Pseudotaxiphyllum elegans

(Bridel) Z. Iwatsuki

J. Hattori Bot. Lab. 63: 449. 1987

Illustrated
Basionyms: Isothecium elegans Bridel Bryol. Univ. 2: 356. 1827, P. elegans var. gracilens (Grout) H. A. Crum Steere & L. E. Anderson
Synonyms: H. borrerianum Müller Hal. Isopterygium elegans (Bridel) Lindberg Plagiothecium elegans (Bridel) Schimper P. elegans var. schimperi (Juratzka & Milde) Limpricht P. elegans var. terrestre (Lindberg) Rau & Hervey
Treatment appears in FNA Volume 28. Treatment on page 561. Mentioned on page 560, 578.
Plants in thin to dense mats, dark green to yellowish. Stems 3.5 cm, 1–2.5 mm wide, complanate-foliate. Leaves erect-spreading or sometimes secund with apices pointing toward substrate, not upturned-homomallous, close to somewhat distant, lanceolate, ovate- or oblong-lanceolate, symmetric, smooth or weakly undulate, 0.3–2 × 0.2–0.7 mm; margins plane, serrulate to entire proximally, serrulate to strongly serrate distally; apex acuminate; costa double, strong; alar cells undifferentiated or quadrate to rectangular, 1–3 on margins; medial laminal cells 48–100 × 4–7 µm; distal cells sometimes minutely prorulose at distal ends on abaxial surface. Specialized asexual reproduction present as propagula clustered in leaf axils below stem apices, 0.5–1.5 mm, yellow to green, not twisted-vermiform, resembling parent plant but smaller, bearing reduced leaves from apex to base of stems. Sexual condition dioicous. Seta 1–2.5 cm. Capsule cernuous to pendulous, oblong-ovoid to ovoid, 1–2 mm; operculum conic to short-rostrate. Spores 7–12 µm.

Phenology: Capsules mature spring–summer.
Habitat: Woods, acidic rock and soil, humus, base of trees, rotten logs
Elevation: low to high elevations (0-2000 m)

Distribution

V28 876-distribution-map.gif

B.C., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Yukon, Ala., Alaska, Ark., Calif., Conn., Del., Ga., Idaho, Ill., Ind., Ky., Maine, Md., Mich., Minn., Mo., N.H., N.J., N.Y., N.C., Ohio, Oreg., Pa., S.C., Tenn., Vt., Va., Wash., W.Va., s South America (Argentina).y

Discussion

Pseudotaxiphyllum elegans is morphologically similar to 2. P. distichaceum. For distinctions, see discussion of that species.

Selected References

None.

Lower Taxa

None.

AuthorRobert R. Ireland Jr. +
Authority(Bridel) Z. Iwatsuki +
BasionymsIsothecium elegans + and P. elegans var. gracilens +
DistributionB.C. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Yukon +, Ala. +, Alaska +, Ark. +, Calif. +, Conn. +, Del. +, Ga. +, Idaho +, Ill. +, Ind. +, Ky. +, Maine +, Md. +, Mich. +, Minn. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Oreg. +, Pa. +, S.C. +, Tenn. +, Vt. +, Va. +, Wash. +, W.Va. + and s South America (Argentina).y +
Elevationlow to high elevations (0-2000 m) +
HabitatWoods, acidic rock and soil, humus, base of trees, rotten logs +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorPatricia M. Eckel +
PhenologyCapsules mature spring–summer. +
Publication titleJ. Hattori Bot. Lab. +
Publication year1987 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V28/V28 876.xml +
Special statusIllustrated +
SynonymsH. borrerianum +, Isopterygium elegans +, Plagiothecium elegans +, P. elegans var. schimperi + and P. elegans var. terrestre +
Taxon familyHypnaceae +
Taxon namePseudotaxiphyllum elegans +
Taxon parentPseudotaxiphyllum +
Taxon rankspecies +
VolumeVolume 28 +