Baden-Württemberg - Lichens of Wales

paraphysoid: arising before or during the
production of asci “tissue”, that through
lengthening becomes similar to an accumulation
of pseudoparaphyses, very flaccid and reticulate.
paraplectenchymatous: a ± uniform fungus tissue
consisting of rounded-multiangular, non
elongated cells, resembling the parenchyma of
higher plants.
parasymbiont: in lichenology: an additional
fungus partner in the lichen symbiosis, living at
the expense of the photobionts, but in contrast to
a parasite not clearly damaging.
periphyses: in the case of perithecia: true
filamentous hyphae in the ostiole region.
periphysoids: in the case of perithecia:
filamentous hyphae growing down from near the
tip of the ostiole.
perithecium: spherical to pear-form fruiting
body, which opens by a ± central pore, usually ±
strongly sunken into the thallus.
photobiont: the only photosynthesis capable
partner in the symbiosis, i.e. bluegreen or green
algae.
phyllocladium: squamule-like finger-form, corallike
to granular covering of fruticose lichens
(above all in the case of podetia of
Stereocaulon).
placoid: ± rosette growing, marginal lobed
crustose lichens (with “radial” arranged
elongated marginal lobes).
plectenchyme: thick tissue of fungus hyphae.
podetium (-ia): cup-, peg- to fruticose-form,
usually ± erect part of a lichen thallus, apothecia
arise on them (above all in the case of Cladonia).
primary thallus (basal thallus): in the case of
species with a thallus of two different parts, the
part spreading over the substrate is the first part
developing.
polar 2-celled, polar diblastic, polarilocular: 2celled
spores with a thick dividing wall, which is
penetrated by a thin canal connecting both cells.
prosoplectenchymatous: fungus tissue made up
of elongated cells.
protococcoid = chlorococcoid.
pseudocyphellae: delicate whitish points or
(often branching) streaks or flecks, breaking
through the cortex, used for air exchange.
pseudoparenchyma = paraplectenchyma.
pseudopodetia: podetia-like shrubby to peg-like
structures in the case of Stereocaulon.
pycnidium -ia: organ, in the asexual spore
production (pycnospores), usually small point-
like and sunken in the thallus, rarely projecting
wart-form to cylindrical, in the interior with
mostly spherical or pear-form lumen.
pycnospores (conidia): asexual reproductive
parts produced in the pycnidia.
pyrenocarp (pyrenocarpous): lichens with
perithecia as fruiting bodies.
marginal soralia = border soralia.
rhizine: hyphae producing grasping or bunches of
grasping, simple or branched (structures), usually
used in attaching the lichen thallus.
rind (cortex): the outer delimiting layer of thick
backed fungus hyphae.
disk: upper surface of the hymenium in the case
of apothecia.
scheitel (apex): the visible part of the
perithecium.
schizidium: squamulose-like outermost layers of
lichen thallus which peel off or loosen as
diaspores.
slime envelop (gelatinous sheet, perispore):
envelop of slime or gelatin-like substance around
spores and asci.
secondary thallus (vertical thallus): in the case
of species (e.g. Cladonia and Stereocaulon) with
one thallus of two different parts which consist of
the primary thallus and the ± vertical oriented
part.
septum: dividing wall.
sceleroplectenchyma: plectenchyma of very
thick-walled, cemented hyphae.
soralium -ia: delimited dusty-granular structure
(thallus eruption), that develops soredia.
soredia: small, ± spherical granules used in
vegetative reproduction (diaspores), which
consist of a clump of algae surrounded by a web
of hyphae.
sorediate: with soredia.
fissure soralia: soralia consisting of a streak or
fissure-form crack in the thallus upper surface.
sporodochia: pillow form, apothecia-like
structure that produces pycnospores.
peg-form: narrow cylindrical.
habitat: the ecological condition of a growth type
(e.g. sunny boulder, deep cracked bark, cold
collecting basin); not to be confused with
“fundort = locality where found”.
stenök: with narrowly delimited habitat region.
strahlig: radially ordered.
fruticose lichen: bushy branched to simple pegform,
erect growing or bushy or beard-form
pendent, usually only attached to the substrate in
a few places.
stylospores: asexual spore-like reproductive
parts, which are produced in pycnidia-like
organs.
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