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µ:
(mu) a micron, 1µ=0.001 millimetre (one-thousandth of a millimeter)
adnate:
(of gills) connected to stem by whole depth of gill, e.g. Stropharia aeruginosa
adnexed:
(of gills) connected to stem by part of the depth of the gill
adpressed:
closely flattened onto surface
agaric:
general term for a fungus with gills
Ammonia:
a 50% aqueous solution
amyloid:
turning blue-black in iodine solutions such as Melzer’s reagent
appendiculate:
fringed with remains of the veil, e.g. Lacrymaria velutina
appressed:
closely flattened onto surface
Ascomycetes:
one of the major groups in fungi containing all those producing spores in asci which are liberated by pressure
ascospores:
reproductive cell of the Ascomycetes
ascus:
(plural asci) elongated cell in which ascospores are produced
basidia:
club-shaped cells on which spores are produced in Basidiomycetes
Basidiomycetes:
a major and very diverse group of fungi,including gill fungi, boletes, polypores, clavarias, jelly fungi and Gasteromycetes, characterized by the presence of Basidia
basidiospore:
reproductive cell of the Basidiomycetes
binding hyphae:
much-branched, thick-walled hyphae without dividing cell walls which bind other hyphae together
bulb:
abrupt swelling at stem base
bulbous:
swollen into a bulb, e.g. Cortinarius auroturbinatus
caespitose:
joined in tufts, e.g. Hypholoma fasiculare
campanulate:
bell-shaped, e.g. Conocybe lactea
capillitium:
mass of sterile threadlike fibres among the spores in the Gasteromycetes which may aid spore dispersal
capitate:
with a round head
cartilaginous:
firm but flexible, as opposed to granular
cheilocystidia:
cystidia on the gill edge
chlamydospore:
a thick-walled, non-deciduous spore
chrysocystidia:
cystidia with granular contents which turn yellowish in alkali solutions
clamp connection:
a hyphal outgrowth connecting the two adjoining cells resulting from a cell division bypassing the dividing cell wall and apparently involved in the movement of nuclei
clavate:
club-like, e.g. Clitocybe clavipes
coralloid:
much-branched, corallike
cortina:
(adjective cortinate) weblike covering running between stem and cap edge enclosing the gills, e.g. Cortinarius auroturbinatus
cortinal zone:
faint remnant of cortina on stem
crescentric:
crescent-like in form
cuticle:
the surface tissue layer of the cap or stalk
cystidiole:
a sterile cell protruding beyond the spore-bearing surface
cystidium:
(plural cystidia) sterile cell, variable in shape, occurring between basidia in the sporebearing surface, or in other parts of the fruit body
decurrent tooth:
(of gill) where only the narrow end portion of the gill runs down the stem
decurrent:
(of gills) running down the stem, e.g. Clitocybe infundibuliformis
dendroid:
tree-like
dermatocystidia:
cystidia on the cap surface
dextrinoid:
turning reddish-brown with iodine solutions such as Melzer’s
dichotomously:
(branched) branching repeatedly in two
dimitic:
having two kinds of hyphae
eccentric:
(of stem) off center, not centered in the cap
emarginate:
(of gills) see sinuate
equal:
(of stem) being of the same thickness over its entire length
excentric:
off-centred
FeSO4:
solution or crystal applied to Russula stems may give significant colour change
fibril:
a small fibre
fibrillose:
covered with small fibres
filiform:
thread-like
fimbriate:
fringed
flexuose, flexuous:
undulating
floccose:
cottony, covered with cottony tufts
free:
(of gills) not connected to stem, e.g. Amanita muscaria
fugacious:
short-lived, fleeting
fusiform:
spindle-shaped, narrowing at both ends
fusoid:
somewhat spindle-shaped
Gasteromycetes:
a large, diverse group within the Basidiomycetes characterized by the basidiospores maturing within the fruit body; includes puff-balls, earth stars, stinkhorns and birds-nest fungi
generative hyphae:
thin-walled, branched hyphae with dividing cell walls, giving rise to other types of hyphae, e.g. binding hyphae
germ-pore:
a differentiated area in a spore wall which may give rise to a germination tube
glabrous:
smooth, hairless
glandular dots:
moist, sticky spots on surface of stem
gleba:
fleshy mycelial tissue which contains the spore-bearing cavities present in asteromycetes
gloeocystidia:
thin-walled cystidia with refractive, frequently granular contents
granulate:
covered with tiny particles
hyaline:
translucent or transparent, colourless
hygrophanous:
becoming darker coloured and appearing watersoaked when wet, drying paler
hymeniform:
resembling a hymenium but lacking functional basidia
hymenium:
spore-bearing surface
hypha:
