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. 2017 Aug 25;5:e3704. doi: 10.7717/peerj.3704

Table 1. Phenotypic correlations (Spearman’s rank) among morphological traits in Orchis mascula (above diagonal) and O. pauciflora (below diagonal).

All plants from the three years were pooled together.

Plant height Flower number Labellum width Labellum length Spur length Anthocyanins content in tepals Anthocyanins content in labellum Carotenoid content in tepals Carotenoid content in labellum
Plant height 0.76*** 0.47*** 0.48*** 0.44*** 0.29*** 0.25*** 0.07 −0.07
Flower number 0.51*** 0.25*** 0.30*** 0.24*** 0.15** 0.14** 0.15** 0.06
Lebellum width 0.32*** 0.28*** 0.71*** 0.69*** 0.39*** 0.48*** −0.16** −0.09
Labellum length 0.26*** 0.22*** 0.49*** 0.63*** 0.40*** 0.50*** 0.01 0.06
Spur length 0.22*** 0.10* 0.44*** 0.14** 0.47*** 0.50*** −0.05 −0.05
Anthocyanins content in tepals 0.16** 0.19*** 0.08 0.22*** 0.01 0.66*** −0.01 −0.08
Anthocyanins content in labellum 0.18*** 0.42*** 0.31*** 0.24*** 0.08 0.45 −0.01 0.01
Carotenoid content in tepals −0.09* 0.21*** 0.19*** −0.03 −0.05 −0.05 0.18*** 0.43***
Carotenoid content in labellum 0.24*** 0.19*** 0.30*** 0.10* 0.00 0.18*** 0.25*** 0.32***

Notes.

***

P < 0.001.

**

P < 0.01.

*

P < 0.05.