Zygodon conoideus

(Dickson) Hooker & Taylor

Muscol. Brit., 71. 1818.

Basionym: Bryum conoideum Dickson Fasc. Pl. Crypt. Brit. 4: 9, plate 11, fig. 2. 1801
Treatment appears in FNA Volume 28. Treatment on page 80. Mentioned on page 79.
Revision as of 06:33, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Plants to 0.7 cm. Stem-leaves loosely erect and not contorted when dry, spreading to ± recurved when moist, oblong-lanceolate, 1–1.7 mm; margins entire; apex broadly acute, apiculus abrupt; costa ending near apex, abaxial surface covered by cells distally; basal laminal cells subquadrate to short-rectangular; distal cells 9–14 µm, papillae 2–4 per cell, walls somewhat thick. Specialized asexual reproduction by cylindric to fusiform gemmae, longitudinal walls absent. Sexual condition dioicous. Sporophytes unknown.


Habitat: Tree trunks, dead branches
Elevation: low elevations

Discussion

Zygodon conoideus is distinguished from Z. viridissimus by its wider, oblong-lanceolate leaves, larger laminal cells, and gemmae that have 4–7 horizontal, but no longitudinal, septa. The apiculus usually has a long, clear terminal cell.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

... more about "Zygodon conoideus"
Dale H. Vitt +
(Dickson) Hooker & Taylor +
decurrent +
Bryum conoideum +
erect +  and ascending +
conic +  and cucullate +
long-exserted +
elliptic-oblong;fusiform +
not constricted +
differentiated +
excurrent +  and percurrent +
roundedquadrate;rounded-hexagonal +
N.S. +, Mass. +  and Europe +
low elevations +
linear-lanceolate +
reflexed +, recurved +  and erect +
rectangular;elliptic +
connate +
occasional +
Tree trunks, dead branches +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
spreading +  and more or less recurved +
oblong-lanceolate +
erect-spreading +  and squarrose-recurved +
not rugose +
oblong-lanceolate +  and linear-lanceolate +
denticulate +, plane to revolute +  and plane +
synoicous +, autoicous +, dioicous +  and sexual +
not differentiated +
rostrate;convex;conic +
mammillose +  and smooth +
sometimes larger +
lateral +  and terminal +
Muscol. Brit., +
sinistrorse +, dextrorse +  and erect +
0.3 cm3 mm <br />0.003 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
erect +  and ascending +
superficial +
Zygodon conoideus +
species +
specialized +
dioicous +  and sexual +
incrassate +
olive brown;reddish-brown;olive brown;reddish-brown;dark green +