Mr Cunningham added to his collection of plants at Cape Graftonby Diane ChallenorPosted on June 18, 1821July 28, 2020 18th June 1821 On this day, 18th June 1821, Allan Cunningham was on land at Cape Grafton where the botany produced many interesting plants to our collector. 1 Source: Robert Heward’s Biographical Sketch of Allan Cunningham, page 268.[↩]