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.

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 +