Publications

Viljoen JA, Hedderson TAJ, Bjorå CS, Muasya AM. 2022. Monophyly and transoceanic dispersal in the widespread floating club-rush clade, Isolepis subgenus Fluitantes (Cyperaceae). Plant Ecology and Evolution, 155, 41–50. https://doi.org/10.5091/plecevo.84466

• Contributions: labwork; phylogenetic & statistical analysis; figures; manuscript main author
• Data analysis scripts: https://doi.org/10.5281/zenodo.5584964

Larridon I, Bauters K, Semmouri I, Viljoen JA, Prychid CJ, Muasya AM, Bruhl JJ, Wilson KL, Senterre B, Goetghebeur P. 2018. Molecular phylogenetics of the genus Costularia (Schoeneae, Cyperaceae) reveals multiple distinct evolutionary lineages. Molecular Phylogenetics and Evolution, 126, 196–209. https://doi.org/10.1016/j.ympev.2018.04.016

• Contributions: dated phylogeny reconstruction; manuscript edits

Tshiila AA, Chimphango SBM, Viljoen JA, Muasya AM. 2017. Two new species in the Ficinia indica complex (Cyperaceae, tribe Cypereae) from South Africa. Phytotaxa, 295, 49–59. https://doi.org/10.11646/phytotaxa.295.1.4

• Contributions: statistical analysis; manuscript edits
• Data analysis notebook: https://git.sr.ht/~javiljoen/tshiila2017-analysis/

Ito Y, Viljoen JA, Tanaka N, Yano O, Muasya AM. 2016. Phylogeny of Isolepis (Cyperaceae) revisited: Non-monophyletic nature of I. fluitans sensu lato and resurrection of I. lenticularis. Plant Systematics and Evolution, 302, 231–238. https://doi.org/10.1007/s00606-015-1253-7

• Contributions: phylogeny reconstruction; manuscript comments

Muasya AM, Viljoen JA, Dludlu MN, Demissew S. 2014. Phylogenetic position of Cyperus clandestinus (Cypereae, Cyperaceae) clarified by morphological and molecular evidence. Nordic Journal of Botany, 32, 106–114. https://doi.org/10.1111/j.1756-1051.2012.01700.x

• Contributions: labwork; micrography; phylogenetic analysis; figures; manuscript co-author

Viljoen JA, Muasya AM, Barrett RL, Bruhl JJ, Gibbs AK, Slingsby JA, Wilson KL, Verboom GA. 2013. Radiation and repeated transoceanic dispersal of Schoeneae (Cyperaceae) through the southern hemisphere. American Journal of Botany, 100, 2494–2508. https://doi.org/10.3732/ajb.1300105

• Contributions: labwork; phylogenetic & statistical analysis; figures; manuscript main author
• Manuscript, final version: viljoen2013.pdf (850 KB)
• Slides from presentation at SASSB X: sassb2012.pdf (3.3 MB)

Muasya AM, Viljoen JA, Stirton CH, Helme NA. 2012. Two new leafless species of Ficinia (Cypereae, Cyperaceae) from the Greater Cape Floristic Region of South Africa. South African Journal of Botany, 79, 96–101. https://doi.org/10.1016/j.sajb.2012.01.004

• Contributions: micrography; figures; diagnosis translation; manuscript edits

Muasya AM, Viljoen JA, Stirton CH. 2011. Isolepis namaquana (Cypereae, Cyperaceae), a new endemic species from the winter rainfall area of South Africa. South African Journal of Botany, 77, 55–58. https://doi.org/10.1016/j.sajb.2010.05.005

• Contributions: micrography; statistical analysis; figures; diagnosis translation; manuscript co-author

Latin translations of species diagnoses

Viljoen JA. 2016. Ecological influences in the biogeography of the austral sedges. MSc thesis. University of Cape Town.

• University library record: https://open.uct.ac.za/handle/11427/20302
• Thesis: mscthesis.pdf (2.7 MB)

Viljoen JA. 2010. Distribution of leaf dissection and sclerophylly along microhabitat gradients in pteridophytes of the Cape Peninsula. BSc Hons dissertation. University of Cape Town.

• Dissertation: ferns2010.pdf (2.0 MB)

Viljoen JA. 2010. Biogeography of Isolepis subgenus Fluitantes (C.B.Clarke) Muasya (Cyperaceae): niche conservatism, long-distance dispersal, and hybridization. BSc Hons dissertation. University of Cape Town.

• Dissertation: fluitantes2010.pdf (980 KB)
• Slideshow from presentation at SAAB: saab2010.pdf (1.1 MB)