Arrhenopterum heterostichum

Hedwig

Sp. Musc. Frond., 198, plate 46, figs. 1 – 9. 1801

Illustrated
Synonyms: Aulacomnium heterostichum (Hedwig) Bruch & Schimper
Treatment appears in FNA Volume 28. Treatment on page 96.
Plants in small mats, glossy distally when dry, scarcely altered when moist. Stems reddish brown or yellow, weakly complanate-foliate, densely branched, mostly from subfloral branches; rhizoids conspicuous along stem. Leaves with margins revolute on one side (or both) proximally; costa prominent, flexuose, ending before apex, sometimes with short lateral spurs, guide cells often in 2 rows near base, 1 row toward apex. Perigonia sessile; outer leaves short, narrowed to insertion, apex slightly flaring, inner leaves concave basally, scarcely longer than antheridia, margins entire, apex acute, basal laminal cells elongate, larger than distal cells, smooth. Perichaetial outer leaves symmetric, narrowed to insertion, inner leaves narrow, attenuate to long-attenuate. Seta 1–1.5 cm. Capsule 3.5–5 mm.

Habitat: Mineral or humid soil, slopes of ravines, bark at tree bases
Elevation: low elevations

Distribution

V28 148-distribution-map.gif

N.S., Ont., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., Asia (China, Japan, Korea, Russian Far East).

Discussion

The range of Arrhenopterum heterostichum in North America corresponds largely to the range of temperate deciduous or mixed deciduous-conifer forest, ranging westward into forested portions of the tallgrass prairie.

Selected References

None.

Lower Taxa

None.

AuthorNorton G. Miller† +
AuthorityHedwig +
DistributionN.S. +, Ont. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +, Asia (China +, Japan +, Korea + and Russian Far East). +
Elevationlow elevations +
HabitatMineral or humid soil, slopes of ravines, bark at tree bases +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorPatricia M. Eckel +
Publication titleSp. Musc. Frond., +
Publication year1801 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V28/V28 148.xml +
Special statusIllustrated +
SynonymsAulacomnium heterostichum +
Taxon familyAulacomniaceae +
Taxon nameArrhenopterum heterostichum +
Taxon parentArrhenopterum +
Taxon rankspecies +
VolumeVolume 28 +