Brazilian Journal of Botany On-line version ISSN 1806-9959
WERNER, Vera Regina and SANT'ANNA, Célia Leite. Occurrence of
the rare genus Microcrocis P. Richter (Chroococcales,
Cyanobacteria) in a coastal lagoon from southern Brazil. Rev.
bras. Bot. [online]. 2006, vol.29, n.1, pp. 183-186. ISSN
1806-9959. http://dx.doi.org/10.1590/S0100-84042006000100016.
The paper records the first occurrence of the genus Microcrocis
P. Richter (Chroococcales, Cyanobacteria), represented by M.
pulchella (Buell) Geitler, in Brazil. The species was found in
two zones, one with freshwater and the other with brackish
water, of a coastal lagoon of Rio Grande do Sul State
(31°15-31°30 S and 50°54-51°09 W). Comparison between M.
pulchella and its most closely related species is presented. Up
to now this species had occurrence records limited to freshwater
systems in temperate regions. Its presence in a subtropical
coastal lagoon from southernmost Brazil, either in fresh or in
brackish water, broadened the knowledge of the distributi