Three new species of Vaccinium L. (Ericaceae) from Mindanao Island, Philippines Author Tamayo, Maverick N. 0000-0003-0157-5116 Department of Biology, College of Science and Engineering, Texas Christian University, South University Drive, Fort Worth, Texas, 76129 USA m.n.tamayo@tcu.edu Author Amoroso, Victor B. 0000-0001-8865-5551 Center for Biodiversity Research and Extension in Mindanao (CEBREM), Central Mindanao University, Musuan, Bukidnon, 8710 Philippines & Plant Biology Division, Institute of Biological Sciences, College of Arts and Sciences, Central Mindanao University, Musuan, Bukidnon, 8710 Philippines victorbamoroso@gmail.com Author Coritico, Fulgent P. 0000-0003-3876-6610 Center for Biodiversity Research and Extension in Mindanao (CEBREM), Central Mindanao University, Musuan, Bukidnon, 8710 Philippines & Plant Biology Division, Institute of Biological Sciences, College of Arts and Sciences, Central Mindanao University, Musuan, Bukidnon, 8710 Philippines cfulgent@cmu.edu.ph Author Penneys, Darin S. 0000-0003-0727-2829 Department of Biology and Marine Biology, University of North Carolina Wilmington, 601 South College Road, Wilmington, North Carolina, 28403 USA penneysd@uncw.edu Author Callado, John Rey C. 0000-0001-6167-6184 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 Philippines johnreycallado02@gmail.com Author Horner, John D. 0000-0001-5584-3273 Department of Biology, College of Science and Engineering, Texas Christian University, South University Drive, Fort Worth, Texas, 76129 USA j.horner@tcu.edu Author Fritsch, Peter W. 0000-0002-3606-663X Botanical Research Institute of Texas, 1700 University Drive, Fort Worth, Texas, 76107 USA pfritsch@brit.org text Phytotaxa 2024 2024-05-08 647 1 19 33 http://dx.doi.org/10.11646/phytotaxa.647.1.2 journal article 10.11646/phytotaxa.647.1.2 1179-3163 13215513 Updated key to the small-leaved species of Vaccinium in the Philippines 1a. Leaf margin entire; leaf marginal glands one or two pairs confined near leaf base...........................................................................2 2a. Inflorescence terminal, or pseudoterminal; flowers in racemes.........................................................................................................3 3a. Hypanthium cupuliform; calyces triangular; pedicel 5–14 mm long.............................................................................. V . myrtoides 3b. Hypanthium broadly obconical; calyces broadly triangular; pedicel 5–7 mm long............................................................... V . fallax 2b. Inflorescence axillary; flowers solitary ..................................................................................................................... V . microphyllum 1b. Leaf margin crenulate; leaf marginal glands distributed along length of margin...............................................................................4 4a. Corolla long-conical (ampullaceous), without pronounced sulci and/or ridges............................................................... V. whitfordii 4b. Corolla urceolate, with pronounced sulci and/or ridges.....................................................................................................................5 5a. Bracteoles caducous before anthesis, ≤ 1 long; pedicels 6–7 mm long; anther tubules 0.6–0.8 mm long ............ V . hamiguitanense 5b. Bracteoles persistent until anthesis,> 1 mm long; pedicels 2–5 mm long; anther tubules 0.8–1.9 mm long....................................6 6a. Leaves with raised glands on each crenation; hypanthium glabrous ................................................................................. V . exiguum 6b. Leaves with sunken glands on each crenation; hypanthium white-hirsutulous ............................................................ V . coarctatum