Table 1.

Phylogenetic ages of the genera, growth form, leaf habit and distances of studied taxa and estimates of evolutionary divergence

Species are in the order of their evolutionary age. Evolutionary divergence is defined as the number of base substitutions per site between sequences.

Species (abbreviation)	Family	Evolutionary age of genus (My)	Growth form	Evolutionary divergence
Selaginella uncinata (S.u.)	Selaginellaceae	405 (Lang et al., 2010)	Herb	S.u.	Ps.n.	A.h.	C.r.	Ma.r.	E.m.	Me.g.	Pin.s.	Pic.a.	T.b.	Po.a.	Po.n.
Psilotum nudum (Ps.n.)	Psilotaceae	306 (Pryer et al., 2004)	Herb	0.87
Araucaria heterophylla (A.h.)	Araucariaceae	197 (Knapp et al., 2007)	Tree	0.76	0.61
Cycas revoluta (C.r.)	Cycadaceae	175 (Magallón and Sanderson, 2005)	Tree	0.69	0.59	0.23
Macrozamia riedlei (Ma.r.)	Zamiaceae	175 (Magallón and Sanderson, 2005)	Tree	0.67	0.61	0.23	0.094
Ephedra minuta (E.m.)	Ephedraceae	168 (Rydin et al., 2004)	Shrub	1.23	0.85	0.68	0.67	0.70
Metasequoia glyptostroboides (Me.g.)	Cupressaceae	146 (Hemsley and Poole, 2004)	Tree	0.87	0.66	0.18	0.27	0.27	0.71
Pinus sylvestris (Pin.s.)	Pinaceae	140 (Wang et al., 2000)	Tree	0.80	0.77	0.22	0.30	0.29	0.67	0.25
Picea abies (Pic.a)	Pinaceae	130 (Wang et al., 2000)	Tree	0.79	0.69	0.19	0.27	0.26	0.68	0.23	0.080
Taxus baccata (T.b.)	Taxaceae	120 (Cheng et al., 2000)	Tree	0.84	0.65	0.15	0.26	0.24	0.73	0.14	0.26	0.22
Podocarpus alpinus (Po.a.)	Podocarpaceae	75 (Biffin et al., 2012)	Shrub	0.88	0.71	0.20	0.29	0.29	0.75	0.24	0.32	0.31	0.25
Podocarpus nivalis (Po.n)	Podocarpaceae	75 (Biffin et al., 2012)	Shrub	0.87	0.71	0.20	0.28	0.29	0.75	0.24	0.31	0.30	0.24	0.004
Cupressus sempervirens (Cu.s.)	Cupressaceae	75 (Stewart, 1993)	Tree	0.88	0.70	0.19	0.25	0.29	0.70	0.085	0.28	0.26	0.16	0.26	0.26