Teucrium polium subsp. flavovirens Batt.

Marzouk, Ream I., El-Darier, Salama M. & Askar, Abdelbaset M., 2016, Nutlet micromorphological characters of Teucrium taxa (Lamiaceae) in Libya, Phytotaxa 263 (3), pp. 245-254 : 250

Teucrium polium subsp. flavovirens Batt.

The nutlet is dark brown and elliptic (0.96 × 0.58 mm) of glabrous surface with deep areoles that become shallower towards the abscission scar. The nutlet sculpture is reticulate of isodiametric cells with raised, wavy anticlinal and concave external periclinal walls. The thickness of muri is 2.5 μm and the diameter of lacuna is 9.4 μm. The abscission scar is elliptic and occupies about 51% from the nutlet length ( Table 2 and Fig. 1 , 21–23).

Figures

FIGURE 1. Teucrium nutlets micrographs using SEM. T. barbeyanum, 1–5; T. apollinis, 6–8; T. capitatum, 9–11; T. davaeanum, 12–14; T. lini–vaccarii, 15–17; T. polium, 18–20; T. polium subsp. flavovirens, 21–23; T. zanonii, 24–26; T. brevifolium, 27–31; T. campanulatum, 32–36; T. fruticans, 37–42.