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Crossref Citations

1. Pollen Morphology of the Periplocaceae from Madagascar
Rudolf L. Verhoeven, Hendrik J. T. Venter
Grana  vol: 33  issue: 6  first page: 295  year: 1994  
doi: 10.1080/00173139409429016

2. Pollen morphology of Periploca (Periplocaceae)
R.L. Verhoeven, H.J.T. Venter
South African Journal of Botany  vol: 60  issue: 4  first page: 198  year: 1994  
doi: 10.1016/S0254-6299(16)30613-5

3. Pollinium structure in periplocoideae (apocynaceae)
Rudolf L. Verhoeven, Hendrik J. T. Venter
Grana  vol: 37  issue: 1  first page: 1  year: 1998  
doi: 10.1080/00173139809362633

4. Reassessing palynological characters in the subfamilies Periplocoideae and Asclepiadoideae (Apocynaceae): taxonomic and evolutionary implications
Sayed Afzal Shah, Mushtaq Ahmad
Palynology  vol: 38  issue: 2  first page: 224  year: 2014  
doi: 10.1080/01916122.2014.893264

5. Buckollia, a new genus in the Periplocaceae
H.J.T. Venter, R.L. Verhoeven
South African Journal of Botany  vol: 60  issue: 2  first page: 93  year: 1994  
doi: 10.1016/S0254-6299(16)30638-X