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Sterigma

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sterigma

[stə′rig·mə]
(botany)
A peg-shaped structure to which needles are attached in certain conifers.
(mycology)
A slender stalk arising from the basidium of some fungi, from the top of which basidiospores are formed by abstriction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sterigma

 

in basidiomycetous fungi, one of the stalks of the sporebearing organ, or basidium. Basidiospores develop on the sterigmata.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
11): lamella antevaginalis absent; lamella postvaginalis T-shaped with lateral arms truncated, posterior margin with a wide median depression with semicircular patch of small bristles; inferior portion strongly constricted at the middle; ostium bursae wide, and free; bursa copulatrix less than 3 times the sterigma length; ductus bursae broad, cylindrical and sclerotized, shorter than corpus bursae; corpus bursae posteriorly jagged, anteriorly ovoid, without signa.
Thespieus maacki sp. nov. (Lepidoptera: Hesperiidae, Hesperiini): a new skipper from southern Brazilian paramos
minima, have a more or less square and largely membranous sterigma. The lamella antevaginalis and lamella postvaginalis are fused wherein lies the ostium bursae.
Variation of Copaeodes minima and the status of Copaeodes rayata (Lepidoptera: Hesperiidae: Hesperiinae)
Sterigma in lateral view with curved caudal edge extended to prominent point caudad from dorsal edge, cephalad edge bulbous, papillae anales robust, more-or-less quadrate but being somewhat broader ventrally, caudal edge straight.
A new Parelbella from Mexico (Hesperiidae: Pyrginae: Pyrrhopygini)
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