Seligeria diversifolia

Lindberg

Öfvers. Kongl. Vetensk.-Akad. Förh. 18: 281. 1861,.

Treatment appears in FNA Volume 27. Treatment on page 323. Mentioned on page 321, 324.

Plants tiny, olive green. Leaves ovate-oblong to broadly ligulate, gradually narrowed, obtuse, costa ending before apex, margins entire; leaf cells (1–) 2: 1; perichaetial leaves sharply contracted to stout, short subula from clasping base, strongly differentiated. Seta 2–2.5 mm, twisted, curved when moist, ± straight when dry, slender. Capsule ovate-oblong to oblong, longer than broad, not widest at mouth; peristome of 16 well-developed teeth; columella immersed. Spores 9–11 µm.


Habitat: Stones, cliff faces

Discussion

Seligeria diversifolia occurs on stones in arctic Alaska, then south along the western mountains into the Yukon, and is found on cliff faces from a few stations in eastern North America. It is slender and stiff with differentiated perichaetial leaves, and a straight to slightly curved seta when moist, while the similar S. campylopoda has curved-twisted leaves, no differentiated perichaetial leaves, and a markedly curved seta when moist.

Selected References

None.

Lower Taxa

None.

"not widest" is not a number.

... more about "Seligeria diversifolia"
Dale H. Vitt +
Lindberg +
cucullate +
longer than broad +
ovate-oblong +  and oblong +
autoicous +  and sexual +
enlarged +
not differentiated +
N.B. +, Que. +, Yukon +, Alaska +, Europe +  and Asia +
Stones, cliff faces +
2 (?) +  and 1 (?) +
generally erect-spreading;spreading-recurved +
obtuse;narrowed;ovate-oblong +
entire +  and denticulate +
sharply contracted +  and stout +
Öfvers. Kongl. Vetensk.-Akad. Förh. +
calcareous +
straight +  and curved +
cygneous +
slender +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
differentiated +
Seligeria diversifolia +
Seligeria +
species +
well-developed +
triangular +
unbranched;rarely 2-3-branched +