Published in Gayana, in 1962, in volume 4, pages 1-59

Created: 2014-04-24, modified: 2014-04-24

Published in Pacific Science, in 1967, in volume 21, issue 2, pages 166-177

Created: 2017-09-17, modified: 2017-09-17

Published in Botanical Gazette, in 1921, in volume 71, issue 5, pages 378-391

Created: 2017-03-14, modified: 2017-03-14

Published in Transactions of The American Microscopical Society, in 1908, in volume 28, pages 75-84

Created: 2013-03-11, modified: 2013-03-11

Published in Transactions of The American Microscopical Society, in 1920, in volume 39, pages 51-85

Created: 2013-03-11, modified: 2013-03-11