South & Hooper, Algae Terr. Nov.
South, G.R.; Hooper, R.G. [83 - 102]

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0004449
Hooper, R. G. #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, Division No. 2, West Point, Grand le Pierre, Fortune Bay

University of South Carolina, A. C. Moore Herbarium Algae Collection
Catalog #: USCH-A-0000496
Hooper, R. G. #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, Division No. 2, Grand le Pierre; West Point, Fortune Bay

University Herbarium, University of California, Berkeley
Catalog #: UC1838677
R. C. Hooper #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, West Point, Grand le Pierre, Fortune Bay.

University Herbarium, University of California, Berkeley
Catalog #: UC1450691
R. G. Hooper #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, West Point, Grand le Pierre, Fortune Bay.

University of Michigan
Catalog #: 644558
R.G. Hooper #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, Division No. 2, West Point, Grand le Pierre, Fortune Bay

University of Massachusetts - Amherst
Catalog #: 00382601
R.G. Hooper #8650 12 December 1971
Callithamnion tetragonum (Withering) S.F.Gray
Canada, Newfoundland and Labrador, Division No. 2, West Point, Grand le Pierre, Fortune Bay