Algae of the Western Great Lakes Area (Exclusive of Desmids and Diatoms)

Non-marine algae of Australia:1. Survey of colonial gelatinous blue-green macroalgae (Cyanobacteria)

“…Although not previously reported from Australia, N. pruniforme is particularly common in streams flowing through farmland with Allocasuarina woodland remnants in New South Wales. Such streams are apparently alkaline, consistent with Prescott's (1951) reporting this species from hard-water streams in North America. A similar habitat preference is shown in Australia, by N. commune (although on soil) and often by N. verrucosum.…”

“…The descriptions in Bornet & Flahault (1886, the starting point for nomenclature in most of this group, have been consulted by us where applicable, and original descriptions sought in other cases. The next principal reference used was Geitler (1932), and comparison was made to Prescott (1951), Desikachary (1959) and, for Chroococcales, Komárek & Anagnostidis (1999). This most recent monograph does not specify type specimens, and presents a carefully worded justification for the comparison of specimens with published descriptions rather than Types or culture strains.…”

“…The Western Australian specimen (Bratt 67/250) had been assigned in HO to Wollea saccata (Wolle) Bornet & Flahault, but is generally slightly smaller in cell dimensions than Prescott's (1951) description and lacked the characteristic large akinetes of W. saccata. Bratt 67/250 is probably best placed in N. flagelliforme although the colonies are wider and flatter than the Yunta or Mereenie specimens or commercial N. flagelliforme, but agree in other respects.…”

“…Some specimens, however, have included small attached colonies (or proliferations, see Dodds et al 1995) in sacks at the margins of thalli. Prescott (1951) accepts a number of species (e.g. N. commune, N. muscorum C. Agardh, N. linckia (Roth) Bornet & Flahault, N. verrucosum and N. prunifome) that can be found on soil and in water, where they form as sheets, crusts or globules.…”

Spatial and temporal variations of two cyanobacteria in the mesotrophic Miyun reservoir, China

“…Species identification was carried out following previously introduced methods (Prescott, 1951;Bellinger, 1974;Ling and Tyler, 2000). The algal cell density was determined by the counting chamber method using Sedgewick-Rafter cell (50 mm × 20 mm × 1 mm) under a Olympus BX51 microscope with phase contrast and bright field illumination.…”