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Acuminata: Answers
to key questions in Rushes, Bulrushes & Pondweeds plus the remaining
Monocots of Saskatchewan by V. L. Harms, A. L. Leighton, and M. A. Vetter
leading to this species. The answers are in the order you would
normally work through the key.
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Flowers
solitary and terminal at the ends of the branches of the inflorescence;
stolons, if present, to 50 - 60 mm long. NOT [Flowers few to many
in glomerules; stolons absent.] |
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Plants 10
- 40 cm high; leaf blade apices obtuse, reddish, +/- swollen and
callose; inflorescences 15 - 50 (60) mm long, umbellate to corymbose, of
branches 8 - 40 mm long with a single terminal flower, rarely with a
secondary single-flowered branch arising from near the base of a
terminal flower of a primary branch; 5-22-flowered; primary bracts 10 -
20 (35) mm long; tepals (2.7) 3 - 3.6 (4.5) mm long; filaments 0.3 - 0.7
(1.2) mm long; anthers (0.5) 0.8 - 1.5 mm long, 1.5 - 3 times longer
than filaments; styles 0.7 - 1.5 mm long, stigmas 1.4 - 2.6 mm long;
capsules 3.2 - 5 mm long, stramineous to dark brown; seeds globose to
subglobose, 2 - 3.5 mm long including 1 - 1.7 (2.1) mm curved yellowish
to whitish caruncle at one end and 0.1 mm apiculum at other end.
NOT [Plants (20) 30 - 70 (90) cm high; leaf blade apices acute to
acuminate, sometimes dark, not callose; inflorescences 80 - 150 (200) mm
long, anthelate to paniculate, of branches 10 - 100 (130) mm long with a
single terminal flower, usually with 1 or more secondary single-flowered
branches arising from near the base of a terminal flower of a primary
branch; 30 - 70-flowered; primary bracts (15) 20-60 (80) mm long; tepals
1.8 - 2.3 (2.5) mm long; filaments ca. 0.5 mm long; anthers 0.4 - 0.6 mm
long, +/- equal to filaments; styles ca. 0.5 mm long, stigmas 0.8
- 1.3 mm long; capsules 2 - 2.5 (2.6) mm long, reddish brown to dark
brown; seeds ellipsoidal, 1.1 - 1.5 mm long including 0.1 - 0.2 mm long
apicula, caruncles absent.]
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Luzula: Answers
to key questions in Rushes, Bulrushes & Pondweeds plus the remaining
Monocots of Saskatchewan by V. L. Harms, A. L. Leighton, and M. A. Vetter
leading to this genus.
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Leaves +/-
flat and grass-like, sparsely to densely ciliate; sheaths closed (or
sometimes partially splitting later), auricles absent; flowers with 1 -
2 floral bracteoles immediately below the tepals; capsules 1-locular,
placentation basal; seeds 3. NOT [Leaves various, glabrous;
sheaths open, often with margins projected as auricles; flowers with or
without a pair of floral bracteoles immediately below the tepals;
capsules 1- or 3-locular (or pseudo- or incompletely-3-locular),
placentation axile or parietal; seeds many.] |
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