Bolboschoenus maritimus subsp. maritimus

Illustrated
Synonyms: Scirpus fernaldii E. P. Bicknell Scirpus maritimus var. fernaldii (E. P. Bicknell) Beetle
Treatment appears in FNA Volume 23. Treatment on page 41. Mentioned on page 40.
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Scales dark to medium brown. Styles all or mostly 3-fid. Achenes dark to medium brown, obtusely compressed trigonous with broadly rounded abaxial angle or some biconvex in same spikelet.


Phenology: Fruiting summer.
Habitat: Brackish to saline coastal shores and marshes
Elevation: 0 m

Distribution

V23 56-distribution-map.jpg

N.B., P.E.I., Que., Maine, Europe, s Africa

Discussion

It is possible that the plants here placed in Bolboschoenus maritimus subsp. maritimus were introduced from Europe or were produced in North America by introgression from B. robustus or B. novae-angliae. Some specimens from the northern Atlantic coast are intermediate between B. maritimus subsp. maritimus and subsp. paludosus in having many bifid styles and only a few trigonous achenes. Collections from an abandoned oil-well site in southern Ontario (Lambton County) probably represent introductions from Europe. They have very slender leaves and culms, trifid styles, and narrowly cylindric spikelets. Although these specimens resemble some plants of B. maritimus in the broad sense from southern Europe, as well as B. glaucus × B. maritimus hybrids, they cannot be definitely identified because they lack achenes.

Selected References

None.

Lower Taxa

None.
dark +  and medium brown +
persistent +
much less than water +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
trigonous;compressed +
1.9mm;2.8mm +
orange;yellow +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
triangular +
S. Galen Smith +
(Linnaeus) Palla in W. D. J. Koch et al. +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
slender +
shortened +
persistent +
usually cuneate +  and rounded +
Scirpus maritimus +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
trigonous +, keeled +, v--shaped +  and flat +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
enlarged +
3 times deeper than wide +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
trigonous +
3mm;8mm +
N.B. +, P.E.I. +, Que. +, Maine +, Europe +  and s Africa +
2 times as thick as mesocarp +
hypogynous +  and subtending +
membranous +
biconvex +  and trigonous +
Brackish to saline coastal shores and marshes +
not /2 +  and not 1 +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
cauline +  and basal +
curved +  and straight +
slightly longer +
with (1-)3-6(-30) bristles and/or scales +
shorter to slightly +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
in W. D. J. Koch et al., Syn. Deut. Schweiz. Fl. ed. +
1 +  and 4 +
adventitious +
dark +  and medium brown +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
basal +  and proximal +
glabrescent;puberulent +
2-keeled +
membranous +
3mm;4mm +
Illustrated +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2 +  and 40 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Scirpus fernaldii +  and Scirpus maritimus var. fernaldii +
Bolboschoenus maritimus subsp. maritimus +
Bolboschoenus maritimus +
subspecies +
notched +
herb +, not +  and cespitose +
2mm +  and 12mm +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +