Published in Gayana Botanica, in 2000, in volume 57, pages 105-106

Created: 2014-01-14, modified: 2014-01-14

Published in Sitzungsberichte der Akademie der Wissenschaften mathematisch-naturwissenschaftliche Klasse, in 1923, in volume 131, pages 7-22

Created: 2017-04-24, modified: 2017-04-24

Published in The Wilson Bulletin, in 1985, in volume 97, issue 2, pages 201-214

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