Table 2. Species presently accepted in the genus Armillaria (Fr.:Fr.) Staude, with known distributions. Some of these species names may be reduced to synonymy once cultural and mating studies are done. Designations for North American Biological Species (NABS, Anderson & Ullrich, 1979) and European Biological Species (EBS; Korhonen, 1978) are included.
from Volk & Burdsall 1995. Synopsis Fungorum 8:18-19, Fungiflora, Oslo Norway

Armillaria affinis (Singer) Volk & Burdsall	Central America, Caribbean
Armillaria borealis Marxmüller & Korhonen	Europe, EBS A
Armillaria calvescens Bérubé & Dessur.	Eastern North America, NABS III
Armillaria camerunensis (Henn.) Volk & Burdsall	Africa
Armillaria cepistipes Velen.	Europe, North America?, EBS B, NABS XI ?
Armillaria duplicata (Berk.) Sacc.	India
Armillaria ectypa (Fr.) Emel	Europe
Armillaria fellea (Hongo) Kile & Watling	Australia
Armillaria fumosa Kile & Watling	Australia
Armillaria fuscipes Petch	India, Africa?
Armillaria gallica Marxmüller & Romagn.	North America, Europe, Japan, NABS VII, EBS E
Armillaria gemina Bérubé & Dessur.	.Eastern North America, NABS II
Armillaria griseomellea (Singer) Kile & Watling	South America
Armillaria heimii Pegler	Africa
Armillaria hinnulea Kile & Watling	Australia
Armillaria jezoensis Cha & Igarashi	Japan
Armillaria limonea (G.Stev.) Boesewinkel	New Zealand
Armillaria luteobubalina Watling & Kile	Australia
Armillaria mellea (Vahl:Fr.) P.Kumm.	Europe, North America, Asia, NABS VI, EBS D
Armillaria melleo-rubens (Berk. & M.A.Curtis) Sacc.	Central America
Armillaria montagnei (Singer) Herink	South America, Europe
Armillaria nabsnona Volk & Burdsall ined.	Western North America, NABS IX
Armillaria novae-zealandiae (G.Stev.) Herink	New Zealand, New Guinea, Australia, S.Amer.
Armillaria omnituens (Berk.) Sacc.	India
Armillaria ostoyae (Romagn.) Herink	North America, Europe, Asia, NABS I, EBS C
Armillaria pallidula Kile & Watling	Australia
Armillaria procera Speg	. South America
Armillaria puiggarii Speg.	South America
Armillaria sinapina Bérubé & Dessur.	.North America, Japan NABS V
Armillaria singula Cha & Igarashi	Japan
Armillaria sparrei (Singer) Herink	South America
Armillaria tabescens (Scop.) Emel	Europe, North America
Armillaria tigrensis (Singer) Volk & Burdsall	South America
Armillaria viridiflava (Singer) Volk & Burdsall	South America, Europe?
Armillaria yungensis (Singer) Herink	South America

NABS X and NABS XI are presently undescribed and unnamed. Armillaria fulgens (Cooke & Massee) Sacc. [Australia], Armillaria saviczii (Singer) Herink [Byelorussia], Armillaria umbilicata (Pat.) Sacc. & Syd. [Guadeloupe] are true members of the genus Armillaria, but have not been found or studied since their original description, despite extensive collecting in the areas from which they were described. Armillaria solidipes Peck, from Colorado, is also a true Armillaria species, but whether it is conspecific with any other Armillaria species is unknown.
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