Drummondia

Hooker in T. Drummond

in T. Drummond, Musc. Amer., 62. 1828.

Etymology: For Thomas Drummond, 1780 – 1835, Scottish botanist who collected extensively on two expeditions to North America
Treatment appears in FNA Volume 28. Treatment on page 40. Mentioned on page 12, 38, 41, 653.
 TaxonIllustrator 
OrthotrichDrummondiaProrepens.jpegDrummondia prorepensPatricia M. Eckel

Plants medium-sized, in loose mats. Stems creeping, branches erect. Leaves erect-appressed and stiff when dry, spreading to widespreading when moist, broadly lanceolate to oblong-lanceolate, not rugose; margins entire; apex obtuse, acute, or cuspidate; costa ending just below apex; basal laminal cells rectangular to quadrate; distal cells ± roundedquadrate, 6–10 µm, smooth; marginal cells not distinct from basal. Sexual condition autoicous; perichaetial leaves longer than stem-leaves. Seta 2–3.5 mm. Capsule long-exserted, ovate to ovate-oblong, wrinkled when old and dry, not constricted below mouth; stomata absent; peristome single; exostome teeth 16, smooth. Calyptra cucullate, long-conic, smooth, naked, not plicate, covering distal 1/3 of capsule. Spores isosporous, multicellular.

Distribution

North America, ne Mexico, South America, Asia

Discussion

Species 6 (1 in the flora).

Drummondia is characterized by branched, prostrate stems and cucullate calyptrae.

Selected References

None.

... more about "Drummondia"
awned +  and apiculate +
cuspidate;acute;cuspidate;acute;obtuse +
Dale H. Vitt +
Hooker in T. Drummond +
not decurrent +
long-conic +  and cucullate +
16-ribbed +, 8-ribbed +  and symmetric +
long-exserted +
ovate;ovate-oblong +
not constricted +
differentiated +
roundedquadrate +
North America +, ne Mexico +, South America +  and Asia +
linear-lanceolate +
For Thomas Drummond, 1780 – 1835, Scottish botanist who collected extensively on two expeditions to North America +
reflexed +, recurved +  and erect +
striate +  and papillose +
rectangular;elliptic +
connate +
occasional +
flexuose +
spreading +  and widespreading +
not rugose +
broadly lanceolate +  and oblong-lanceolate +
denticulate +, plane to revolute +  and plane +
autoicous +  and sexual +
rostrate;convex;conic +
mammillose +  and smooth +
2-fid +  and conic +
sometimes larger +
lateral +  and terminal +
in T. Drummond, Musc. Amer., +
sinistrorse +, dextrorse +  and erect +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
multicellular +
erect-ascending +
superficial +
Drummondia +
Orthotrichaceae +
specialized +
cladautoicous +, pseudautoicous +, dioicous +  and sexual +
incrassate +
olive brown;reddish-brown;olive brown;reddish-brown;dark green +