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Glossary: S.

Sacing:

At the time of casting, the supplementation of nutrient to the substrate.

Salation:

A mutation that develops from an isolated mycelium that has a known pure genotype.

Sanitise:

To kill-off undesirable bacteria in a substrate and utensils by either boiling water or steam in the range of 140-160ºF.

Saprophyte(saprophyitic):

A mushroom that lives on dead organic matter.

Scales:

Small to large raised flaps or flakes, on the cap or stem.

Scanning electron microscope:

The scanning of an object with a electronic microscope in a vacuum with a beam of electrons which gives an image of high magnification and resolution that is displayed on a monitor.

Sclerotium (pl. sclerotia):

The harden mass of mycelium often of a dark pigment appearance which is the resting vegetative stage in most fleshy and nonfleshy fungi from which fruitbodies or viable mycelium can develop. (pinheads).

Scratching:

The roughening up and disturbance of the surface of a casting in order to maintain an open porous condition to encourage primordial formation (pinheads).

Seceding:

Where the gills have torn free and separated from the mushroom stem, often leaving longitudinal type of ridges on the apex of the stem.

Sector:

A diverging mycelium geometric growth ( most noticeable in a petri dish filled with a media) of which the appearance contrasts with the surrounding mycelium. which is indicative of genetic mutation.

Secondary mycelium:

A binuclleate and dikaryotic mycelium which is characterized by clamp connections, anastomosis and which is not genetic but is assimilative in its function.

Senescent:

Of age, old, past its best.

Septate:

Of cells divided by walls

Sinate:

Said of the gill where it attaches to the stem and appears notched.

Somatic:

An assimilative phase of mycelial growth.

Sordid:

Appearing dirty looking.

Spawn:

A mycelium on a carrier material which is then used to inoculate a sanitised substrate.

Species:

A subordinate category of organims which have a common attribute and are capable of interbreeding and rank after a genus.

Spore:

Reproductive cell.

Spore print:

A deposit of spores onto a piece of paper from a mushroom.

Sporocarps:

The spore producing fruit body.

Sporulate:

To produce or release spores by multiple cell fission.

Stem:

The stalk of the mushroom. (Stipe)

Sterigmata (pl. sterimatae):

The arms of the basidium.

Stipe:

The stalk or stem.

Strain:

The separate individuals within a species that have a common genetic heritage but differ in features of no taxonomic significance.

Striated:

The distinctive grooves or lines at the cap edge.

Stroma:

A dense cushion-like aggregation of mycelium forming on the surface of the casting or compost indicating somiatic (non-genetic ) growth.

Strophariaceae:

The dark brown species of spored fungi of the genera Melanotus, Naematoloma, Pholiota, Psiocybe and Strophria.

Stropharioid:

Resembling the mushroom species stropharia, which has a membranous ring on the stem, a convex cap and purplish brown spores.

Substrate:

Any sanitized fibrous material on which mushrooms are grow. eg straw, sawdust, compost or soil.

Symbiotic:

Any relationship between two or more different organisms in close association especially one that is of benefit to all involved.

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