Acacia macracantha, A. pennatula, and A. cochliacantha (FABACEAE: MIMOSOIDEAE) species complex (Seigler & biner, 1988)
ACHILLEA-LANULOSA (Gurevitch, 1992)
Allium douglasii complex (ALLIACEAE) (Peterson et al., 1988)
Antennaria rosea (ASTERACEAE: INULEAE) (Bayer, 1989)
Aphlandra pulcherrima complex (ACANTHACEAE) (McDade, 1984)
AVENA-BARBATA (Cluster & Allard, 1995)
Babassu Complex (ORBIGYNA ssp.: PALMAE) (Anderson et al.,1988)
Carex atropicta complex (CYPERACEAE) (Wheeler, 1990)
Carpinus carolinia (Furlow, 1987)
CONDALIA-MONTANA (RHAMNACEAE) SPECIES COMPLEX (Zygadlo et al., 1992)
CREPIS-TECTORUM SSP-PUMILA (ASTERACEAE) (Andersson, 1992)
CUPRESSUS-SEMPERVIRENS (Schiller & Madar, 1991)
Cyperus esculentus (Yellow nutsedge) (Schippers et al., 1995)
Epipactus helleborine (L.) Crantz Species Group (ORCHIDACEAE) (Tyteca & Dufrene, 1994)
Glycine tomentosa (Doyle & Brown, 1989)
GUZMANIA (BROMELIACEAE) (Luther & Kress, 1996)
Helianthus debilis complex. (Wain, 1983)
IMPATIENS-PALLIDA (Bennington & McGraw, 1995)
Lasthenia californica (ASTERACEAE) (Cosner & Crawford, 1990)
Louisiana irises.(Arnold et al., 1991)
Mexican Cucurbita (Wison, 1989)
Moreae fugax complex (IRIDACEAE) (Goldblatt, 1986)
PELARGONIUM-PINNATUM SPECIES COMPLEX (GERANIACEAE) (Marais, 1993)
Physalis viscosa complex (SOLANACEAE) (Sullivan, 1985)
Polyalthia hypoleuca complex (ANNONACEAE) (Rogstad, 1989)
Polypodium vulgare (Haulfer et al., 1995)
POPULUS-TREMULOIDES (SALICACEAE) (Jelinski & Cheliak, 1992)
POTENTILLA-ARGENTEA (Holm, 1995)
RUELLIA SECT URCEOLATA (ACANTHACEAE) (Ramamoorthy, 1992)
Solanum POTATO : THE BREVICAULE-COMPLEX (Vandenberg et al., 1996)
Solanum megistracolobum and S. toralapanum (SOLANUM sect. PETOTA, series MEGISTACROLOBA) (Giannattasio & Spooner, 1994)
WIKSTROEMIA (THYMELAEACEAE) (Mayer, 1991)
ACROMYRMEX LEAFCUTTER ANTS (HYMENOPTERA, FORMICIDAE) (Botanm & Boomsma, 1996)
ANOPHELES-CULICIFACIES COMPLEX (Adak et al., 1994)
ANOPHELES-QUADRIMACULATUS SPECIES (Rutledge & Meek, 1994)
APHANOGMUS-HAKONENSIS SPECIES COMPLEX : (HYMENOPTERA, CERAPHRONIDAE) (Polaszek & Dessart, 1996)
tesselatus species complex (COLEOPTERA: CURCULIONIDAE: NAUPACTINI) (Normark, 1996)
BACTROCERA (NOTODACUS) XANTHODES (BROUN) SPECIES COMPLEX (DIPTERA, TEPHRITIDAE) (Hoeben et al., 1996)
BOMBUS-LUCORUM AUCT SPECIES COMPLEX (HYMENOPTERA, APIDAE) (Scholl et al., 1990)
Brachionus plicatilis species complex (ROTIFERA) (Gomez & Snell, 1996)
cave spiders of southern Appalachians (ARANEAE: NESTICADAE: NESTICUS) (Hedin, 1997)
CHEWING LICE (PHTHIRAPTERA, TRICHODECTIDAE) (Price & Hellenthal, 1996)
CYPHON-COLLARIS (COLEOPTERA, SCIRTIDAE) (Young, 1990)
CYPRAEA, C-CRIBRARIA COMPLEX (Burgess, 1993)
DAPHNIA-GALEATA-MENDOTAE (Taylor & Hebert, 1992)
Drosophila athabasca (Ford & Aquadro, 1996)
DROSOPHILA-AURARIA SPECIES-COMPLEX (Kimura et al., 1993)
DROSOPHILA-AURARIA SPECIES-COMPLEX (Kimura, 1990)
DROSOPHILA-SULFURIGASTER SPECIES COMPLEX (Suzuki et al., 1990)
ENCHENOPA-BINOTATA SPECIES COMPLEX (HOMOPTERA, MEMBRACIDAE) (Pratt & Wood, 1992)
