Brotherella roellii

(Renauld & Cardot) M. Fleischer

Musc. Buitenzorg 4: 1245. 1923.

Endemic
Basionym: Rhaphidostegium roellii Renauld & Cardot Bot. Centralbl. 44: 423. 1890
Treatment appears in FNA Volume 28. Treatment on page 578. Mentioned on page 577, 579.

Plants small, reclining, pale yellow-green. Stems 0.5–5 cm, to 1 mm wide across main leafy shoot, somewhat complanate-foliate, little or irregularly branched, branches sometimes flagelliform; pseudoparaphyllia narrowly lanceolate. Leaves slightly secund to falcate, occasionally almost erect, ovatelanceolate, tapering to apex, 0.8–1.2 cm; margins toothed in acumen; alar cells 2 or 3, redbrown. Sexual condition autoicous. Seta redbrown, 0.5–1 cm. Capsule suberect, cylindric, symmetric to somewhat asymmetric; operculum rostrate.


Phenology: Capsules mature winter.
Habitat: Tree trunks and bases, organic soil, forest margins
Elevation: low to high elevations

Discussion

In the genus, plants of Brotherella roellii are those of smallest stature in North America. It is the only autoicous species, thus sporophytes are fairly common. When sterile, however, B. roellii commonly produces readily deciduous flagelliferous shoots or branches. The species appears to be extinct in Washington; no specimens have been collected there for more than 70 years. In British Columbia, most collections have been made in secondary forests or on forest edges.

Selected References

None.

Lower Taxa

None.
... more about "Brotherella roellii"
long-acuminate +
Wilfred B. Schofield† +
(Renauld & Cardot) M. Fleischer +
Rhaphidostegium roellii +
flagelliform +
cucullate +
cylindric +
symmetric to somewhat +
specialized +
3 +  and 2 +
autoicous +  and sexual +
inflated +  and elongate +
differentiated +
B.C. +  and Wash. +
low to high elevations +
Tree trunks and bases, organic soil, forest margins +
papillose +  and smooth +
sterile +, autoicous +, dioicous +  and sexual +
falcate-secund +
tapering;ovatelanceolate;falcate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
complanate-foliate +  and leafy +
serrate +  and serrulate +
small;large +
Capsules mature winter. +
Musc. Buitenzorg +
elongate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
falcate-secund +
widespreading +  and erect-spreading +
tapering;lanceolate;broadly ovate +
pinnate +  and irregularly branched +
redbrown +  and reddish green +
arching +, erect +, sometimes +  and reclining +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 5 cm50 mm <br />0.05 m <br /> (?) +
0mm;1mm +
Brotherella roellii +
Brotherella +
species +
pale yellow-green +