Leptodon

D. Mohr

Observ. Bot., 27. 1803.

Etymology: Greek leptos, delicate, and odon, tooth, alluding to peristome
Treatment appears in FNA Volume 28. Treatment on page 625. Mentioned on page 623, 624, 653.
 TaxonIllustrator 
LeptLeptodonSmithii.jpegLeptodon smithiiPatricia M. Eckel

Secondary stems densely 2-pinnate to flagelliform or irregularly pinnate; paraphyllia present; pseudoparaphyllia subfoliose. Stem-leaves appressed or erect when dry, spreading when moist, oval to oblongelliptic; margins plane or recurved on one side proximally, entire; apex obtuse or occasionally broadly acute; costa single, 50–70% leaf length, or double, short; alar region weakly differentiated; medial laminal cells isodiametric. Branch leaves similar, often smaller. Sexual condition dioicous; perichaetial leaf apex squarrose. [Seta 1.5–2 mm. Capsule erect, emergent, ovoid to oblong-ellipsoid; stomata absent; operculum obliquely rostrate; exostome teeth connate at base, linear-lanceolate, spiculose; endostome rudimentary. Calyptra hairy. Spores 12–15 µm, brownish yellow].

Distribution

Colo., South America, Eurasia, n, s, c Africa, Pacific Islands (New Zealand), e Australia, temperate regions

Discussion

Species 4 (1 in the flora).

The paraphyses are 2-seriate in Leptodon, but 1-seriate in Forsstroemia.

Selected References

None.

Lower Taxa

"elongating" is not a number.

... more about "Leptodon"
acute +  and obtuse +
Lloyd R. Stark +
D. Mohr +
simple;many-branched +
dioicous +  and sexual +
incurved +  and erect +
short;elongate +
cucullate +
quadrate;transversely elongate +
Colo. +, South America +, Eurasia +, n +, s +, c Africa +, Pacific Islands (New Zealand) +, e Australia +  and temperate regions +
Greek leptos, delicate, and odon, tooth, alluding to peristome +
spreading;erect-spreading;squarrose +
ovatelanceolate +
dioicous +, autoicous +, sexual +  and asexual +
conic-rostrate +
2 (?) +  and 1 (?) +
Observ. Bot., +
differentiated +
densely 2-pinnate;flagelliform or irregularly pinnate +
spheric +
spreading;erect;appressed +
oval +  and oblongelliptic +
Leptodon +
Leptodontaceae +
light-brown +
light green;yellow-green +