Detail from Holotype (C.N.Forbes #434.M) at the Bishop Museum, downloaded from JSTOR Global Plants.

Cyanea magnicalyx Lammers

Genus: Cyanea

Status: Endangered. PEPP protected.

Range: West Maui, mesic forest, 450 m. No USGS map available.

Growth form: Shrub, 1.5-3 m tall.

Lammers segregated this species from Cy. mauiensis based on differences in floral morphology. The differences between the two Maui species are in hypanthium shape (obconic in magnicalyx, campanulate in mauiensis), corolla /hypanthium length ratio (6 x longer in magnicalyx, 10 x longer in mauiensis) and anther length (1 cm in magnicalyx versus 1.5 cm long in mauiensis). He said the West Maui species more closely resembled Cy. cylindrocalyx from Hawai'i, but he lists a suite of leaf and floral traits that separate these two species as well.

Specimens of this particular species exist back to the time of Forbes and Rock (1917, 1918). According to Lammers, one of the specimens listed in Rock's monograph (#10265) for Cy. grimesiana var. mauiensis is indeed Cy. magnicalyx. Also, according to Lammers, the specimen collected by Hillebrand listed as West Maui is Cy. mauiensis.

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