Eleocharis (sect. Eleocharis) ser. Albidae

S. González & P. M. Peterson

Taxon 46: 440. 1997.

Treatment appears in FNA Volume 23.

Plants perennial, never stoloniferous or proliferating from spikelets. Rhizomes creeping 1–1.5 mm thick. Culms terete 0.3–1 mm wide. Leaves: distal leaf-sheaths persistent, firmly membranous to papery, apex acute to acuminate or sometimes blunt, tooth absent. Spikelets terete; basal spikelets absent. Floral scales cartilaginous to papery, rarely membranous. Styles 3-fid. Achenes pale-brown to blackish, trigonous, smooth at 30X. Tubercles distinct from achene apex in color, texture, and form.

Distribution

United States, Mexico, Bermuda, Central America

Discussion

Species 2 (1 in the flora).

Selected References

None.

Lower Taxa

pale-brown +  and blackish +
smooth +  and markedly sculptured +
trigonous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
S. Galen Smith* +, Jeremy J. Bruhl* +, M. Socorro González-Elizondo* +  and Francis J. Menapace* +
S. González & P. M. Peterson +
flattened +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
shortened +
persistent +
enlarged +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
0 cm0 mm <br />0 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.3mm;1mm +
United States +, Mexico +, Bermuda +  and Central America +
membranous +, cartilaginous +  and papery +
hypogynous +  and subtending +
biconvex +  and trigonous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
flattened +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
stramineous;medium brown or red brown or blackish brown +
ascending +  and horizontal +
caudex-like +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Eleocharis +
Eleocharis (sect. Eleocharis) ser. Albidae +
Eleocharis sect. Eleocharis +