Homomallium mexicanum
Rev. Bryol. 37: 53. 1910.
Illustrated
Stems 2–2.5 cm, green or yellowish green, branches curved at apices. Leaves homomallous, 0.8–1.3 (–1.5) mm; margins reflexed at base, entire or serrulate at apex; apex abruptly slender-acuminate, not subulate; alar cells quadrate-rectangular, walls thick, region extending 1/4–1/3 leaf margin; distal laminal cells 25–35 × 4–7 µm, walls thick. Seta yellow-orange, 1–1.6 cm. Capsule yellowish to reddish, 1–1.7 mm. Spores 11–20 µm, minutely papillose.
Distribution
w United States, Mexico, Asia, Australia
Discussion
Varieties 2 (2 in the flora).
Homomallium mexicanum is a largely subtropical species that appears more robust than the other two North American species of Homomallium because of its larger and more spreading leaves.
Selected References
None.
Key
| 1 | Leaves to 1.3 mm, not imbricate, ovate-lanceolate; apices narrowly acuminate; margins denticulate distally. | Homomallium mexicanum var. mexicanum |
| 1 | Leaves to 1.5 mm, closely imbricate, broadly ovate; apices short-acuminate; margins entire. | Homomallium mexicanum var. latifolium |
... more about "Homomallium mexicanum"
deciduous +
not subulate;slender-acuminate +
asexual +
distinct +
not decurrent +
curved +
asymmetric +
falcate-secund +
straight +
erect-spreading +
oblong-ovate +
differentiated +
naked +
hairy +
cucullate +
asymmetric +
yellowish;reddish +
contracted +
arcuate +
oblong-cylindric +
constricted +
excavate +
quadrate-rectangular +
differentiated +
absent +
absent +
rudimentary +
nodulose +
hyaline +
specialized +
elongate +
25um;35um +
4um;7um +
papillose +
bordered +
cross striate +
cross-striolate +
papillose +
clustered +
filamentous +
1-stratose +
absent +
Present +
trabeculate +
reflexed +
dense +
specialized +
oblong +
leafy +
asexual +
foliose +
absent +
filamentous +
Rev. Bryol. +
1910 +
proximal +
keeled +
yellow-orange +
elongate +
Illustrated +
round +
branched +
falcate-secund +
straight +
creeping +
oblong-ovate +
differentiated +
Homomallium mexicanum +
Homomallium +
species +
thick +
dense +
medium-sized +