Table 4. Pearson Correlation Coefficient among the 15 main morphological traits selected by PCA.

	ceplEC	cpEC	cpcEC	cfbEC	lfbEC	cfaEC	lfaEC	cpRL	CpcRL	cfbRL	lfbRL	cfaRL	lfaRL	ceplRL
cepaEC	0.37250	0.67749	0.63906	0.25834	0.36064	0.32833	0.38760	0.18725	0.18168	0.10231	0.17339	0.06464	0.13203	0.27303
ceplEC		0.25490	0.19777	0.42333	0.34562	0.59166	0.37524	0.43510	0.45701	0.55123	0.41775	0.54939	0.40908	0.63894
cpEC			0.89217	0.32697	0.66794	0.43380	0.69563	0.31975	0.34412	0.21856	0.40449	0.17780	0.37299	0.18083
cpcEC				0.20093	0.61218	0.30156	0.58684	0.25754	0.30851	0.14790	0.31147	0.12319	0.29382	0.08002
cfbEC					−0.03601	0.92978	0.39393	0.22632	0.25693	0.45542	0.30729	0.43767	0.32124	0.37383
lfbEC						0.19895	0.82556	0.57778	0.66224	0.47820	0.72009	0.46818	0.69055	0.31061
cfaEC							0.57200	0.37904	0.40092	0.59825	0.46392	0.58664	0.47001	0.50291
lfaEC								0.61737	0.68435	0.61047	0.80999	0.58790	0.78829	0.38618
cpRL									0.88291	0.85104	0.84182	0.82180	0.80457	0.64927
cpcRL										0.78751	0.85026	0.79257	0.85033	0.59138
cfbRL											0.85815	0.98580	0.85049	0.83243
lfbRL												0.83725	0.98489	0.64448
cfaRL													0.84764	0.84738
lfaRL														0.65378

Trait codes: distal leaflet lengths on main axis (cfaEC); basal leaflet lengths on main axis (cfbEC); distal leaflet widths on main axis (lfaEC); basal leaflet widths on main axis (lfbEC); petiolule length on main axis (cpcEC); petiole length on main axis (cpEC); length of the adnate portions of the stipules on main axis (cepaEC); length of the free portions of the stipules on main axis (ceplEC); distal leaflet lengths on lateral branches (cfaRL); basal leaflet lengths on lateral branches (cfbRL); distal leaflet widths on lateral branches (lfaRL); basal leaflet widths on lateral branches (lfbRL); petiole length on lateral branches (cpRL); petiolule length on lateral branches (cpcRL); length of the free portions of the stipules on lateral branches (ceplRL). Bold data show correlation between traits at 5% probability.