The trapa or water-caltrops grew in the ditches, the nuts of which, with the seeds and the roots of the Nelumbium, generally furnished out our desert; to which, indeed, sometimes were added tolerably good peaches, dry spongy apples not unlike quinces in appearance, and pears of an immense size but of a harsh and austere taste.
"Travels in China, Containing Descriptions, Observations, and Comparisons, Made and Collected in the Course of a Short Residence at the Imperial Palace of Yuen-Min-Yuen, and on a Subsequent Journey through the Country from Pekin to Canton"
John Barrow
310 trapa in Port.
"Four Plays of Gil Vicente"
Gil Vicente