Crossidium aberrans

Holzinger & E. B. Bartram

Bryologist 27: 4, plate 2. 1924,.

Synonyms: Crossidium spatulifolium Holzinger & E. B. Bartram
Treatment appears in FNA Volume 27. Treatment on page 612. Mentioned on page 592.

Plants 2–3.5 mm. Leaves lingulate, lanceolate or ovate, 0.7–1.4 mm, margins recurved from near apex to near base, apex rounded or emarginate, piliferous; costa excurrent, with an abaxial epidermis, filaments of 1–4 cells, cells subspheric, with several papillae per cell, terminal cell subspheric; cells of leaf base 13–51 µm, medial and distal cells 11–20 µm, smooth, with 1–2 abaxial papillae or on either side in distal cells. Sexual condition dioicous or cladautoicous. Seta 8–16 mm. Capsule urn ovoid-cylindric, 1.3–2 mm; operculum 0.5–1 mm; peristome strongly twisted, 650–980 µm. Spores spheric, ovoid or oblong, finely papillose, 9–13 µm.


Phenology: Capsule mature Jan–Jun(-Aug).
Habitat: Soil and rocks under shrubs, shaded banks or in open sites in dry washes
Elevation: moderate elevations (600-1500 m)

Distribution

V27 886-distribution-map.gif

Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah, Mexico (Baja California), Mexico (Sonora), n Africa

Discussion

Crossidium aberrans is easily distinguished by the smooth or 1-papillose cells of the distal leaf blade and by the low filaments with subglobose-papillose terminal cells.

Selected References

None.

Lower Taxa

None.

"broad" is not a number."um" is not declared as a valid unit of measurement for this property.

... more about "Crossidium aberrans"
elongate +  and quadrate +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Claudio Delgadillo M. +
Holzinger & E. B. Bartram +
reniform +  and rounded +
papillose +  and smooth +
usually slightly wider +
rectangular +
rectangular;ovate +
obovoid +
cucullate +
cleistocarpous +  and stegocarpous +
cylindric;ovoid-cylindric +
ovoid-cylindric +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
monoicous +, dioicous +  and sexual +
flat to bulging +
1 (?) +  and 4 (?) +
subspheric +
tomentose +  and bare +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico (Baja California) +, Mexico (Sonora) +  and n Africa +
moderate elevations (600-1500 m) +
differentiated +
multicellular +
Soil and rocks under shrubs, shaded banks or in open sites in dry washes +
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 +
1-stratose +  and twisted +
imbricate +, crowded +  and distributed +
thick-walled +  and firm-walled +
with 1-8 papillae +  and smooth +
monoicous +, dioicous +  and sexual +
ovate +, lanceolate +  and lingulate +
reduced +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
cladautoicous +, dioicous +  and sexual +
inclined +  and erect +
conic;rostrate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
photosynthetic +
compound +, simple +, hollow +  and solid +
flattened +  and 2-fid +
lateral +  and terminal +
not differentiated +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Capsule mature Jan–Jun(-Aug). +
straight +
elongate +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
2 +  and 1 +
oblong +, ovoid +  and spheric +
rounded-triangular +  and rounded-pentagonal +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Crossidium spatulifolium +
Crossidium aberrans +
Crossidium +
species +
ovoid;cylindric +
yellow distally and red +, orange +, red +  and yellow +
stemless +  and perigoniate +
occasionally smaller than the perichaetiate +