Pottiaceae subfam. Pottioideae

Brotherus in H. G. A. Engler et al.

in H. G. A. Engler et al., Nat. Pflanzenfam. ed. 2, 10: 282. 1924,.

Treatment appears in FNA Volume 27. Treatment on page 585. Mentioned on page 477, 480, 527, 599, 632.

Plants green to tan. Stem central strand usually present, sclerodermis and hyalodermis commonly absent. Leaves usually ovate or broadly ligulate to spathulate, apex usually rounded or broadly acute, margins recurved basally, distal laminal cells if 2-stratose stacked directly over one another, walls smooth or papillose, KOH yellow or red, occasionally orange, occasionally yellow distally and red basally; costa with or without a differentiated abaxial epidermis; gemmae largely absent.

Discussion

Genera 21 (15 in the flora).

Selected References

None.

elongate +  and quadrate +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Acute (?) +  and Rounded (?) +
Richard H. Zander +
Brotherus in H. G. A. Engler et al. +
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 +
Worldwide +
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 +
spathulate +  and ovate +
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 +
in H. G. A. Engler et al., Nat. Pflanzenfam. ed. +
straight +
elongate +
2 +  and 1 +
rounded-triangular +  and rounded-pentagonal +
0.2 cm2 mm <br />0.002 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Pottiaceae subfam. Pottioideae +
Pottiaceae +
subfamily +
ovoid;cylindric +
yellow distally and red +, orange +, red +  and yellow +
stemless +  and perigoniate +
occasionally smaller than the perichaetiate +