marceau_c's Favorites

Collected by Olga Andreevna Chernyagina
Key morphological traits of Ulva intestinalis from a stream flowing from the basin collecting water from the drilled thermal springs in Esso village, Kamchatka in May 2017 (LE): a, b -wrinkled tubular thalli with short robust primary branches (arrowhead), c -short robust primary branch, d -cells at primary branch illustrated at c, e -view of tangential irregular cross section at basal part of plant, f -lateral view of basal part of plant with narrow strip of cells having different general appearance, i.e., more narrow, elongated and with degraded chloroplasts, a filament of Tribonema viride Pascher (Ochrophyta, Xanthophyceae, Tribonemataceae) is visible at low right corner, g, h -irregular placement of cells with solitary pyrenoids in wide parts of plant, view from above. Scale bars: a, b -400 μm, c -200 μm, d-g -40 μm, h -20 μm.