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GROWING GOURMET - Anto2ni.it

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522 GLOSSARY<br />

gypsum: calcium sulfate: CaSO4 x 2 H20. A<br />

buffer used in spawn making to keep grain<br />

kernels separated. Calcium sulfate slightly<br />

lamellulae: the short gills, originating from the<br />

edge of the outer peripheral edge of cap but<br />

not fully extending to the stem.<br />

acidifies a substrate as sulphuric acids lignicolous: growing on wood or a substrate<br />

evolve. composed of woody tissue.<br />

H<br />

lignin: the organic substance which, w<strong>it</strong>h cellulose,<br />

forms the structural basis of most<br />

heterothallic: having two or more morphologi-<br />

cally similar pairs of strains w<strong>it</strong>hin the same<br />

species. The combination of compatible<br />

spore types is essential for producing fertile<br />

offspring.<br />

homothallic: having one strain type that is<br />

dikaryotic and self-fertile, typically of mush-<br />

rooms which produce two spores on a<br />

woody tissue.<br />

lumen: the amount of the flow of light em<strong>it</strong>ted<br />

from a single international foot candle.<br />

lux: a measurement of light received by a sur-<br />

faceequalto liumenatadistanceofi meter<br />

over a surface area of 1 square meter.<br />

basidium.<br />

hygrophanous: fading markedly in color upon<br />

drying.<br />

hymenium: the fertile outer layer of cells from<br />

which basidia, cystidia and other cells are<br />

produced.<br />

hymenophore: the fertile portion of the mush-<br />

room bearing the hymenium.<br />

macroscopic: visible to the naked eye.<br />

membranous: being sheath-like in form.<br />

meiosis: the process of reduction division by<br />

which a single cell w<strong>it</strong>h a diploid nucleus<br />

subdivides into four cells w<strong>it</strong>h one haploid<br />

nucleus each.<br />

mesophile: an organism thriving in moderate<br />

temperature zone, usually between 40-90° E<br />

hypha, hyphae (p1.): the individual fungal cell. (4-32° C.)<br />

hyphal aggregates: visible clusters of hyphae,<br />

resembling cottony tufts of mycelium, often<br />

preceding but not necessarily leading to primordia<br />

formation.<br />

hyphosphere: the microscopic environment in<br />

direct proxim<strong>it</strong>y to the hyphae.<br />

K<br />

micron: 1,000,000th of a meter.<br />

m<strong>it</strong>osis: the non-sexual process of nuclear di-<br />

vision in a cell by which the chromosomes of<br />

one nucleus are replicated and divided<br />

equally into two daughter nuclei.<br />

monokaryon: the haploid state of the mushroom<br />

mycelium, typically containing one<br />

karyogamy: the fusion of two sexually oppo-<br />

s<strong>it</strong>e nuclei w<strong>it</strong>hin a single cell.<br />

L<br />

nucleus.<br />

monom<strong>it</strong>ic: fungal flesh consisting only of thin<br />

walled, branched and narrow (generative)<br />

hyphae.<br />

lageniform: thin and sinuous<br />

mycelium: a fungal network of thread-like<br />

lamellae: the gills of a mushroom, located on cells.<br />

the underside of the cap. mycology: the study of fungi.<br />

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