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Decaisninatomentosa (Loranthaceae), a new species of mistletoe from Samar Island, Philippines
Danilo N Tandang1,2,3,4, Marjorie Delos Angeles5,6, Inocencio Jr E Buot7
1Philippine National Herbarium, Botany and National Herbarium Division, National Museum of Natural History, National Museum of the Philippines, T.M. Kalaw St., Ermita Manila 1000, Metro Manila, Philippines Philippine National Herbarium, Botany and National Herbarium Division, National Museum of Natural History, National Museum of the Philippines, T.M. Kalaw St., Ermita Manila 1000 Metro Manila Philippines.
Background:
The extensive forests over limestone of the Samar Island Natural Park (SINP) on Samar Island, Philippines harbour a rich variety of unique species. In this contribution, we describe and illustrate a new Loranthaceous mistletoe, endemic to Samar Island named Decaisninatomentosa, representing the 12th member of the genus reported to the Philippines.
New Information:
This new species is similar to D.confertiflora (Merr.) Barlow with respect to the presence of shortly and densely off-white tomentose inflorescence and 6-merous flowers. However, it is unique amongst congeners in having tomentose and partially fused bracteoles which cover almost or entirely the ovary of individual flowers in the triads. To date, D.tomentosa seems to be restricted to the SINP and is only known from a handful of individuals. More studies are needed to properly assess the demography, host range, conservation status and phylogenetic position of this distinctive species of mistletoe.
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