Thomas Marcussen

4 Questions 32 Answers 0 Followers

Questions related from Thomas Marcussen

Does anyone have hires images of the style/stigma of Viola filicaulis?

Style shape is a highly important character for identifying species groups within Viola. The published descriptions of the style of the New Zealand endemic V. filicaulis are however insufficient....

10 July 2021 306 0 View

Where to get estimates of paleo land areas for continents at the Cretaceous-Paleogene boundary and/or early Paleocene?

Hi all, Does anyone here know where to obtain estimates of paleo land areas for continents? I need data for the Cretaceous-Paleogene boundary and/or early Paleocene for each continent...

09 November 2020 193 4 View

What are the 'widest' allopolyploids known?

Hybridisation and allopolyploidy can happen between lineages that diverged a long time ago. The 'widest' hybrids that I am aware of are a fern (xCystocarpium roskamianum; Rothfels et al. 2015) and...

20 November 2016 10,021 3 View

Does anyone have examples of plant lineages that underwent adaptive radiation following tetraploidisation and colonisation of the Americas?

What I am asking for is lineages that a few million years ago dispersed to North or South America, somehow became allopolyploids (for instance after hybridisation with indigeneous species), and...

01 November 2015 1,690 5 View