis verticillata (Kützing) Børgesen, 1912b:259, figs. 10–12; Børgesen, 1913:66, figs. 52–54; Dawson, 1949:244; Dawson, 1959a:4, 8, 11; Dawson, 1961b:379; Dawson, 1966a:6; Dawson, 1966b:55; Papenfuss and Chihara, 1975:309, figs. 1–3; Huerta-Múzquiz and Garza-Barrientos, 1975:4; Huerta-Múzquiz and Mendoza-González, 1985:44; Mateo-Cid et al., 1993:51; González-González et al., 1996:286; La Claire et al., 1997:831; Rodríguez-Morales and Siqueiros-Beltrones, 1999:22; Paul-Chávez and Riosmena-Rodríguez, 2000:146; Mateo-Cid et al., 2000a:61, 70; Pedroche et al., 2005:55; Mateo-Cid et al., 2006:49, 58; Servière-Zaragoza et al., 2007:7.

Algae light green tufts, up to 2.5 cm (sometimes more) tall; thallus a single elongate, cylindrical stalk cell, 10–20 mm in length and up to 2.5 mm in diameter, that bears a whorl of cylindrical branches at its apex. Each branch of the initial whorl, in turn, bears another whorl of similar but smaller cells; and this whorl pattern may repeat itself up to 6 times.

HABITAT. On rocks, usually in shaded areas, in crevices, tidepools, and lagoons; mid to low intertidal.

DISTRIBUTION. Gulf of California: Puerto Peñasco to Cabeza Ballena. Pacific coast: Isla Socorro (Islas Revillagigedo).

TYPE LOCALITY. St. Croix, U.S. Virgin Islands.

Ernodesmis verticillata (Kützing) Børgesen

St. Andrew: 11, 67–526, frequent on rocks beyond the inshore reef in 6–12 dm of water, also, drifted ashore, 67–564.