Juncaceae Phylogeny Group
Juncaceae Genera Key
1
Flowers solitary and 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, the lower one 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,
apex acute
but not hard nor prickly
4.
Patosia
5:
Flowers with 2 bracteoles, leaf blade with smooth margins, apex acute,
hard,
prickly 3.
Oxychloë
1:
Flowers in 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 glabrous, flowers with or without bracteoles, leaf sheath open, rarely closed 7. Juncus
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