Silva Center for Phycological Documentation: Index Nominum Algarum

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Callithamnion arbuscula var. pacificum Harvey
new name
J. Linn. Soc., London. Botany 6: 175. 1862.
See Callithamnion pikeanum Harvey 1853
['Tidal rocks, Esquimault, Dr. Lyall. The specimens so nearly coincide with Orkney specimens of the European C. arbuscula that I cannot keep them specifically apart. The branching of the ramuli is less pectinate and more regularly pinnate than in the specimen from California on which my "C. Pikeanum" was founded.' Harvey thus makes C. pikeanum a variety of the European C. arbuscula, but at the same time points out a difference in branching between the type of C. pikeanum and the Lyall specimen from Esquimault [P.C.S.]

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1862 [read Feb. 20]
Notice of a collection of algae made on the north-west coast of North America, chiefly at Vancouver's Island, by David Lyall, Esq., M.D., R.N., in the years 1859-61.
J. Linn. Soc. [London], Bot.
6: 157-177
Taxa in INA: 12 keyboarded  p

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