Pottiaceae subfam. Timmielloideae

R. H. Zander

Bull. Buffalo Soc. Nat. Sci. 32: 68. 1993,.

Treatment appears in FNA Volume 27. Treatment on page 481. Mentioned on page 477.
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Plants green to tan. Stem central strand present, sclerodermis strong, hyalodermis present. Leaves broadly to linearly lanceolate, apex acute, margins plane to weakly incurved; distal laminal cells 2-stratose medially, the cells staggered above each other near the costa but grading to vertically aligned towards the leaf margin, bulging adaxially, nearly smooth abaxially, walls KOH yellow; costa with differentiated abaxial epidermis; gemmae unknown. Peristome present.

Distribution

Widespread in temperate climates

Discussion

Genus 1.

Selected References

None.

Lower Taxa

elongate +  and quadrate +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +
R. H. Zander +
reniform +  and rounded +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
obovoid +
mitrate +  and cucullate +
cleistocarpous +  and stegocarpous +
monoicous +, dioicous +  and sexual +
flat to bulging +
vesiculose +  and thick-walled +
few +  and several +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
Widespread in temperate climates +
differentiated +
multicellular +
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 +
lanceolate +
reduced +
dentate +  and entire +
short-conic;short-rostrate +
photosynthetic +
compound +, simple +, hollow +  and solid +
flattened +  and 2-fid +
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 +
Bull. Buffalo Soc. Nat. Sci. +
straight +
elongate +
2 +  and 1 +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
rounded-triangular +  and rounded-pentagonal +
0.2 cm2 mm <br />0.002 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Pottiaceae subfam. Timmielloideae +
Pottiaceae +
subfamily +
ovoid;cylindric +
stemless +  and perigoniate +
occasionally smaller than the perichaetiate +