Crassa usneoides (C.Agardh) Gurgel, J.N.Norris & Fredericq 2018

Gracilaria usneoides (C.Agardh) J.Agardh

Gracilaria usneoides (C.Agardh) J.AgardhIndian River Lagoon, Florida, USA. Littler, D.S., M.M. Littler and M.D. Hanisak (2008) Submersed Plants of the Indian River Lagoon: A Floristic Inventory and Field Guide. OffShore Graphics, Inc., Washington, DC, 298 pp. 584 distributed by Harbor BDiane Littler (

Publication Details
Crassa usneoides (C.Agardh) Gurgel, J.N.Norris & Fredericq 2018: 11

Published in: Gurgel, C.F.D., Norris, J.N., Schmidt, W.E., Le, H.N. & Fredericq, S. (2018). Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov. Phytotaxa 374(1): 1-23.

Type Species
The type species (holotype) of the genus Crassa is Crassa cornea (J.Agardh) Gurgel, J.N.Norris & S.Fredericq.

Status of Name
This name is currently regarded as a synonym of Crassiphycus usneoides (Mertens ex C.Agardh) Gurgel, J.N.Norris & Fredericq.

Sphaerococcus usneoides C.Agardh

Type Information
Type locality: Brazil ; (Gurgel et al. 2020: 221) Type: Type; F.K. Mertens; LD; 29447 (Gurgel et al. 2020: 221)

Origin of Species Name
Adjective (Latin), resembling the lichen genus Usnea.

General Environment
This is a marine species.

Created: 05 November 2018 by M.D. Guiry.

Last updated: 07 January 2019

Verification of Data
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 January 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 29 November 2022

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