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

More documents

Recommendations

Info

2 SPECIES PLANTARUM — FLORA OF THE WORLD (2002) 1 Flowers solitary; anthers mucronate (if anthers not mucronate then outer tepals at least 15 mm long); auricles never lacerate 2 Plants not cushion-forming; upper part of stem leafless; flower terminal 3 Flower bracts 2; lower bract herbaceous, conspicuously longer than perianth; upper bract ±equalling perianth; capsule suborbicular to obovoid, obtuse, to c. 5 mm long; seeds without conspicuous appendages 1. Rostkovia 3: Flower bracts 1 or 2, membranous, much shorter than perianth; capsule oblong to ellipsoidal, trigonous, acuminate, at least 7 mm long; seeds with two distinct appendages 2. Marsippospermum 2: Plants cushion-forming; upper part of stem densely covered with leaves; flower lateral (subterminal, axillary) 4 Leaves regularly distichous; gynophore developed, elongating during capsule ripening 5. Distichia 4: Leaves ±spirally arranged; gynophore absent 5 Flower with 1 bracteole; leaf blade with margins finely denticulate, with apex acute but not hard nor prickly 4. Patosia 5: Flowers with 2 bracteoles; leaf blade with smooth margins, with apex acute, hard, prickly 3. Oxychloë 1: Flowers in multi-flowered inflorescences; anthers not mucronate (if flowers occasionally solitary then tepals shorter than 10 mm); if anthers minutely mucronate then auricles lacerate 6 Capsule 3-seeded; leaves densely to very sparsely ciliate; flowers always with basal bracteoles; leaf sheath closed, rarely partially dissected 6. Luzula 6: Capsule many-seeded; leaves not hairy; flowers with or without bracteoles; leaf sheath open, rarely closed 7. Juncus 1. ROSTKOVIA Rostkovia Desv., J. Bot. (Desvaux) 1: 324 (1809) Type: Rostkovia magellanica (Lam.) Hook.f. Perennial herbs, erect, glabrous. Stems leafless. Leaves all basal, spirally arranged, linear or with reduced blade; stomata restricted to 2 narrow bands of lighter color, one on each side of the midrib. Flower bracts 2, with the longer one erect to suberect, much exceeding the flower, and the other ±equalling tepals. Flower terminal (pseudolateral), single, large, hermaphrodite. Tepals castaneous-brown to dark brown; margins membranous, distally involute. Stamens 6; anthers linear; connective with apical mucro to 0.5 mm. Ovary sessile. Style with 3 tapering twining stigmas. Capsule subglobose, unilocular or slightly triseptate, sessile. Seeds many, ±ovoid; appendage absent; base with a paler patch or apiculate; seedcoat with fine longitudinal pattern, with cells narrow elongated and pointed. Two species, one endemic to Tristan da Cunha, the other distributed in New Zealand, the Sub-Antarctic Islands, the southernmost part of South America to Patagonia, and disjunctly in Ecuador. Leaves up to 1 mm wide, straight, stiff, acute; style 2.5–4.0 mm 1. R. magellanica Leaves usually 1.2–1.7 mm wide, arcuate to circinnate, subacute-subobtuse; style 1.5–2.0 mm 2. R. tristanensis
JUNCACEAE Figure 1. Distichia muscoides. A, habit; B, fruiting shoot showing the capsule lifted on gynophore; C, staminate flowering shoot (A, L.Holm-Nielsen et al. 6732, AAU; B, B.Øllgaard & H.Balslev 8435, AAU; C, Jameson s.n., K). Rostkovia magellanica. D, habit; E, flower; F, fruit. (A-C, B.Øllgaard & H.Balslev 9772, AAU). Scale bars: A, D = 5 cm; B, C, E, F = 2 mm. Drawn by K. Tind. Originally published in G.Harling & B.Sparre (eds.), Fl. Ecuador 11: 6, fig. 1 (1979), reproduced with permission, from H.Balslev, Fl. Neotrop. Monogr. 68: 40, fig. 20 (1996), © 1996, The New York Botanical Garden. 3
Page 1 and 2: AUSTRALIAN BIOLOGICAL RESOURCES STU
Page 3 and 4: CONTENTS Contributors iv Species Pl
Page 5 and 6: Species Plantarum Steering Committe
Page 7: PREFACE This volume is the first of
Page 12 and 13: 4 SPECIES PLANTARUM — FLORA OF TH
Page 18 and 19: 10 SPECIES PLANTARUM — FLORA OF T
Page 60 and 61:
52 SPECIES PLANTARUM — FLORA OF T
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
100 SPECIES PLANTARUM — FLORA OF
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130:
show all

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

Create successful ePaper yourself

Delete template?

Save as template?