(plural hyphae) a single filament, the basic unit forming the fungus (adjective hyphal)
immarginate:
without a distinct edge
infundibuliform:
funnel-shaped
innate:
inseparable, bedded in
intercalary:
between two cells
iodoform:
a crystalline compound of iodine, used as an antiseptic, with a distinctive smell (iodine)
lageniform:
shaped like a narrow-necked flask
lanceolate:
elongate and tapering towards both ends
latex:
a milky, usually white juice exuded by the gills of lactarius species when cut or broken
marginate:
(bulb) having a well-defined edge, e.g. Cortinarius amoenolens
Melzer’s Reagent:
1.5g iodine, 5g potassium iodide + 100g chloral hydrate dissolved in 100ml warm distilled water; mucronate with a short, sharp point
milk:
a milky, usually white juice exuded by the gills of Lactarius species when cut or broken
monomitic:
having only one kind of hyphae
mycelium:
(plural mycelia) vegetative stage of a fungus comprising a thread-like to felt-like mass
NaOH or KOH:
sodium or potassium hydroxide: a 10% aqueous solution
palmate:
having lobes radiating from a central point, like fingers on a hand
papillate:
having a small, nipplelike protuberance
paraphyses:
sterile hyphal filaments interspersed between the asci
partial veil:
see veil
pedicel:
a small stalk
pellicle:
a detachable skin-like cuticle
peridioles:
pea-shaped structures containing the spores
perithecia:
flask-shaped spore producing chambers found in the Pyrenomycetes group of Ascomycetes
Phenol:
a 2% aqueous solution
pleurocystidia:
cystidia on gill sides
pore:
(of polypores) the mouth of a tube
pruinose:
having a flour-like dusting
punctate:
minutely dotted or pitted
pyriform:
pear-shaped
recurved:
bent back
reflexed:
turned sharply back or up
resupinate:
lying flat on the substrate, with the spore-producing layer outwards
reticulum:
a network of raised ridges found on surface of stem or spores of some mushrooms rhizoid root-like structure
rhizoid:
root-like structure
rhizomorph:
cord-like structure comprising a mass of hyphae
ring zone:
faint mark where ring has been
ring:
remains of partial veil, only present in some Agarics (see partial veil)
saccate:
bag-like
sclerotium:
(plural sclerotia) firm, rounded mass of hyphae, often giving rise to a fruit body
scurfy:
surface covered with tiny flakes or scales
sensu lato:
in the broad sense
septate:
divided by cell walls
septum:
(plural septa) a dividing cell wall
sessile:
without a stem
seta:
(plural setae) a stiff hair or bristle
sinuate:
(of gills) = emarginated notched just before joining the stem, e.g. Hebeloma crustuliniforme
sphaerocyst:
a globose cell
sphaeropedunculate:
a cystidium swollen spherically at the tip and tapered into an elongated stalk
spinulose:
finely spiny
spore print:
deposit of spores falling from a cap placed gills or pores downwards on a sheet of paper or glass
spore:
general term for the reproductive unit of a fungus, usually consisting of a single cell which may germinate to produce a hypha from which a new mycelium arises (see ascospore, basidiospore)
sporulating:
producing spores
squamous, squamulose:
having small scales
squamule:
a small scale
stellate:
star-like
striate:
with fine lines
sub lente:
(literally under a lens) observed through a magnifying lens
sub:
(prefix) not quite, somewhat, e.g. subglobose, almost spherical
sulcate:
grooved
SV:
sulpho-vanillin: a few crystals of vanilla dissolved in 2ml conc. sulphuric acid + 2ml distilled water to give a yellow solution. A drop placed on a Russula stem discolours violet-purplish in most cases or carmine in other species.
tomentum:
thick matted covering of soft hairs (adjective tomentose)
trimitic:
having three kinds of hyphae
tuberculate:
with small wart-like nodules
tubes:
spore-producing layer in certain fungi, e.g. Boletus pinicola
umbo:
a central hump on a cap like a shield boss
umbonate:
having an umbo
universal veil:
see veil
utriform:
bag- or bladder-like
veil:
protective tissue enclosing the developing fruit body; universal veil encloses the whole developing fruit body, partial veil (of agarics and certain boletes) joins the edge of the cap to the stem enclosing the developing spore-producing surface and in some general later forming the ring or cortina (adjective velar)
ventricose:
inflated or swollen
vermiform:
worm-like
verrucose:
with small rounded warts
vesicle:
small bladder-like sac (adjective vesicular)
vesiculose:
formed of vesicles
vinaceous:
wine-coloured
volva:
cup-like bag enclosing stem base in some agarics, the remains of the universal veil
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