Carex sect. Leptocephalae

L. H. Bailey

Proc. Amer. Acad. Arts 22: 131. 1886.

Synonyms: Carex sect. Polytrichoideae (Tuckerman) Mackenzie
Treatment appears in FNA Volume 23.

Plants cespitose, short-rhizomatous. Culms brown at base. Leaves: basal sheaths not fibrous; sheath fronts membranous; blades V-shaped in cross-section when young, glabrous. Inflorescence 1 spike per culm; bracts absent; spike androgynous. Proximal pistillate scales less than 10 mm, apex obtuse to acute or short-awned. Perigynia appressed-ascending, weakly veined, substipitate, elliptic to narrowly oblong, rounded or flattened-trigonous in cross-section, base long tapering, apex rounded or truncate, orifice entire or emarginate, glabrous; beak absent. Stigmas 3. Achenes obtusely to sharply trigonous, smaller than bodies of perigynia; style deciduous.

Distribution

North America, West Indies

Discussion

Species 1.

Selected References

None.

Lower Taxa

"shortened" is not a number.

... more about "Carex sect. Leptocephalae"
trigonous +
smaller +
rounded;obtuse;acute or short-awned +
Theodore S. Cochrane +
L. H. Bailey +
tapering +
v--shaped +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
North America +  and West Indies +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
emarginate +  and entire +
with (1-)3-6(-30) bristles and/or scales +
substipitate +  and veined +
appressed-ascending +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Proc. Amer. Acad. Arts +
adventitious +
basal +  and proximal +
2-keeled +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Polytrichoideae +
Carex sect. Leptocephalae +
section +
plant +  and cespitose +