J. S.  Miller, ?New Boraginales from Tropical America 8. Two new species of Tournefortia (Heliotropiaceae) from Costa Rica?, Novon, vol. 25, pp. 47?50, 2016.

J. S.  Miller, ?New boraginaceae from tropical America 3: A new Tournefortia from Ecuador and Colombia?, Novon, vol. 10, no. 1, pp. 48 - 52, 2000.

J. S.  Miller, ?New Boraginaceae from tropical America 1: New species of Bourreria and Tournefortia from Costa Rica and a note on the publication of Cordia collococca?, Novon, vol. 9, no. 2, pp. 230 - 235, 1999.

J. S.  Miller, ?A new species of Tournefortia (Boraginaceae) from Peru?, Novon, vol. 7, no. 3, pp. 265 - 267, 1997.

J. S.  Miller, ?New boraginaceae from tropical America 2: Tournefortia vasquezii, a new species from Peru?, Novon, vol. 10, no. 1, pp. 45 - 47, 2000.