Table 2.

Mechanical isolation: Experimental design to compare the intra‐ and interspecific pollen transfer between both high and low reciprocal organs of Primula elatior and Primula vulgaris (see also Figure S2). Each experiment was replicated 10 times

Experimental run	Triad	Organ level	Species
			Pollen‐donor flower	First pollen‐recipient flower	Second pollen‐recipient flower
EL‐run	I	Low	EL	VU	EL
	II			EL	VU
	III	High	EL	VU	EL
	IV			EL	VU
VU‐run	V	Low	VU	VU	EL
	VI			EL	VU
	VII	High	VU	VU	EL
	VIII			EL	VU

EL, P. elatior; VU, P. vulgaris; High, anthers of S‐morph flowers and reciprocal stigmas of L‐morph flowers; Low, anthers of L‐morph flowers and reciprocal stigmas of S‐morph flowers.