Lagascea rigida (Cav.) Stuessy [ Lagascea mocinniana Moc. & Sessé ex DC.] [Compositae] M. Sessé, V. Cervantes, M. Mociño, Drawings from the Spanish Royal Expedition to New Spain (1787–1803) (to be published in the Flora Mexicana, Real Jardin Botanico, Madrid, Spain): t. 105][Real Jardin Botanico no. 105] ()
