Magnolia sirindhorniae Noot. & Chalermglin
Thailand.— NORTH-EASTERN: Loei; EASTERN: Chaiyaphum; CENTRAL: Lop Buri.
Distribution.— Endemic.
Conservation status.— NE.
Ecology.— Primary rain forest in fresh water swamp. Altitude 60–170 m. Flowering April–May; fruiting June–September.
Vernacular.— Champi sirindhorn (จำปีสิรินธร).
Magnolia (Magnolia sirindhorniae): http://arkive.org/magnolia/magnolia-sirindhorniae
Nooteboom, H.P.; and Chalermglin, P. 2000. New species of Magnolia from Thailand. Blumea 45: 245-247.