Barbula convoluta var. gallinula
Phytologia 44: 195, figs. 15–19. 1979,.
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)
Distribution
B.C., N.W.T., Alaska.
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.
... more about "Barbula convoluta var. gallinula"
present +
differentiated +
differentiated +
absent +
grooved +
concave +
revoluble +
deciduous +
strong +
differentiated +
short;elongate +
strong +
absent +
semilunar +
differentiated +
differentiated +
usually slightly wider +
trabeculate +
absent +
sheathing +
elliptic +
oblong +
differentiated +
widened +
obovoid +
papillose +
cucullate +
stegocarpous +
specialized +
bulging +
flat to bulging +
thickened +
thin;evenly thickened +
vesiculose +
hyaline +
absent +
absent +
excurrent +
higher +
reaching +
rectangular +
firm-walled +
stacked +
specialized +
papillose +
8um;10um +
1-stratose +
quadrate;quadrate +
spiculose +
filiform +
differentiated +
multicellular +
absent +
common +
asexual +
large +
absent +
rare +
absent +
absent +
sheathing +
ovate +
differentiated +
1-stratose +
singly +
contorted +
appressed +
spreading +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
long-ligulate +
catenulate +
contorted +
fragile +
firm +
bordered +
recurved +
plane +
involute +
dense +
buried +
sharp +
absent +
long-conic +
photosynthetic +
solid +
scattered +
absent +
2-fid +
sheathing +
convolute +
usually larger +
absent +
twisted +
absent +
triangular +
filamentous +
archegoniate +
decurrent +
Phytologia +
narrow +
straight +
oblique +
1;3 +
absent +
twisted +
elongate +
free +
larger +
absent +
branching +
sheathing +
absent +
Barbula convoluta var. gallinula +
Barbula convoluta +
variety +
ovate;long-cylindric +
redbrown +
asexual +
spheric;elliptic +
large +
specialized +
asexual +
yellowish-brown;reddish-brown +
occasionally smaller than the perichaetiate +