Aloina bifrons

(De Notaris) Delgadillo

Bryologist 76: 273. 1973,.

Basionym: Tortula bifrons De Notaris Mem. Reale Accad. Sci. Torino 40: 305. 1838
Synonyms: Aloina pilifera (De Notaris) H. A. Crum & Steere Aloina rigida var. pilifera (De Notaris) Limpricht
Treatment appears in FNA Volume 27. Treatment on page 615.

Plants to 3 mm. Leaves lingulate to ovate-lingulate, 1–2.5 mm, margins entire to serrulate, undifferentiated at base, apex piliferous, open, broadly obtuse or rounded; costa undifferentiated, with few or no stereid cells, filaments of 4–8 cells, cells subspheric to cylindric; cells of leaf base 18–37 µm, medial and distal cells 9–22 µm, papillae none. Sexual condition dioicous. Seta 6–14 mm. Capsule urn cylindric to ovoid cylindric, 1.7–3.2 mm; operculum conical, rostrate, erect or slightly inclined, 0.9–1.4 mm; peristome 800–1230 µm, strongly twisted; spores 9–24 µm.


Phenology: Capsules mature Jan–Jul(-Aug).
Habitat: Sunny sandy soil or soil over limestone in dry areas
Elevation: moderate elevations (300-800 m)

Distribution

V27 894-distribution-map.gif

Ariz., Calif., Idaho, Mexico (Baja California), Mexico (San Luis Potosí), Mexico (Nuevo León), Mexico (Puebla and Zacatecas), s South America, s Europe, sw Asia (Jordan), Africa (Egypt), Africa (South Africa), Pacific Islands (New Zealand), Australia

Discussion

Aloina bifrons is readily identified by the hyaline hair of the leaf apex and the poorly developed costa that is only evident toward the leaf base, but inconspicuous in the distal half of the leaf. No other North American species of the genus exhibits a piliferous leaf apex.

Selected References

None.

Lower Taxa

None.

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

... more about "Aloina bifrons"
elongate +  and quadrate +
persistent +  and deciduous +
of 1-2 rows +  and differentiated +
Rounded (?) +, Obtuse (?) +  and Piliferous (?) +
Claudio Delgadillo M. +
(De Notaris) Delgadillo +
reniform +  and rounded +
papillose +  and smooth +
usually slightly wider +
rectangular +
differentiated +
auriculate +
Tortula bifrons +
obovoid +
cucullate +
cleistocarpous +  and stegocarpous +
inclined +  and erect +
cylindric;ovoid-cylindric +
cylindric +  and ovoid +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
monoicous +, dioicous +  and sexual +
flat to bulging +
4 (?) +  and 8 (?) +
subspheric +  and cylindric +
tomentose +  and bare +
percurrent +  and long-excurrent +
undifferentiated +
Ariz. +, Calif. +, Idaho +, Mexico (Baja California) +, Mexico (San Luis Potosí) +, Mexico (Nuevo León) +, Mexico (Puebla and Zacatecas) +, s South America +, s Europe +, sw Asia (Jordan) +, Africa (Egypt) +, Africa (South Africa) +, Pacific Islands (New Zealand) +  and Australia +
moderate elevations (300-800 m) +
differentiated +
multicellular +
Sunny sandy soil or soil over limestone in dry areas +
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 +
lingulate +  and ovate-lingulate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
entire +  and serrulate +
undifferentiated +
entire +  and irregularly crenulate +
inclined +  and erect +
rostrate;conical +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
photosynthetic +
compound +, simple +, hollow +  and solid +
dioicous +  and sexual +
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 Jan–Jul(-Aug). +
straight +
elongate +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
2 +  and 1 +
spheric +
rounded-triangular +  and rounded-pentagonal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Aloina pilifera +  and Aloina rigida var. pilifera +
Aloina bifrons +
species +
ovoid;cylindric +
yellow distally and red +, orange +, red +  and yellow +
dioicous +  and monoicous +
stemless +  and perigoniate +
occasionally smaller than the perichaetiate +