Bryoerythrophyllum ferruginascens

(Stirton) Giacomini

Atti Ist. Bot. Lab. Crittog. Univ. Pavia, ser. 5, 4: 210. 1947,.

Basionym: Barbula ferruginascens Stirton Ann. Scott. Nat. Hist. 9(35): 176. 1900
Treatment appears in FNA Volume 27. Treatment on page 567. Mentioned on page 526, 530, 566, 568.

Stems to 2.5 (–3) cm. Stem-leaves ovate-triangular to short-lanceolate, mostly 1–1.8 mm, distal lamina 1-stratose, margins recurved in proximal half of leaf, plane distally, entire, acute to narrowly obtuse apically; costa percurrent, often ending in an apiculus, not much widened or tapering, usually 4 epidermal-cells wide at mid leaf, adaxial surface of the costa weakly convex or concave; proximal cells differentiated juxtacostally or across leaf, rectangular, 2: 1. Specialized asexual reproduction by small, multicellular, irregularly shaped brood bodies often borne on rhizoids. Sexual condition dioicous. [Capsule theca 2.2–2.5 mm, operculum 0.5–0.9 mm, peristome absent to rudimentary. Spores 12–15 µm.]


Phenology: Sporophytes unknown for the region of the flora.
Habitat: Limestone, dolomite, volcanic rock, thin soil over rock, old musk ox feces(!), cliffs, scree and fell fields, bluffs, seep
Elevation: low to high elevations (100-1100 m)

Distribution

V27 815-distribution-map.gif

Greenland, Alta., B.C., Alaska, Calif., N.Y., N.C., Va., Mexico, South America (Bolivia), Europe, Asia (nearly circumarctic), Asia (possibly Japan), Asia (New Guinea), Asia (Philippines), Africa (Ethiopia), Africa (Tanzania)

Discussion

Bryoerythrophyllum ferruginascens is rather variable in the length of the leaves. Reduced specimens are as commonly encountered as the more lush expression. As in B. recurvirostrum, unusually short leaves seem to retain their usual width, and these leaves then seem broad in proportion to their length and the recurved margin runs higher. Tubers, bright red or orange and of variable shape, are often but not always present among the rhizoids on the proximal portions of the stems, though asexual reproduction probably occurs just as often by the fragile stems, a common trait of arctic species. This essentially montane, Arctic species was recently discovered in the Appalachians (P. M. Eckel 1990). It can be quickly distinguished from Didymodon vinealis by the adaxial apical costal groove of that species, which usually is floored by elongate cells and appears as a rectangular light-colored window, and from B. recurvirostrum by the leaves smaller, base squarish and lacking inflated cells, distal laminal margins plane, and never with dentate apices (B. recurvirostrum may approach B. ferruginascens but usually in at least some leaves there will be at least a hint of lateral teeth at the apex). An intermediate (Colorado: Clear Creek County, Mt. Evans, Summit Lake, Hermann 24909, Aug. 10, 1972, DUKE) has leaves with broad apex, margins recurved nearly throughout and proximal cells fairly well differentiated, but is tentatively referred here by the abundant characteristic brood bodies and proximal cells rather papillose.

Selected References

None.

Lower Taxa

None.
elongate +  and quadrate +
concave +  and convex +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +
(Stirton) Giacomini +
crescent--shaped +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
Barbula ferruginascens +
multicellular +
irregularly--shaped +
multicellular +
irregularly--shaped +
cucullate +
stegocarpous +
polygamous +, monoicous +, dioicous +  and sexual +
flat +  and bulging +
vesiculose +  and thick-walled +
Few (?) +  and Several (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
tapering +
widened +
2-stratose +  and 1-stratose +
subquadrate;shortly rectangular +
Greenland +, Alta. +, B.C. +, Alaska +, Calif. +, N.Y. +, N.C. +, Va. +, Mexico +, South America (Bolivia) +, Europe +, Asia (nearly circumarctic) +, Asia (possibly Japan) +, Asia (New Guinea) +, Asia (Philippines) +, Africa (Ethiopia) +  and Africa (Tanzania) +
low to high elevations (100-1100 m) +
differentiated +
multicellular +
Limestone, dolomite, volcanic rock, thin soil over rock, old musk ox feces(!), cliffs, scree and fell fields, bluffs, seep +
yellow +  and orange-red or red +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
ovate-triangular;short-lanceolate +
usually broadly lanceolate +  and narrowly elliptical +
reduced +
dentate +  and entire +
acute +  and narrowly obtuse +
short-conic;short-rostrate +
photosynthetic +
hollow +  and solid +
4 +  and 6 +
lateral +  and terminal +
lateral +  and terminal +
of 32 teeth +  and rudimentary +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Sporophytes unknown for the region of the flora. +
1 (?) +  and 2 (?) +
dioicous +  and sexual +
across leaf +  and differentiated +
Atti Ist. Bot. Lab. Crittog. Univ. Pavia, ser. +
multicellular +
straight +
elongate +
2 +  and 1 +
orange-red +, red +, laminal +  and light-brown +
ovate +  and lanceolate +
0-3 cm +  and short +
rounded-triangular +  and rounded-pentagonal +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Barbula sect. Erythrophyllum +, Barbula subg. Erythrophyllum +  and Didymodon subg. Erythrophyllum +
Bryoerythrophyllum ferruginascens +
Bryoerythrophyllum +
species +
ellipsoidal;cylindric +
short to rather +
stemless +  and perigoniate +
plant +  and cespitose +
occasionally smaller than the perichaetiate +