Psilurus incurvus, (Gouan) Schinz & Thell. Mibora Adanson Mibora minima, (L.) Desv. Briza L. Briza media, L. Briza media subsp. media

1. P. incurvus (Gouan) Schinz & Thell. , Viert. Naturf. Ges. Zürich 58: 40 (1913)

(B. aristatus (L.) Duval-Jouve, P. nardoides Trin. ).

Stems up to 35 cm, numerous, slender, smooth, glabrous. Leaves 1-5 cm x c. 0-5 mm; ligule very short, truncate. Lemma c. 4 mm; awn 3-5 mm. Anthers 0-4 mm. Caryopsis c. 4 mm. 2« = 28. Dry, open habitats. S. Europe. Al BI Bu Co Cr Ga Gr Hs It Ju Lu Rm Rs (K) Sa Si Tu.

34. Mibora Adanson 1

Annuals. Leaves flat. Inflorescence spike-like, unilateral. Spikelets laterally compressed, with 1 floret. Glumes subequal, membranous, longer than the floret, 1 -veined, persistent. Lemma 5-veined, truncate, densely hairy, thinner than the glumes. Palea as long as lemma, hairy.

1. M. minima (L.) Desv. , Obs. Pl. Angers 45 (1818).

Stems 2-15 cm, filiform, tufted. Leaves up to 2(-4) cm, mostly at the base of the plant, glabrous, with an obtuse, cartilaginous apex; sheaths with a wide scarious margin, glabrous, the lower without lamina; ligule up to 1 mm, truncate. Inflorescence 0-5-2 cm, usually purplish, very slender. Spikelets 1-8-3 mm, subsessile, in 2 rows along one side of the rhachis. Glumes oblong to ellipticoblong, obtuse to slightly emarginate, rounded on the back. Lemma often denticulate at apex. Anthers 1-1-7 mm. 2n=14. Sandy and other light soils, damp in winter. S., W. & W.C. Europe, northwards to c. 53° N. in Wales; an occasional casual elsewhere. Be Br?Bu Ga Ge Gr Ho Hs j i t Lu.

35. Briza L. 1

Subglabrous annuals or perennials. Inflorescence usually muchbranched. Spikelets ovoid or broadly triangular, laterally compressed; florets 4-20. Glumes ovate-orbicular, cordate, 3- to 9- veined, with wide scarious margin. Lemma suborbicular, cordate, 7- to 9-veined, closely imbricate. Palea ovate to obovate, obtuse, shorter than to almost equalling the lemma, with 2 narrowly winged keels. Ovary glabrous; styles terminal. Grain rounded dorsally, flattened ventrally.

1 Perennial, with non-flowering shoots; ligule 0-5-1- 5 mm

1. media 1 Annual, without non-flowering shoots; ligule at least 2 mm 2 Spikelets (10-)14-25 mm, not more than 12 2. maxima 2 Spikelets 3—5(—7) mm, usually numerous 3 Leaves at least 2 mm wide; panicle-branches patent;

pedicels mostly longer than spikelets 3. minor 3 Leaves not more than 1 mm wide; panicle-branches erect;

pedicels shorter than spikelets 4. humilis

1. B. media L. , Sp. Pl. 70 (1753).

Laxly caespitose perennial 15-100 cm. Stems erect. Leaves 2-7 mm wide, flat, scabridulous on the margin; sheaths smooth; ligule 0-5-1-5 mm. Panicle 4-18 cm, erect, much-branched, lax; lower branches (l-)2 together; pedicels mostly longer than spikelets, very slender. Spikelets 4-7(-12) mm, numerous, pendent, usually purplish; florets 4-12. Glumes 2-5-3-5 mm, concave, cuculiate, suborbicular, 3- to 5-veined, subcoriaceous. Lemma c. 4 mm, like the glumes, 7- to 9-veined. Palea somewhat shorter than lemma. 2« =14, 28. Grassland. Most of Europe, but only as a casual in the extreme north. All except Az BI Cr Fa Is Sb.

(a) Subsp. media :

Usually 15-60 cm. Leaves 2 -4 mm wide. Panicle-branches patent. Throughout the range of the species.

(b) Subsp. elatior (Sibth. & Sm.) Rohlena , Sitz.-Ber. Böhm. Ges. Wiss. 1912(1): 130 (1912)

( B. elatior Sibth. & Sm. ):

Usually 50-100 cm. Leaves 4-7 mm wide. Panicle-branches erect. S.E. Europe.

2. B. maxima L. , Sp. Pl. 70 (1753).

Annual 10-60 cm. Stems erect or geniculate below. Leaves 3-8 mm wide, flat, scabridulous on the margin; sheaths smooth; ligule 2-5 mm. Panicle 2-10 cm, secund, drooping at apex; branches usually solitary, each with 1-3 spikelets; pedicels very slender. Spikelets (10-) 14-25 mm, 1-12, pendent, glabrous or appressed-pubescent, often reddish-brown; florets 7-20. Glumes 5-7 mm, concave, suborbicular, 5- to 9-veined, subcoriaceous. Lemma 6-8 mm, like the glumes, 7- to 9-veined. Palea up to f as long as lemma. 2« =14. Open habitats. S. Europe; cultivated for ornament elsewhere and frequent as a casual and occasionally naturalized. Al Az BI Bu Co Cr Ga Gr Hs It Ju Lu Sa Si Tu [Br Rs (E)].

3. B. minor L. , Sp. Pl. 70 (1753).

Annual (5-)lO-60 cm. Stems erect. Leaves 3-10 mm wide, flat, scabridulous above and on margin; sheaths smooth; ligule 3-6 mm. Panicle 3-20 cm, erect, much-branched, lax; lower branches 1-2 together, patent; pedicels mostly longer than the spikelets, very slender. Spikelets 3-5 mm, numerous, usually pale green; florets 4-8. Glumes 2-3-5 mm, concave, cuculiate, suborbicular, 3- to 5-veined, subcoriaceous. Lemma 1-5-2 mm, like the glumes, but papillose on the back, 7- to 9-veined. Palea somewhat shorter than lemma. 2« =10. Open habitats. S. & W. Europe, northwards to S. England. Al Az BI *Br Co Cr Ga Gr Hs It Ju Lu Sa Si Tu [Be].

4. B. humilis Bieb. , Fl. Taur.-Cauc. 1: 66 (1808)

( B. spicata Sibth. & Sm. , non Burm. fit).

Like 3 but rarely more than 20 cm; leaves up to 1 mm wide; panicle-branches short, erect; pedicels mostly shorter than spikelets; glumes and lemma acute, smooth, not cuculiate. 2« =14. Rocky slopes and dry, open places. S.E. Europe. Al Bu Cr Gr Rs (K) Tu.