Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 191-194

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 195-205

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 206-208

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 209-210

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 211-248

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 249-251

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 252-256

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 257-269

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 270-278

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 279-280

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 280-281

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 281-282

Published in Sida, Contributions To Botany, in 1968, in volume 3, issue 4, pages 282

Published in Sida, Contributions To Botany, in 1968, in volume 4, issue 1, pages 1-56