Taxiphyllum taxirameum

(Mitten) M. Fleischer

Musc. Buitenzorg 4: 1435. 1923.

Basionym: Stereodon taxirameus Mitten J. Proc. Linn. Soc., Bot., suppl.: 105. 1859
Synonyms: Isopterygium geophilum (Austin) A. Jaeger I. taxirameum (Mitten) A. Jaeger Plagiothecium geophilum (Austin) Grout Rhynchostegium geophilum Austin Taxiphyllum geophilum (Austin) M. Fleischer
Treatment appears in FNA Volume 28. Treatment on page 568. Mentioned on page 567, 569.
Revision as of 06:53, 30 July 2020 by imported>Volume Importer
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Plants in thin to dense mats, dark green to yellowish. Stems 6 cm, 2–4 mm wide, complanate-foliate; rarely radiculose ventrally. Leaves widespreading to squarrose, usually distant, ovate or oblong-lanceolate, rarely narrowly ovate, symmetric or nearly so, flat or somewhat concave, 1–2 × 0.3–0.6 mm; margins very narrowly recurved almost to apex, sometimes plane, serrulate throughout; apex acuminate or abruptly narrowed to acute or rarely subobtuse, not twisted; costa double and short or ecostate; alar cells few, long to short-rectangular, rarely quadrate, 37–63 × 5–9 µm, in 1–3 rows, 1–5 cells in marginal row; laminal cells smooth or prorulose at distal ends on abaxial surface; medial cells 66–120 × 3–7 µm. Seta reddish, 0.7–1.2 cm. Capsule reddish, oblong-ovoid, arcuate, 1–1.5 mm; operculum 0.5–1 mm. Spores 11–13 µm.


Phenology: Capsules mature spring–summer.
Habitat: Shaded siliceous or calcareous soil and rock
Elevation: low to moderate elevations (40-1500 m)

Distribution

V28 888-distribution-map.gif

Ala., Ariz., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Miss., Mo., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Mexico, West Indies, Central America, South America, se Asia

Discussion

Taxiphyllum taxirameum is a polymorphic species common in the southeastern and south-central United States, particularly the Ozark Mountain region. Taxiphyllum taxirameum has often been confused with the more northern 3. T. deplanatum; for distinctions, see the discussion under that species. Taxiphyllum taxirameum is the most common species of Taxiphyllum in Latin America, and it is especially prevalent in parts of Mexico and the West Indies.

Selected References

None.

Lower Taxa

None.
... more about "Taxiphyllum taxirameum"
not twisted +
abruptly narrowed;acute or rarely subobtuse +
Robert R. Ireland Jr. +
(Mitten) M. Fleischer +
not decurrent +
Stereodon taxirameus +
erect;widespreading or squarrose +
oblong-ovate +, oblong-lanceolate +, ovatelanceolate +  and ovate +
cucullate +
straight +  and arcuate +
oblong-ovoid +
constricted +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
similar +  and pigmented +
quadrate;short-rectangular +
enlarged +
differentiated +
5um +  and 9um +
same length +  and shorter than +
rudimentary +
ecostate +  and short +
ecostate +  and obscure +
sterile +, dioicous +, sexual +  and asexual +
Ala. +, Ariz. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +, Mexico +, West Indies +, Central America +, South America +  and se Asia +
low to moderate elevations (40-1500 m) +
fused +  and free +
filamentous +
Shaded siliceous or calcareous soil and rock +
nearly +  and symmetric +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
widespreading +  and squarrose +
concave +, ovate +  and oblong-lanceolate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
dioicous +, autoicous +  and sexual +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
lanceolate;ovatelanceolate +
Capsules mature spring–summer. +
Musc. Buitenzorg +
papillose +  and smooth +
elongate +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
globose;ovoid +
complanate-foliate +
subjulaceous +  and julaceous +
falcate-secund +
straight +
erect +  and widespreading or squarrose +
oblong-ovate +, oblong-lanceolate +, ovatelanceolate +  and ovate +
6 cm60 mm <br />0.06 m <br /> (?) +
differentiated +
2mm;4mm +
Isopterygium geophilum +, I. taxirameum +, Plagiothecium geophilum +, Rhynchostegium geophilum +  and Taxiphyllum geophilum +
Taxiphyllum taxirameum +
Taxiphyllum +
species +
dark green +  and yellowish +
medium-sized;large +