The ancients had little doubt about the true shape of the earth: "It's [the world's] shape has the rounded appearance of a perfect sphere. This is shown first of all by the name of 'orb' which is bestowed upon it by the general consent of mankind. ...Our eyesight also confirms this belief, because the firmament presents the aspect of a concave hemisphere equidistant in every direction, which would be impossible in the case of any other figure."
Pliny the ElderThere is an herb named in Latine Convolvulus (i.e. with wind), growing among shrubs and bushes, with carrieth a flower not unlike to this Lilly, save that it yeeldeth no smell nor hath those chives within; for whitenesse they resemble one another very much, as if Nature in making this floure were a learning and trying her skill how to frame the Lilly indeed.
Pliny the Elder