Once I made some research to find out which Hepaticas are species and which are varieties.
It resulted in the below, which looks quite similar to the one from Rodger Whitlock.
http://www.srgc.org.uk/smf/index.php?topic=5114.msg139840#msg139840I know falconeri, x media and maxima lacks in the below
Hepatica acutiloba = Hepatica nobilis var. acuta
Hepatica americana = Hepatica nobilis var. obtusa
Hepatica angulosa = Hepatica transsylvanica
Hepatica asiatica = Hepatica nobilis var. asiatica
Hepatica insularis = Hepatica nobilis var. insularis
Hepatica japonica = Hepatica nobilis var. japonica
Hepatica pubescens = Hepatica nobilis var. pubescens
Hepatica pyrenaica = Hepatica nobilis var. pyrenaica
Hepatica transsylvanica = Hepatica transsilvanica
Hepatica triloba = Hepatica nobilis var. nobilis
Hepatica triloba var. americana = Hepatica nobilis var. obtusa
Hepatica triloba var. acuta = Hepatica nobilis var. acuta
Hepatica yamatutae = Hepatica henryi
What I found out at that time was, that yamatutai is a synonym to henry. Later I read that yamatutai is henry var. yamatutai.
Thank you for your key Aaron, it is very useful, and what do you say about the question henry/yamatutai?
Maybe others in the forum know something?
And what about maxima? is it a species or a variety?
There is disagreement in the literature.