Bromidium tandilense (Kuntze) Rúgolo

Echeverría, María L., Alonso, Sara I. & Comparatore, Viviana M., 2017, Survey of the vascular plants of Sierra Chica, the untouched area of the Paititi Natural Reserve (southeastern Tandilia mountain range, Buenos Aires province, Argentina), Check List 13 (6), pp. 1003-1036 : 1018

Bromidium tandilense (Kuntze) Rúgolo

Figure 14

Bromidium tandilense (Kuntze) Rúgolo (1982) : 2002 — Zuloaga et al.

(2012b): 260; Flora Argentina (2017); Tropicos (2017).

Agrostis tandilensis (Kuntze) Parodi (1943) : 158 — Cabrera (1970): 231. Bromidium hygrometricum var. tandilense Kuntze (1898) : 343.

Therophyte, native with distribution in the Southern Cone Region of South America; previously reported from Buenos Aires province but not from mountainous areas.

Characteristics: Annual herb, 5–50 cm tall. Leaves linear, parallel-veined, to 10 cm long, green, glabrous, with membranaceous ligule. Inflorescence: a spike-like panicle, to 8 cm long, with many 1-flowered spikelets, ca 3 mm long; glumes unequal; lemma with 4.5–6 mm long awns; palea absent. Fruit: a fusiform caryopsis.

Comments. This is an infrequent species in the study area. It grows in shallow soils and rock cracks on the sum-

mits. It is similar to Bromidium hygrometricum (Ness) Ness & Meyen , which also has been found in Buenos Aires province, but B. hygrometricum has a glabrous lemma.