- (lacking a
powdery coating),
positioned lower than the
thalline margin. The
parathecium (a
layer of
tissue surrounding the disc)
typically expands to
about 40 μm...
- in lichens, it is used to
refer to the paraphysis-lined
cavity in a
parathecium that ends in a pore, or more
generally to any pore from
which spores...
- He has been
credited for
having introduced the
terms amphithecium and
parathecium in an 1898
monograph on the
lichen genus Roccella. Darbishire, O.V. (1898)...
- be displaced, and the
cortex eroded. The
proper exciple forms a thin
parathecium and is
sometimes incon****uous. The
epithecium (upper
layer of the ascomata)...
-
yellowish and
measures about 100–155 μm in height. The
surrounding tissue (
parathecium) is thin and
contains orange pigment,
while the
internal tissue (hamathecium)...
- are part of a
parathecial ring that has a flat disc in the center. The
parathecium is 25–40 um wide and
tends to form
around the flat disc in the center...
- (spore-producing layer) and
hypothecium (layer
below the hymenium) are hyaline. The
parathecium (layer
surrounding the apothecium)
consists of
elongated cells, and the...
-
diagnostic feature of most
Wetmoreana species is the
prosoplectenchymatous parathecium (proper exciple) of the apothecia.
Ascospores are
polaridiblastic with...
- thallus,
developing reddish-brown
rough discs. Each
apothecium has a
parathecium (outer layer) that is 8–30 μm wide. The hymenium,
where the
spores are...
- t=hymenium, sp=spore, s=asci, p=paraphyses, e=epithecium, h=hypothecium, pt=
parathecium or excipulum, a=algal layer, m=medulla, r=cortex The
ascospores of Physcia...
