Blysmopsis rufa

(Hudson) Oteng-Yeboah

Notes Roy. Bot. Gard. Edinburgh 33: 310. 1974.

Common names: Saltmarsh flat -sedge red clubrush blysmopsis roux scirpe roux
Illustrated
Basionym: Schoenus rufus Hudson Fl. Angl. ed. 2, 15. 1778
Synonyms: Blysmus rufus (Hudson) Link Scirpus rufus (Hudson) Schrader Scirpus rufus var. neogaeus Fernald
Treatment appears in FNA Volume 23. Treatment on page 199. Mentioned on page 196.

Plants loosely cespitose. Rhizomes horizontal, slender, 1–3 mm thick. Culms (5–) 10–45 cm × 1–2 (–3) mm, glabrous. Leaves 1–3; ligules 0.3 mm; blades distichous, thickly crescentiform in cross-section, 2–12 (–18) cm × 1.5–4 mm, conspicuous midrib absent, apex blunt, glabrous. Inflorescences in loose spikes, 5–8; spikelets distichous, spreadingascending, 1–2 cm; bracts erect to oblique, leaflike or scalelike, 4–15 mm. Spikelets linear-lanceoid to subterete, 3–6 (–10) × 3–4.5 mm; floral scales deciduous, 3, tristichous, reddish-brown, oblong-lanceolate, 3–5 × 2–3 mm, apex acute, glossy; prophylls linear, subtending flower. Flowers: perianth bristles separating from achene when mature, white, 0.5–1.2 mm, apex antrorsely roughened or barbed; anthers linear, 2.5–3 mm; connective apices barely 0.1 mm, obtuse, smooth; style as long as stigmas. Achenes yellowish-brown, narrowly ellipsoid, dorsiventrally compressed, 4–5 × 1–1.3 (–1.7) mm, base cuneate-stipelike, apex acute, beaked, smooth; embryo turbinate with lateral coleoptile and basal root cap (“Carex-type”). 2n = 40.


Phenology: Fruiting late summer.
Habitat: Coastal and inland salt or brackish marshes or freshwater peatlands
Elevation: 0–200 m

Distribution

V23 353-distribution-map.jpg

Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Yukon, Alaska, Europe, Asia

Discussion

Blysmopsis has been included in Scirpus or more recently treated within Blysmus. The current case for generic status was presented by J. J. Bruhl (1995). Blysmopsis differs from Blysmus in having thickly crescentiform leaf blades (not flat), terete or elliptic culms (not roundly trigonous), antrorsely (not retrorsely barbed) perianth bristles, and spongy, irregularly thickened fruit mesocarp layer (not regularly thickened). In the last feature, Blysmopsis is more like Cladium than its closer relatives Blysmus and Dulichium.

Selected References

None.

Lower Taxa

None.
... more about "Blysmopsis rufa"
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
yellowish-brown +  and white +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
compressed;ellipsoid +
1mm;1.3mm +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
beaked +  and barbed +
Jeremy J. Bruhl +  and Gordon C. Tucker +
(Hudson) Oteng-Yeboah +
shortened +
persistent +
cuneate-stipelike +
Schoenus rufus +
12 cm120 mm <br />0.12 m <br /> (18 cm180 mm <br />0.18 m <br />) +
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 m <br />) +
1.5mm;4mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
scale-like +, leaflike +  and oblique +
parallel +  and divergent +
terete +, rolled +  and plicate +
Saltmarsh flat -sedge +, red clubrush +, blysmopsis roux +  and scirpe roux +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
rounded-trigonous +  and terete +
1mm;2mm +
Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Europe +  and Asia +
0–200 m +
turbinate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
oblong-lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
hypogynous +  and subtending +
biconvex +  and trigonous +
Coastal and inland salt or brackish marshes or freshwater peatlands +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
0.3 cm3 mm <br />0.003 m <br /> (?) +
conspicuous +
with (1-)3-6(-30) bristles and/or scales +
Fruiting late summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Notes Roy. Bot. Gard. Edinburgh +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2 +  and 25 +
linear-lanceoid;subterete +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
3mm;4.5mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Blysmus rufus +, Scirpus rufus +  and Scirpus rufus var. neogaeus +
Blysmopsis rufa +
Blysmopsis +
species +
plant +  and cespitose +