Eupithecia frequens (LEPIDOPTERA, GEOMETRIDAE) (Vojnits, 1992)
GYRATRIX-HERMAPHRODITUS SPECIES COMPLEX (PLATYHELMINTHES, KALYPTORHYNCHIA) (Curinigalletti & Puccinellii, 1990) (Puccinelli et al., 1990) (Curinigalletti & Puccinelli, 1994)
JAERA-ALBIFRONS (ISOPODA, ASELLOTA) (Solignac et al., 1990)
LEPIDAPEDON-ELONGATUM (LEBOUR, 1908) SPECIES-COMPLEX (DIGENEA, LEPOCREADIIDAE) (Bray & Clers, 1992)
LEPTASTERIAS (ECHINODERMATA, ASTEROIDEA) SPECIES COMPLEX (George, 1994)
Leptasterias hexactis (ECHINODERMATA: ASTEROIDEA) (Foltz et al., 1996)
LEPTASTERIAS-HEXACTIS (ECHINODERMATA, ASTEROIDEA) (Wast et al.,1990)
LINEPITHEMA HUMILE SHATTUCK (EQUALS IRIDOMYRMEX-HUMILIS MAYR) (Lorite et al., 1996)
LITTORINA NEGLECTA BEAN (periwinkle) (Grahame et al., 1995)
LITTORINA-SAXATILIS SPECIES COMPLEX (PROSOBRANCHIA, MOLLUSCA) (Warwick et al.,1990)
Littornia saxatilis (Johannesson et al., 1993)
MALARIA MOSQUITO (DIPTERA, CULICIDAE) ( Rutledge et al., 1996)
Mytilus edulis species complex (Gardner, 1996)
NYSTALEA-AEQUIPARS WALKER SPECIES COMPLEX (LEPIDOPTERA, NOTODONTIDAE) (Weller, 1990)
Rhagoletis pomonella, the apple maggot fly (Berlocher & McPheron, 1996)
RHAGOLETIS-POMONELLA SIBLING SPECIES COMPLEX (Payne & Berlocher, 1995)
RONCUS-L KOCH (NEOBISIIDAE, PSEUDOSCORPIONES) (Curcic, 1992)
RUGOPHARYNX-DELTA SPECIES COMPLEX (NEMATODA, STRONGYLOIDEA) (Beveridge et al., 1995)
SIMULIUM-EXIGUUM (Charalambrous et al., 1993)
SIMULIUM-OCHRACEUM SPECIES COMPLEX (DIPTERA: SIMULIIDAE) (Millest, 1992)
Solenopsis saevissima complex (Ross & Trager, 1990)
AGROCYBE-PRAECOX (Flynn & Miller, 1990)
CLOSTERIUM-EHRENBERGII (CHLOROPHYTA) (Kaisai & Ichimura, 1990)
HYPHODERMA-PRAETERMISSUM COMPLEX (Hallenberg et al.,1994)
Ionaspis-Hymenelia complex (Lichenized Ascomycotina) (Lutzoni & Brodo, 1995)
MICROCOLEUS-CHTHONOPLASTES (CYANOBACTERIA) (Karsten, 1996)
Morchella esculenta complex (Yoon et al., 1990)
PARAMECIUM-AURELIA SPECIES COMPLEX (Komala, 1994)
PARAMECIUM-AURELIA SPECIES COMPLEX (Komala, 1996) (Przybos & Komala, 1996) (Przybos & Chornobai, 1994) (Przybos & Komala, 1994) (Przybos & Komala, 1992) (Kombala & Przybos, 1995)
RAMALINA-SILIQUOSA COMPLEX (Culberson et al., 1992)
RHIZOCTONIA-SOLANI SPECIES COMPLEX (Liu et al., 1993)
ZOSTERA-MARINA (seaweed) (Backman, 1991)
ASTYANAX-SCABRIPINNIS (PISCES, CHARACIDAE) (Moreira & Bertollo, 1991)
Bothrops atrox complex (REPTILIA: SERPENTES: VIPERIDAE) (Wüster et al., 1996)
Ctenomys (RODENTIA: CTENOMYIDAE) (Gallardo & Palma, 1992)
DIPLOPHOS-TAENIA SPECIES COMPLEX (GONOSTOMATIDAE) (Ozawa et al., 1990)
HOUSE MOUSE-SPECIES COMPLEX (Hammer & Silver, 1994)
MASTOMYS-NATALENSIS AND MASTOMYS-COUCHA (RODENTIA, MURIDAE) (Dippenaar et al., 1993)
NAJA-NAJA SPECIES COMPLEX (Wuster, 1996)
RHINOGOBIUS-BRUNNEUS SPECIES COMPLEX (Katoh, 1996)
Russel's viper (Wüster, 1992)
SIMULIUM-METALLICUM SPECIES COMPLEX (DIPTERA, SIMULIIDAE) (Millest, 1990)
TIMMATOM-NANUS SPECIES COMPLEX (ACTINOPTERYGII, GOBIIDAE) (Winterbottom, 1990)