Published in Iberus, in 2007, in volume 25, pages 63-71

Created: 2014-01-12, modified: 2014-01-12

Published in The Wilson Bulletin, in 1989, in volume 101, issue 3, pages 369-376

Created: 2016-12-04, modified: 2016-12-04

Published in Gayana Zoologia, in 1992, in volume 56, pages 141-180

Created: 2013-02-28, modified: 2013-02-28

Published in Acta Botánica Mexicana, in 2012, in volume 98, pages 23-49

Created: 2016-05-12, modified: 2017-04-27

Published in Journal of The Botanical Research Institute of Texas, in 2014, in volume 8, issue 2, pages 441-447

Created: 2019-01-27, modified: 2019-01-27