Sphagnum junghuhnianum

Dozy & Molkenboer

Verh. Kon. Akad. Wetensch., Afd. Natuurk. 2: 8. 1854,.

Synonyms: Sphagnum junghuhnianum subsp. pseudomolle (Warnstorf) H. Suzuki Sphagnum pseudomolle
Treatment appears in FNA Volume 27. Treatment on page 95. Mentioned on page 87.

Plants moderate-sized, soft, loosely tufted, slender, capitulum flattopped to rounded; pale, dirty green, yellowish to brownish; without metallic lustre when dry. Stems brown to reddish-brown; superficial cortical cells usually aporose, but some have a single round to elliptical pore in the distal portion of the cell free from the cell wall. Stem-leaves triangular-lingulate, 1.2–1.6 mm, broadly apex acute to narrowly truncate and toothed, border narrow or indistinct at base (less than 0.25 the width); hyaline cells rhomboid, mostly 0–1-septate; convex surface with membrane pleats, concave surface with 1–3 rounded membrane gaps occupying most of cell. Branches somewhat 5-ranked. Branch fascicles with 2 spreading and 1–2 pendent branches. Branch leaves ovatelanceolate, 1.3–2 mm, strongly concave, apex strongly involute; margins entire to somewhat toothed near apex, hyaline cells on convex surface with numerous ringed elliptic pores (6–10) along commissures, concave surface mostly aporose except near margins; Sexual condition dioicous or monoicous. Spores 21–23 µm; minutely papillose.


Habitat: Shady, seepy cliffs
Elevation: low elevations

Discussion

Sphagnum junghuhnianum in the flora area is known only from the Queen Charlotte Islands.

Sporophytes of Sphagnum junghuhnianum were not seen. Three other large, brown species of sect. Acutifolia have stem leaves without fimbriate to lacerate apices, S. subnitens (forms without red color), S. subfulvum, and S. flavicomans. Sphagnum flavicomans has a more pointed stem leaf and a darker brown color as well as a strongly different ecology and range. Both S. subnitens and S. subfulvum have a glossy sheen when dry that is lacking in S. junghuhnianum. Sexual condition and spore characters were taken from H. A. Crum (1984).

Selected References

None.

Lower Taxa

None.

"usually longer and thicker" is not a number."broad" is not a number.

... more about "Sphagnum junghuhnianum"
toothed;acute;narrowly truncate +
Cyrus B. McQueen† +  and Richard E. Andrus +
Dozy & Molkenboer +
fimbriate +
differentiated +
fascicles +  and 5-ranked +
ratio +, length +  and width +
concave +  and ovatelanceolate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
pendent +  and spreading +
1 +  and 2 +
more slender +
differentiated +
0-1-septate +
alternating +
strengthened +
nonornamented +
rhomboid +
larger +
fibrillose +
spherical +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
monoicous +, dioicous +  and sexual +
B.C. +  and e Asia +
low elevations +
monoicous +, dioicous +  and sexual +
conspicuous +
isophyllous +, hemiisophyllous +  and anisophyllous +
Shady, seepy cliffs +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
triangular-lingulate +
toothed +  and entire to somewhat +
conspicuous +
Round (?) +  and Elliptical (?) +
Verh. Kon. Akad. Wetensch., Afd. Natuurk. +
tetrahedral +
septate +, porose +  and efibrillose +
triangular;lingulate-spatulate +
brown;reddish-brown +
differentiated +
monoicous +, dioicous +  and sexual +
concave +  and convex +
Sphagnum junghuhnianum subsp. pseudomolle +  and Sphagnum pseudomolle +
Sphagnum junghuhnianum +
Sphagnum sect. Acutifolia +
species +
swollen +
red +, pink +, brown +  and green +
slender +  and medium-sized +