Gardneria and Spigelia (Loganiaceae), two genera new to the Flora of Peninsular Malaysia Author Julius, Avelinah Author Kamin, Imin Author Kiew, Ruth Author Utteridge, Timothy M. A. Herbarium, Library, Art and Archives, Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AE, U. K.; e-mail: t. utteridge @ kew. org text Phytotaxa 2013 129 1 39 46 https://www.mendeley.com/catalogue/a975382d-723f-3c1a-8eff-4a82133578bf/ journal article 10.11646/phytotaxa.129.1.3 1179-3163 5085629 Key to Loganiaceae genera in Peninsular Malaysia 1. Annual or perennial herbs............................................................................................................................................. 2 - Trees, shrubs or lianas................................................................................................................................................... 4 2. Flowers 4-merous, solitary or inflorescences few-flowered, branches up to 25 cm long; leaves usually with a single vein or 1−3-veined ................................................................................................ Mitrasacme Labillardière (1805: 35) - Flowers 5-merous, inflorescences many-flowered, pedunculate, branched or unbranched to 15 cm long; leaves pinnately veined ............................................................................................................................................................ 3 3. Inflorescences branched, not subtended by a pseudowhorl of leaves, leaves petiolate; corolla 2−3 mm long, ovary semi-inferior...................................................................................................................................................... Mitreola - Inflorescences unbranched, subtended by a pseudowhorl of four subsessile leaves; corolla 6−7 mm long, ovary superior .............................................................................................................................................................. Spigelia 4. Leaves 3−5(−7)-pliveined (with one or a few pairs of strongly developed basal nerves in addition to the midrib); axillary tendrils and/or axillary thorns often present ................................................... Strychnos Linnaeus (1753: 189) - Leaves pinnately veined; tendrils and thorns absent .................................................................................................... 5 5. Inflorescences terminal, sometimes also axillary in axils of upper pair of reduced leaves; flowers 5-merous; fruit capsular with few to many small, slender seeds .............................................................. Norrisia Gardner (1849: 326) - Inflorescences axillary; flowers 4−5-merous (4-merous in Peninsular Malaysia ); fruit a berry with 1−2 orbicular seeds (in Peninsular Malaysia )....................................................................................................................... Gardneria