Trisetum tenuiforme, Jonsell

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 223

15. T. tenuiforme Jonsell , Bot. Jour. Linn. Soc. 76: 320(1978)

( T. tenue (Hackel) Chrtek , non Roemer & Schultes).

Laxly caespitose perennial with slender, glabrous stems 15-40 cm. Leaves up to 6 cm x c. 1 mm, mostly convolute, somewhat hairy or glabrous. Basal sheaths densely retrorsely puberulent. Panicle 3-6 x 0-5-1-5 cm, lax, with fewer than 50 spikelets, narrowly lanceolate to oblong, light brownish. Spikelets 4-6 mm. Glumes broadly hyaline, the lower c. £ as long as the upper. Rhachillahairs c. 0-5 mm; callus-hairs c. 0-3 mm. Lemma 4-5-5 mm, 2-fid; awn inserted somewhat above middle of lemma, slightly to strongly curved. Anthers 2-2-5 mm. • Mountains of N. W Greece and E. Albania. Al Gr.

T. burnoufii Req. ex Pari. , Fl. Ital. 1: 263 (1850) ( T. flavescens var. burnoufii (Req. ex Pari.) Briq. ), described from Corse, has not been collected since 1844. It is like 15 but has densely puberulent stem and spikelets and rhachilla-hairs up to 1 mm. Plants from Corse intermediate between T. burnoufii and 13 have been called T. flavescens var. corsicum (Rouy) Briq. They require further study.