Turnera

IDENTIFICATION KEY TO THE SPECIES OF TURNERA View in CoL ( PASSIFLORACEAE View in CoL S. L.) FROM CHAPADA DAS MESAS NATIONAL PARK AND SURROUNDINGS

1. Stamen margins fused with petal claw up to the throat, forming a nectariferous sac between filaments and opposite sepal........................... 2 2. Extrafloral nectaries absent; stipules well developed, 4–6 mm long..................................................... Turnera stipularis Urb. View in CoL 2. Extrafloral nectaries present; stipules inconspicuous, up to 0.6 mm long................................................................... 3 3. Flowers with yellow throat, without dark basal spot, sometimes dark blue/violet veins at the base..................... Turnera coerulea DC. View in CoL 3. Flowers with dark brown throat, with dark basal spot, without dark blue/violet veins at the base...................... Turnera subulata Sm. View in CoL 1. Stamens fused with floral tube only basidorsally............................................................................................. 4 4. Flowers in dichasia; peduncle free from bract petiole; fruit exocarp verrucose............................... Turnera brasiliensis Willd. ex Schult. View in CoL 4. Flowers in racemes; peduncle fused with bract petiole; fruit exocarp smooth............................................................... 5

5. Leaf surfaces with dark spots; sepals usually shorter than petals; sepals and bracts reddish in vivo; petals generally orange in vivo, claw hirsute on the midrib to the midportion of the blade................................................. Turnera carolina M.J.C.Silva & L.Rocha

5. Leaf surfaces without dark spots; sepals usually longer than petals; sepals and bracts green in vivo; petals generally yellow in vivo, entirely glabrous or pilose only at base.......................................................................... Turnera melochioides Cambess. View in CoL