Just published two articles in a special issue on Gnetales:
Rydin, C. & Hoorn, C. (2016) The Gnetales: past and present. Grana 55, 1-4. DOI: 10.1080/00173134.2015.1118530
Bolinder, K., Norback Ivarsson, L., Humphreys, A.M., Ickert-Bond, S., Han, F., Hoorn, C. & Rydin, C. (2016) Pollen morphology of Ephedra (Gnetales) and its evolutionary implications. Grana 55, 24-51. DOI: 10.1080/00173134.2015.1066424
Ecology of the past 