Fig. 4.
The maximum likelihood tree with estimated ages based on NPRS of ITS (8·41 × 10−9 s/s/y of the evolutionary rates). The dashed line denotes the divergence time of Crawfurdia, Metagentiana and Tripterospermum from Gentiana.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.