Part 6. JUNCACEAE 1: Rostkovia to Luzula - Species Plantarum ...

JUNCACEAE (Luzula)
papillose-serrulate margins; apex acute. Lower bract herbaceous, usually 2.5–5 cm long,
shorter than or almost equalling inflorescence. Inflorescence many-flowered, ±nodding, later
suberect, usually 5–7 × 4–5 cm; flowers borne singly or crowded in 2 (3–4)-flowered groups.
Bracteoles scarious, ovate, ciliate, c. 1.5 mm long. Tepals equal, glabrous, lanceolate,
acuminate, usually 2.4–2.8 mm long, deep to dark castaneous-brown; margins inconspicuous,
paler (straw-) brown. Stamens 6; anthers (1.0–) 1.1–1.4 (–1.7) mm long; filaments 0.3–0.5 mm
long; style c. 0.8–1.0 mm long; stigmas 1.0–1.5 mm long. Capsule oblong-ovoid, ±acute,
shortly mucronate, dark brown, shining, ±equalling, or slightly longer than perianth; capsule
segments (2.4–) 2.5–2.8 (–3.0) × c. 1.3–1.5 mm. Seeds ±ovoid, 1.1–1.3 mm long, c. 0.8 mm
wide, brown; appendage to 0.1 mm long, fibrillate. 2n=12 [AL], fide A.-M.Lambert &
J.Giesi, Inform. Annuelles Caryosyst. Cytogén. 1: 28 (1967).
SW Europe, disjunctly in the E Pyrenees, Massif Central, Vosges and S Schwarzwald.
Reported from Montes Cantábricos, N Spain, but material not seen [see P.Montserrat, Anales
Inst. Bot. Cavanilles 21(2): 459-461 (1964)]. 11: GER. 12: FRA, SPA. Subalpine stony
meadows, along streams, usually on non-calcareous substrates above 1200 m. Map 41.
11. GERMANY: Schwarzwald, Belchen, Jul 1858, H.A. de Bary (W). 12. FRANCE: Vosges, Hohneck,
I.S.Perrin [F.W.Schultz, Herb. Norm.] 1154 (PR); Puy-de-Dôme, Mont-Dore, Grande Cascade, 1200–1300 m,
17 & 22 Jun 1971, Rastetter (H, LD); Auvergne, Puy-Mary, 1200 m, 28 Jul 1909, J.J.Héribaud (PR, W);
Auvergne, Puy-Ferrand, 2 Sep 1852, E.Desvaux (H); Hautes Cévennes, S of Mt Mézenc, 1400 m,
N.Y.Sandwith 3897 (K); E Pyrenees, Vallée d'Eyne, c. 2100 m, E.Wängsjö & G.Wängsjö 3366 (LD); E.M.Sennen
[Pl. Esp.] 4055 (LD); E Pyrenees, L'Hospitalet, Ellman & N.Y.Sandwith 247 (K). SPAIN: E Pyrenees,
Nuria, 1850 m, E.M.Sennen [Pl. Esp.] 1809 (BC, W).
22. Luzula parviflora (Ehrh.) Desv., J. Bot. (Desvaux) 1: 144 (1808)
Juncus parviflorus Ehrh., Beitr. Naturk. 6: 139 (1791); Luzula spadicea var. parviflora (Ehrh.) E.Mey.,
Linnaea 22: 402 (1849); Juncoides spadicea var. parviflora (Ehrh.) Kuntze, Revis. Gen. Pl. 2: 724 (1891);
Juncoides parviflora (Ehrh.) Coville, Contr. U.S. Natl. Herb. 4: 209 (1893). T: [Sweden, Lappland],
C.Linnaeus; lecto: Flora Lapponica 124, Institut de France, Paris, designated here; photo BM, PRA.
Luzula parviflora var. densiflora Lange, Consp. Fl. Groenland. 125 (1880). T: [not indicated; numerous
syntypes from E and W Greenland].
Luzula parviflora var. sparsiflora Lange, Consp. Fl. Groenland. 125 (1880). T: [not indicated; numerous
syntypes from Greenland].
Map: E.Hultén & M.Fries, Atlas N. Eur. Vasc. Pl. 1: map 166 (1986).
Perennials 30–90 cm tall, loosely caespitose; rhizome ascending; stolons short, ascending,
less often absent. Basal leaves 10–20 cm long, usually 5–10 mm wide; cauline leaves (3–) 4–
5, 3–10 mm wide. All leaves with papillose-serrulate margins; apex acute. Lower bract
herbaceous or brownish membranous, usually 1.5–4.0 cm long, shorter than inflorescence.
Inflorescence usually lax, sometimes nodding, with some main branches to 13 cm long, often
arcuate; flowers borne singly. Bracteoles subglabrous to sparsely ciliate, ovate, membranous.
Tepals equal, glabrous, ±lanceolate, 1.8–2.3 (–2.5) mm long. Stamens 6; anthers 0.3–0.6 mm
long, as long as or shorter than filaments. Capsule smooth above. Seeds ±ellipsoid, brown to
dark brown, 1.0–1.4 mm long; base fibrillate.
A widely distributed northern circumpolar species, most common in subarctic areas and in the
mountains of N Europe, N Asia and temperate North America. Three subspecies are recognized.
1 Inflorescence many-flowered with long main branches and short most
distal secondary branches (peduncles); perianth segments medium brown 22a. subsp. parviflora
1: Inflorescence few-flowered, with long main branches and long distal
secondary branches (almost divaricate); perianth segments usually pale
brown to stramineous
2 Stem conspicuously reddish at base; cauline leaves mid-green, shining,
tepals with a distinct midrib 22b. subsp. fastigiata
2: Stem without reddish coloration or with indistinct reddish tinge at
base; cauline leaves bluish or greyish green, dull, tepals with an
indistinct midrib 22c. subsp. melanocarpa
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