Table 3.

Tracheary elements and vessel member end wall length–width(s) of Thelypteris interrupta from different population

Habitat	Plant organ	Protoxylem				Metaxylem
		Length		Width		Length		Width
		Range	M ± sd	Range	M ± sd	Range	M ± sd	Range	M ± sd
P1 Sw.O	Root	0.668–1.46	1.29 ± 0.023*	0.007–0.016	0.012 ± 0.003**	2.014–7.602	5.780 ± 0.154*	0.03–0.076	0.056 ± 0.015**
	Rhizome	0.405–0.069	0.564 ± 0.096*	0.005–0.028	0.017 ± 0.006**	2.564–0.012	2.564 ± 0.057**	0.027–0.069	0.048 ± 0.012**
	Petiole	0.742–1.472	1.071 ± 0.023*	0.008–0.019	0.016 ± 0.003**	4.325–7.114	5.380 ± 0.101*	0.023–0.059	0.041 ± 0.012*
	Frond	0.436–1.40	0.885 ± 0.22	0.017–0.029	0.021 ± 0.003	3.80–6.25	4.51 ± 0.64	0.027–0.04	0.032 ± 0.004
P2 D. O	Root	0.439–2.866	1.48 ± 0.005**	0.005–0.022	0.011 ± 0.066*	6.62–9.91	7.79 ± 0.113**	0.024–0.064	0.051 ± 0.095*
	Rhizome	0.28–0.71	0.59 ± 0.01**	0.005–0.019	0.013 ± 0.005*	1.481–2.542	2.33 ± 0.014*	0.012–0.038	0.019 ± 0.011*
	Petiole	0.513–2.109	1.45 ± 0.058**	0.005–0.022	0.011 ± 0.006*	4.560–8.858	6.306 ± 0.131**	0.025–0.071	0.054 ± 0.013**

Habitat	Plant organ	Vessel element				Vessel element Endplate
		Length		Width		Length		Width
		Range	M ± sd	Range	M ± sd	Range	M ± sd	Range	M ± sd
P1 Sw.O	Root	1.590–6.145	4.158 ± 0.102*	0.021–0.095	0.06 ± 0.025**	212.15–442.26	306.98 ± 75.56**	20.01–39.33	29.67 ± 7.25**
	Rhizome	1.284–1.720	1.529 ± 0.18**	0.041–0.115	0.076 ± 0.02**	197.3–461.77	292.42 ± 58.63**	28.04–54.07	44.01 ± 11.06**
	Petiole	1.866–5.197	3.006 ± 0.12**	0.018–0.065	0.032 ± 0.013*	357.5–987.94	640.08 ± 20.28**	29.93–69.31	45.83 ± 13.40*
	Frond	1.90–2.56	2.24 ± 0.18	0.019–0.032	0.024 ± 0.004	171.07–481.34	328.55 ± 73.41	15.88–28.04	21.51 ± 3.12
P2 D. O	Root	7.271–4.209	5.131 ± 0.11**	0.053–0.031	0.045 ± 0.008*	62.12–465.23	101.01 ± 58.89*	17.23–22.46	19.22 ± 1.93*
	Rhizome	3.250–1.00	1.325 ± 0.015*	0.064–0.024	0.040 ± 0.012*	103.3–348.26	205.77 ± 70.88*	5.45–15.41	13.39 ± 3.39*
	Petiole	2.775–1.639	2.363 ± 0.098*	0.067–0.052	0.057 ± 0.01**	73.6–356.39	175.7 ± 96.54*	15.41–56.21	46.70 ± 14.13**

In each case range (min.–max.) and M (mean) ± SD value is given. Measurement unit of tracheary elements length–width is in millimetre and vessel end wall is in micrometre. Italic font with double superscript denotes longest tracheid length and italic font with single superscript denotes shortest tracheid length of the respective organ from the studied population

P1Swo Population 1 swampy open land; P2DO population 2 of drier open