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Name derivation:

After French brothers H.M. and P.L. Crouan, phycologists who studied Caribbean seaweeds (Dawes and Mathieson 2008).

Classification:

Crouania  J. Agardh 1842;  17 of 33 species descriptions are currently accepted taxonomically (Guiry and Guiry 2016).

Class Florideophyceae;  Order Ceramiales; Family Callithamniaceae

Morphology:

Erect uniseriate bushy thallus up to 5 cm long, attached by rhizoids from basal cells.  Exude a jelly-like matrix that may have calcium carbonate.  Abundant branching; branchlets taper toward tips (Dawes and Mathieson 2008).

Similar genera:

Mesogloia C. Agardh 1824

Habitat:

Subtropical to tropical marine shores, common, entangled with other seaweeds or epiphytic on seagrass (Ibid.)

References:

Dawes, C.J. and A.C. Mathieson 2008. Seaweeds of Florida. University Press of Florida (592 pp).

Guiry, M.D., and G.M. Guiry  2016.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.  http://www.algaebase.org; searched on 16 January 2013.