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

22
SPECIES PLANTARUM — FLORA OF THE WORLD (2002)
9: Basal leaves 13–19 mm wide; capsules c. 2.5 mm including mucro;
abaxial leaf surface glabrous, with margins often subglabrous 5. L. canariensis
8: Inflorescence lax or ±dense, ±evenly branched, not subcontracted;
flower clusters 2–5 (–7)-flowered
10 Anthers bifurcate in distal 1/5– 1/3; bracteoles 2.0–2.5 mm long 7. L. pedemontana
10: Anthers not bifurcate; bracteoles 1.0–1.5 mm long 9. L. luzuloides
7: Flowers ±brown, castaneous-brown, brownish copper-coloured or
membranous with castaneous-brown midrib
11 Style 0.8–1.2 mm long; stigmas less than 1.5 mm long; tepals with
purplish or coppery colour/tinge
11: Style 1.6–2.2 mm long; stigmas longer than 2 mm; tepals without
9. L. luzuloides
purplish or coppery colour/tinge 10. L. sylvatica
2. Luzula seubertii Lowe, J. Bot. (Hooker) 8: 300 (1856)
Juncoides seubertii (Lowe) Kuntze, Revis. Gen. Pl. 2: 724 (1891). T: ‘In salebrosis rupestribus umbrosis
Maderae’. Madeira, Serra do Seixal, Cruzinhas, 23 Jul 1855, R.T.Lowe; lecto: K, designated here; isolecto: P;
other authentic specimens from type locality: K, LD.
Illustration: M.J.Cannon, in J.R.Press & M.J.Short, Fl. Madeira, plate 53, fig. 4 (1994).
Map: H.Meusel, E.Jäger & E.Weinert, Vergl. Chorol. Zentraleur. Fl. 1: 87 (1965).
Perennials, usually 40–80 cm tall, densely ciliate, loosely caespitose; rhizome creeping to
ascending, long, often with dark fibrous cover; stolons ascending. Basal leaves few, up to
35–40 cm long, usually (6–) 8–11 mm wide; sheaths brown. Cauline leaves 3–5; upper leaves
usually 5–8 cm long, 3–5 mm wide. All leaves with acuminate tip; margins ±smooth. Lower
bracts ±herbaceous, 2–7 cm long; apex long acuminate, much shorter than inflorescence.
Inflorescence decompound lax, with slightly drooping rich anthela to 15 cm long; branches
smooth; terminal parts of inflorescence branches anthelate; terminal flower groups loose
(1–4-flowered); peduncle visible and usually (0.5–) 1.5–5.0 (–8.0) mm long. Bracteoles
linear-lanceolate, long acuminate, carinate, membranous to pale straw-brown, sparsely long
ciliate, 3.5–5.5 mm long. Tepals linear-lanceolate, gradually tapering to long acuminate tip,
equal to subequal, usually (5.0–) 5.5–6.5 mm long, pale straw-brown with membranous
margins. Stamens 6; anthers 1.3–1.6 mm long; filaments c. 1.0 mm long; ovary 1.2–1.3 mm
long; style 1.0–1.3 mm long; stigmas 1.5–2.8 mm long. Capsule pale brown, ±shining, ovoid,
±acuminate; mucro c. 0.3–0.5 mm long; capsule segments 2.8–3.0 × 1.6–1.9 mm. Seeds
oblong-ovoid, dark brown, 1.3–1.4 mm long, 0.9–1.0 mm wide; appendage brownish,
0.1–0.2 mm long, fibrillate. 2n=12, fide N.Malheiros & A.Gardé, Agron. Lusit. 9: 76 (1947).
Endemic to mountains of Madeira. 21: MDR. Dry mountain grassland and shrubby slopes,
usually on rocky ground. Map 17.
21. MADEIRA: Serra do Seixal, Cruzinhas, 18 Jul 1850, R.T.Lowe (LD, K); Serra do Seixal, Cruzinhas,
30 May 1863, R.T.Lowe (BM, K); Mt Torrinhos, 29 Jun 1828, P.B.Webb (K); Boco de Boroaca, Pico dos
Arrieros, 1200–1500 m, G.Mandon [Pl. Mader.] 247 (BM, K, P, PR, W); Levada do M. Medonho, Aug 1892,
Murray (BM).
3. Luzula purpureosplendens Seub., Fl. Azor. 23 (1844)
Luzula elegans Guthnick [in C.F.F.Hochstetter] ex E.Mey., Linnaea 22: 392 (1849), nom. illeg.; Luzula
purpurea H.C.Watson, London J. Bot. 3: 608 (1844), nom. illeg. T: Azores, H.J.Guthnick [in
C.F.Hochstetter, Herb. Azor.] 126; lecto: K, designated here; isolecto: BM, P, W.
Luzula azorica H.C.Watson, London J. Bot. 2: 408 (1843), nom. inval. Authentic material: Azores, 1842,
H.C.Watson; K.
Illustration: M.A.Seubert, Fl. Azor., Plate iv, fig. 2. (1844).
Perennials, 25–45 (–60) cm tall, caespitose to loosely caespitose; rhizome ascending,
branched; stolons numerous, ascending, with bases covered with brown to purplish
castaneous-brown cataphylls. Basal leaves numerous, usually 15–22 cm long, 3–4.5 (–6) mm