Philonotis fontana var. americana

(Dismier) Flowers ex H. A. Crum

Bryologist 72: 244. 1969.

Endemic
Basionym: Philonotis americana Mém. Soc. Bot. France 17: 35. 1910
Treatment appears in FNA Volume 28. Treatment on page 112.

Plants large. Stems 5–16 cm. Leaves with distalmost spiraled around stem, catenulate, spreading, distant, broadly ovatelanceolate, sometimes falcate, pluriplicate. Capsule 2.5–3.5 mm.


Phenology: Capsules mature Jun–Sep.
Habitat: Seeps, exposed slopes, mountain meadows
Elevation: low to high elevations (0-3000 m)

Distribution

V28 178-distribution-map.gif

Alta., B.C., N.B., Ont., Que., Alaska, Calif., Colo., Idaho, N.Y., Oreg., Utah, Wash.

Discussion

Variety americana, which includes the largest plants of the genus in North America, can be recognized by its robust habit, distant, catenulate leaves, and distalmost leaves spiraled around the stem.

Selected References

None.

Lower Taxa

None.
obtuse +, acute +  and acuminate +
Dana G. Griffin III +
(Dismier) Flowers ex H. A. Crum +
rectangular;oblong-hexagonal +
5um +  and 8um +
enlarged +
Philonotis americana +
cucullate +
inclined +, horizontal +  and erect +
globose +  and ovoid +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
appendiculate +
rudimentary +
long-excurrent +
subpercurrent +
with centric papilla +  and smooth +
dioicous +, sexual +  and asexual +
subquadrate;oblong or linear +
Alta. +, B.C. +, N.B. +, Ont. +, Que. +, Alaska +, Calif. +, Colo. +, Idaho +, N.Y. +, Oreg. +, Utah +  and Wash. +
low to high elevations (0-3000 m) +
yellowish;pale-brown +
dark red;reddish-brown +
Seeps, exposed slopes, mountain meadows +
smooth +, papillose +  and mammillose +
distant +  and catenulate +
falcate +  and ovatelanceolate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
blunt +  and mammillate or bluntly apiculate +
clavate +  and filiform +
discoid +  and gemmiform +
Capsules mature Jun–Sep. +
papillose +
distinct +
5 +  and many +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
straight +
elongate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ovoid;reniform +
branched +  and simple +
16 cm160 mm <br />0.16 m <br /> (20 cm200 mm <br />0.2 m <br />) +
distalmost +
pentagonal +  and 2-fid +
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Bartramidula +
Philonotis fontana var. americana +
Philonotis fontana +
variety +
intermediate +
unpaired +  and paired +
specialized +
synoicous +, autoicous +, dioicous +  and sexual +
enlarged +
differentiated +
thin +  and thick +
reddish-brown +, reddish +, light +  and dark green or yellowish +