Spontaneous Hybridization between Pinus mugo and Pinus sylvestris at the Lithuanian Seaside: A Morphological Survey

Figure 3

Putative P. sylvestris (female) × P. mugo (male) hybrid representing the hybrid group A (H S × M, Figure 5; Table 2; Id PD43). Left, two-stemmed, 12 meter tall (the other stem cut), bending at the base (like mugo); upper stem bark dark brown (sylvestris), no paper flakes (mugo) but the fissures reddish brown (sylvestris); upper right: shoots brown (sylvestris), needles greyish green (sylvestris), stem unit tip does not bend backwards at the needle sack (sylvestris); lower right: cone apophysis glossy (mugo) without hook, that is, flat (sylvestris), umbo bordered (mugo), cone symmetric (sylvestris).