Can you help identify these flowers form Olavipe?

This is 'thumpa'; there is a spider on it.

See:

Tropical Medicinal Plants: Thumpa, a vanishing beauty

Periwinkle. See:

Health, Gardening: Periwinkle, a wonder plant

?

"Nanthyarvattam'. English name? Botanical name?

Locally this is called 'parijatham'. I don't think that is right.

English name? Botanical name?



Photos: Periwinkle by me, rest by Rejo.

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