Acaulon muticum var. muticum

Treatment appears in FNA Volume 27. Treatment on page 639.

Plants yellowbrown in nature. Spores densely low spiculose-papillose.


Phenology: Capsules mature late fall to spring.
Habitat: Soil, among grasses, pastures
Elevation: low to moderate elevations

Distribution

Calif., Iowa, Kans., Mass., N.Y., N.C., Okla., Tenn., Tex., Europe, Asia, Africa

Discussion

It may be suspected that young plants of both var. muticum and var. rufescens sometimes have smooth, somewhat elliptic spores. A collection from Texas (Bastrop County, Bastrop, F. McAllister, Feb. 1934, A. J. Grout, North American Musci Perfecti 258, UBC) has spheric, heavily papillose spores, 40–45 µm. Specimens with partially smooth spores but a few large granules adherent or scattered through the spore sac (e.g., Oregon, Lane County, Eugene, Alton Baker Park, D. Wagner 1834, Mar. 9, 1978, UBC) are here placed tentatively with the typical variety. A specimen from Iowa (Poweshiek County, Conard & Peck v.11.35, MO) has leaves blotched red in KOH and, variably among capsules, weakly papillose to distinctly crowded-spiculose spores.

Selected References

None.

Lower Taxa

None.

0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.175 cm1.75 mm <br />0.00175 m <br />) +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
appressed +  and weakly spreading +
Acute (?) +  and Ovate (?) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Richard H. Zander +
(Hedwig) Müller Hal. +
rounded +
papillose +  and smooth +
not differentiated +
Phascum muticum +
lobed +  and mitrate +
cleistocarpous +
sexual +  and asexual +
vesiculose +  and thick-walled +
Few (?) +  and Several (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
rhomboid +, rarely +, hexagonal +  and subquadrate +
dentate +, entire +  and serrulate +
Calif. +, Iowa +, Kans. +, Mass. +, N.Y. +, N.C. +, Okla. +, Tenn. +, Tex. +, Europe +, Asia +  and Africa +
low to moderate elevations +
differentiated +
multicellular +
Soil, among grasses, pastures +
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 +
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 +
Capsules mature late fall to spring. +
1 (?) +, 3 (?) +  and 4 (?) +
rectangular +  and not differentiated +
not differentiated +
Bot. Zeitung (Berlin) +
straight +
elongate +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
2 +  and 1 +
red +  and laminal +
spheric +  and elliptic +
rounded-triangular +  and rounded-pentagonal +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Acaulon muticum var. muticum +
Acaulon muticum +
variety +
ovoid;cylindric +
yellow distally and red +, orange +, red +  and yellow +
paroicous +, monoicous +  and dioicous +
elliptic +  and globose +
2 cm20 mm <br />0.02 m <br /> (?) +