Barbula convoluta var. gallinula

R. H. Zander

Phytologia 44: 195, figs. 15–19. 1979,.

Treatment appears in FNA Volume 27. Treatment on page 532. Mentioned on page 530, 531.

Specialized asexual reproduction as very large, oval gemmae in axils of distal leaves. Sporophytes absent in range of flora.


Habitat: Rock, usually limestone, or soil or humus
Elevation: low to moderate elevations (50-400 m)

Discussion

The massive, dark gemmae of var. gallinula, occuring usually one per leaf axil, are easily visible under the dissecting microscope and rival the leaves in size. Although the leaf apices of var. gallinula are ovate and somewhat cucullate, lacking an apiculus, certain undoubted var. convoluta specimens match them; thus the axillary gemmae are needed for sure identification. This taxon is apparently fairly abundant at Virginia Falls on the South Nahanni River, Northwest Territories.

Selected References

None.

Lower Taxa

None.
quadrate +  and elongate +
differentiated +
long-excurrent +  and short-excurrent +
apiculate +  and entire +
Richard H. Zander +
R. H. Zander +
short;elongate +
semilunar +
papillose +  and smooth +
usually slightly wider +
differentiated +
widened +
Pottiaceae tribe Barbuleae +
obovoid +
cucullate +
stegocarpous +
dioicous +  and sexual +
flat to bulging +
thin;evenly thickened +
1 (?) +  and 6 (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
rectangular +
quadrate;quadrate +
B.C. +, N.W.T. +  and Alaska. +
low to moderate elevations (50-400 m) +
differentiated +
multicellular +
Rock, usually limestone, or soil or humus +
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 +
long-ligulate +
ovate +  and lanceolate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
dentate +  and entire +
long-conic +
photosynthetic +
2 +  and 3 +
obtuse +  and broadly acute +
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 +
archegoniate +
straight +
elongate +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
2 +  and 1 +
yellowish orange +, yellow +  and laminal +
rounded-triangular +  and rounded-pentagonal +
short +  and elongate +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Barbula convoluta var. gallinula +
Barbula convoluta +
variety +
ovate;long-cylindric +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
spheric;elliptic +
red +  and yellow +
thin +  and evenly thickened +
short-stemmed +  and antheridiate +
yellowish-brown;reddish-brown +
occasionally smaller than the perichaetiate +