Caloglossa was first used as a generic name in the binomial Caloglossa hookeri Harv. (in Hook. f. & Harv. in London J. Bot. 4: 270. 1845), published without a description. In a later article by Hooker & Harvey (London J. Bot. 4: 542.1845) Caloglossa was mentioned as a genus proposed by Harvey in manuscript to accommodate Delesseria leprieurii Mont., but subsequently abandoned. J. Agardh (Sp. Alg. 2: 680, 682. 1852) published Caloglossa as the epithet of the name of a taxon of unspecified rank within the genus Delesseria, but without giving Harvey explicit credit. Harvey (l.c.) published Caloglossa as a subgenus of Delesseria, with a description based on D. leprieurii, the only species known at that time. The elevation of this subgenus to generic rank was traditionally accredited to J. Agardh (Sp. Alg. 3(1): 498. 1876) until Silva & al. (Univ. Calif. Publ. Bot. 79: 449. 1996) pointed out that Martens (l.c.) should receive the credit. Caloglossa is a member of Delesseriaceae. In tropical and subtropical regions, Caloglossa most often grows on trunks, prop roots, and pneumatophores of mangroves in association with two other red algal genera, Bostrychia (Rhodomelaceae) and Catenella (Caulacanthaceae). This association (Bostrychietum) was the subject of detailed studies by the late Erika Post during the period 1936-1968. In temperate regions, Caloglossa most often grows on the basal parts of salt marsh plants, but it may also grow on rocks. Although usually found in fully marine or brackish habitats, it may penetrate estuaries into the fresh water of rivers. The most recent monograph of Caloglossa is that by King & Puttock (Austral. Syst. Bot. 7: 89-124. 1994), who recognized eight species. Apiarium is a generic name that has never been indexed or otherwise cited. It was published with a description by Charles Ferson Durant (1805-1873) in a rare book titled and Corallines of the Bay & Harbor of New York, Illustrated with Natural Types (New York: George P. Putnam, 1850). Durant was a gentleman of unknown occupation who resided in Jersey City, New Jersey, across from the lower end of Manhattan at the point where the Hudson River empties into Upper New York Bay. He diligently searched the shores near his home, collecting as many different kinds of seaweeds and zoophytes as he could find. The resulting specimens were then mounted on unnumbered pages appended to 43 pages of elaborately printed letterpress. The book is bound in heavy boards covered by red leather, with an intricate design imprinted in gold. Durant gave each species a number, not differentiating between various collecting sites or dates. The numbers run from 1 through 293 with many gaps since only 123 taxa are treated. Durant did not explain either his system of numbering or the taxonomic scheme that he was following. He mentioned Agardh, Greville, and Harvey, suggesting that he was guided by C. Agardh's Species Algarum (1820-1828), Greville's Britannicae (1830), and Harvey's Manual of the British Marine Algae (1849) and early volumes of Phycologia Britannica (1846-1850). Each of the 50 copies that Durant prepared included specimens representing all or nearly all accepted species. Some copies were inscribed by Durant and sent to correspondents while others were for sale in Putnam's bookstore at an astounding price of $100. The residuum of specimens found its way to the New York Botanical Garden by some unknown path, possibly as a gift from Durant's daughter Emma, who upon request donated a copy of her father's book to the Staten Island Association of Arts and Sciences in 1915. The rarity and quaintness of this book has evoked two notes, one by Hollick (Proc.