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Details for: Luzula rufescens

Search restricted to Kirschner, J. et al. 2002, Species Plantarum: Flora of the World Part 6-8.   Check for other Sources using this name

Source: Kirschner, J. et al. 2002, Species Plantarum: Flora of the World Part 6-8. [IOPI preferred view]
Name: Luzula rufescens Fisch. ex E.Mey.
Nomencl. ref. Linnaea vol. 22, 385. 1849.
Rank: Species
Status: ACCEPTED
Taxonomy (this taxon is included in): Familia - Juncaceae
    Genus - Luzula DC.
        Subgenus - Luzula subgen. Pterodes (Griseb.) Buchenau
            
Included taxa: Luzula rufescens Fisch. ex E.Mey. var. rufescens
Luzula rufescens var. macrocarpa Buchenau
Synonym(s): Juncoides rufescens (Fisch. ex E.Mey.) Kuntze
Luzula pilosa var. rufescens (Fisch. ex E.Mey.) Boivin
 
Description: Perennials, 7–41 cm tall, glabrous; stoloniferous to caespitose, occasionally with stolons to 6 cm long. Stem with numerous basal and 2–3 cauline flat leaves; basal leaves 1.5–19 cm Χ 1.5–4 mm (extremely rarely up to 6 mm); cauline leaves 1.5–6 (–11) cm Χ 1–2.5 mm, sparsely pubescent to subglabrous at margins, without a mucronate projection on callose tip. Inflorescence terminal, mostly simple, sometimes with 1–3 secondary pedicels present; secondary/primary pedicels ratio 0–0.5; primary pedicels 5–10, spreading to slightly nodding; flowers borne singly on primary or sometimes also on secondary pedicels. Basal bract to 1.8 cm long, shorter than inflorescence. Bracteoles 1.3–1.5 mm long. Tepals equal, 2.0–3.5 mm long, lanceolate, acute, entire, light to dark brown with hyaline margins. Stamens 6; anthers 0.6–1.2 mm long, longer than filaments; anther/filament ratio 1.0–4.0; style 0.3–0.7 mm long; stigmas 1.3–1.6 mm long, ±persistent. Capsule ovoid, acute to subtruncate or mucronate, equalling to exceeding tepals, stramineous to light brown. Seeds ellipsoid, 1.1–1.5 Χ 0.9–1.1 mm long, with apical appendages 0.4–1.5 mm long; seed/appendage ratio 0.8–3.0.
Description Table:
Basal leaves 1.5–3 mm wide; tepals 2.0–2.9 mm long; capsule 2.2–3.1 mm long; plants mostly 8–23 cm tall; inflorescence simple or occasionally with 1–2 secondary pedicels; seed/appendage ratio usually 1.3–2.4

115a. var. rufescens
Basal leaves up to 4(–6) mm wide; tepals 2.2–3.5 mm long; capsule 2.4–3.8 mm long; plants up to 41 cm tall; inflorescence often with 1–3 secondary pedicels; seed/appendage ratio usually 0.8–1.6

115b. var. macrocarpa
Geography: Asia, from E Siberia, northernmost China, Korea and Russian Far East; Alaska and W Yukon in North America. Records from Japan are erroneous. Two varieties are distinguished, one of which occupies a limited range near the centre of the Asian range of the species. Intermediates between the varieties are occasionally found.
Note in illustration: Maps: J.E.Ebinger, Mem. New York Bot. Gard. 10(5): 297, fig. 9 (1964); E.Hultιn & M.Fries, Atlas N. Eur. Vasc. Pl. 1: map 163 (1986); N.K.Kovtonyuk, in L.I.Malyshev & G.A.Peshkova, Fl. Sibiri 4 (Araceae – Orchidaceae): map 40 (1987) [Siberia].
SourceHigherTaxon from IOPI: Juncaceae
Taxon number in Juncaceae SP treatment : 115.
Type:T: [Russia, Siberia] In herbosis prope Ircutiam [Irkutsk], 1830, P.K.Turczaninow; lecto: LE, fide Z.Kaplan, Preslia 73: 70 (2001); photo: PRA, S; isolecto: LE.

  © 1996-2007 The International Organization for Plant Information.
This page last updated: Dienstag, 21. August 2007
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