Loganias

I think this is probably Schizacme montana (mountain mitrewort) although the flowers weren't fully open so it's a little hard to tell.

Popovkin 667 (HUEFS)

Popovkin 674 (HUEFS)

This species is listed as vulnerable under the Tasmanian Threatened Species Protection Act (at Dec 2013). The white corolla is only present on the younger and lower two flowers. The upper flowers have shed their seed.

This species is listed as vulnerable under the Tasmanian Threatened Species Protection Act (at Dec 2013)

Family: LoganiaceaeDistribution: Common in dry deciduous forests in India, Sri Lanka, Malaysia and China.5-8m tll deciduous trees. Stem bark ash colored, smooth.Leaves 5-8x3-5cm orbicular-ovate, coriaceous, base attenuate, entire, 3 nerves prominenet.Flowers 2-2.5 cm long, 5-8mm across, greenish yellow or greenish white,in short axillary cymes. Berries 3-5 cm across, pericarp thick, hard,orrange when ripe,pulp white, seeds 2 ashy-grey, compressed.Stem bark is used as fish poison, seeds are used in ulcers, dysentry and fevers. Fruit is poisonous.Photographed at Eastern ghats of Nellore district.Ref: Flora of Presidency of Madras, by J.S.Gamble.

The flora homoeopathica :.London :Leath & Ross,1852-1853..biodiversitylibrary.org/page/6026796

Spigelia pulchella Mart.LOGANIACEAE Local: Parque Natural Municipal Morro do Pai Incio, Palmeiras, Bahia, Brasil.Ref.: Medeiros, J.D. Guia de campo: vegetao do Cerrado 500 espcies. MMA, 2011.

Vascular Plants of the Osa Peninsula, Costa Ricasweetgum.nybg.org/osa/index.phpLos Charcos de Osawww.osaresearch.org/RA#14227