Laboulbenia elaphri Speg.

In acetic carmine


THALLUS 310-575 µm long, olive-brownish; perithecia and branches of old thalli usually darker, with a blackened foot (f).


In acetic carmine

RECEPTACLE (r) 225-450 µm long, slender, with more or less elongated cells (rsc), especially cell III (rscIII) which is up to five times longer than broad; cell V (rscV) is small, obtriangular. Insertion cell (ic) dark, thick, and constricted.



In acetic carmine

APPENDAGES of two types, the outer one and the inner one.

Outer appendage (oapp) up to 510 µm long, consists of elongate cells, with a single branch formed on the suprabasal cell to produce two long, straight, and rigid branches.

Inner appendage (iapp) composed of a small basal cell and two branches, which are short, divided, and have many terminal antheridia (a) when young; later, some of the antheridia proliferate to form two long, straight, or arcuate inner branchlets; they usually are divided once and bear a few sessile old antheridia near the base.

In acetic carmine


PERITHECIUM (p) 130-185 x 50-90 µm, ovate, with subapical blackened areas and a straight apex; the lips are rounded, equal, or the posterior ones are slightly longer.

Stalk of perithecium composed of two cells, cell I (scpI) and cell II (scpII); cell II usually isodiametric or elongated in very slender thalli.

In acetic carmine

SPORES (s) elongate, narrow, hyaline.



HOST AND DISTRIBUTION. The specimens of L. elaphri characterized here come from Elaphrus cupreus Duftschmid (Carabidae). This fungus also occurred on E. riparius (Linnaeus) (Majewski 1994).

According to Majewski (1994), L. elaphri was recorded on the two hosts listed above in many countries of Europe, including Poland.


Majewski T. 1994. The Laboulbeniales of Poland. Polish Bot. Stud. 7, 3-466.