76.
Sphagnum junghuhnianum
Dozy & Molkenboer, Verh. Kon. Akad. Wetensch., Afd. Natuurk. 2: 8. 1854.
Sphagnum junghuhnianum
subsp.
pseudomolle
(Warnstorf) H. Suzuki;
S. pseudomolle
Warnstorf
Plants
moderate-sized, soft, loosely tufted, slender, capitulum flat-topped 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
ovate-lanceolate, 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.
Shady, seepy cliffs; low elevations; B.C.; e Asia.
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).
