Barbula bolleana

(Müller Hal.) Brotherus in H. G. A. Engler et al.

in H. G. A. Engler et al., Nat. Pflanzenfam. ed. 2, 10: 280. 1924,.

Basionyms: Meesia bolleana Müller Hal. Bot. Zeitung (Berlin) 20: 338. 1862
Synonyms: Barbula ehrenbergii (Lorentz) M. Fleischer
Treatment appears in FNA Volume 27. Treatment on page 534. Mentioned on page 529, 533, 560.

Stems to 3.5 cm. Leaves lax when wet, short-ligulate to long-elliptic, 2–2.7 mm, base scarcely differentiated to ovate, not sheathing, margins plane or weakly recurved in proximal 1/2 to 3/4, apex narrowly to broadly obtuse, occasionally broadly acute, entire or weakly apiculate; costa percurrent to ending 2–3 cells before the apex, abaxial costal surface smooth, hydroids absent; distal laminal cells lax-walled, shortrectangular, 11–15 µm wide, 1–2: 1, smooth or with low, simple papillae. Specialized asexual reproduction by fusiform or armed gemmae borne on stalks in leaf-axils, to 185 µm. Sporophytes absent in the flora area.


Habitat: Wet limestone, moist areas, wet rocks
Elevation: moderate elevations

Distribution

V27 769-distribution-map.gif

Ariz., Ark., Mo., N.Mex., Okla., Tex., Utah, Mexico, West Indies, Eurasia, n Africa, Australia

Discussion

The name Barbula bolleana replaces the long familiar B. ehrenbergii (J.-P. Frahm et al. 1996). The lax, largely smooth distal leaf cells, easily seen with the dissecting microscope, distinguish this hygrophilic species. Specimens with largely quadrate distal laminal cells may appear to have a weak intramarginal border along the leaf base of somewhat elongate cells. This species may be confused with Didymodon tophaceus, which generally has smaller leaf cells (9–12 µm wide) in fewer longitudinal rows (10–15 for D. tophaceus, 20–30 for B. bolleana), and often has long-decurrent leaf margins. Barbula indica is rarely also tufa forming. A specimen (Patterson 2185, NY) previously reported for Virginia (Frederick County) is Didymodon tophaceus.

Selected References

None.

Lower Taxa

None.

... more about "Barbula bolleana"
quadrate +  and elongate +
differentiated +
long-excurrent +  and short-excurrent +
apiculate +  and entire +
Acute (?) +  and Obtuse (?) +
Richard H. Zander +
(Müller Hal.) Brotherus in H. G. A. Engler et al. +
short;elongate +
semilunar +
papillose +  and smooth +
usually slightly wider +
differentiated +
broadened +
Meesia bolleana +
obovoid +
cucullate +
stegocarpous +
dioicous +  and sexual +
flat to bulging +
thin;evenly thickened +
2 (?) +  and 3 (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
rectangular +
quadrate;quadrate +
Ariz. +, Ark. +, Mo. +, N.Mex. +, Okla. +, Tex. +, Utah +, Mexico +, West Indies +, Eurasia +, n Africa +  and Australia +
moderate elevations +
differentiated +
Wet limestone, moist areas, wet rocks +
yellow +  and orange-red or red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
short-ligulate +
usually broadly lanceolate +  and narrowly elliptical +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
dentate +  and entire +
long-conic +
photosynthetic +
2 +  and 3 +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
in H. G. A. Engler et al., Nat. Pflanzenfam. ed. +
straight +
elongate +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
2 +  and 1 +
yellowish orange +, yellow +  and laminal +
rounded-triangular +  and rounded-pentagonal +
short +  and elongate +
0 cm0 mm <br />0 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Barbula ehrenbergii +
Barbula bolleana +
species +
ovate;long-cylindric +
red +  and yellow +
thin +  and evenly thickened +
stemless +  and perigoniate +
yellowish-brown;reddish-brown +
plant +, forming cushions +  and cespitose +
occasionally smaller than the perichaetiate +