Festuca uninodis, Hackel, 1906

Ospina, Juan C., 2016, New lectotypifications and new synonyms in Festuca (Poaceae, Pooideae, Loliinae) from the Central Andes, Phytotaxa 247 (4), pp. 247-258 : 251

Festuca uninodis and F. stuckertii

The following morphological characters were observed in specimens attributed to Festuca uninodis and F. stuckertii , as well as in examined type material of these species: culms 30–45 cm tall with one node at the base, scabrous; sheaths greenish, papery; auricles 1–1.5 cm long; ligules 0.8–1.2 cm long with truncate apex, scabrous, margin membranaceousdentate and ciliate; lower glumes 3–3.5 mm long with acuminate apex, upper glume 4–4.5 mm long, with acute apex; and lemmas 6–7.5 mm long.

The following anatomical attributes were observed in both species: outline rounded in V-shape, with adaxial and abaxial distinguishable ribs, ribs associated with 4–5 vascular bundles between the midrib and the margin of first and second orders all situated in the abaxial surface; sclerenchyma arranged in small and well developed girder that are in contact with the vascular bundles, formed by 3–5 cells at the adaxial and abaxial side; bulliform cells scarcely differentiated in the adaxial surface are present between the ribs [interpretation based on Türpe (1969, Fig. 16f, pp. 237; Fig. 20f, pp. 247)].