Hexalectris
Genus of orchids
From Wikipedia, the free encyclopedia
Hexalectris (crested coralroot)[1] is a genus of the family Orchidaceae, comprising 10 known species of fully myco-heterotrophic orchids.[2] These species are found in North America, with the center of diversity in northern Mexico.[3] None of the species are particularly common.[4] Hexalectris spicata has a wide distribution and is likely the most abundant member of the genus, but is nevertheless infrequent throughout its range.[4] Other species are rare, and some, such as H. colemanii, are threatened or endangered.[5] All species that have been studied form associations with ectomycorrhizal fungi that are likely linked to surrounding trees.[6] Many Hexalectris species are found in association with oak trees (Quercus), which are ectomycorrhizal.[7]
| Crested coralroot | |
|---|---|
| |
| Hexalectris spicata | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Epidendroideae |
| Tribe: | Epidendreae |
| Subtribe: | Bletiinae |
| Genus: | Hexalectris Raf. |
| Type species | |
| Hexalectris spicata (Walter) Barnhart | |
Species
Species accepted as of June 2014:[3]
| Image | Scientific name | Distribution |
|---|---|---|
| Hexalectris arizonica (S.Watson) A.H.Kenn. & L.E.Watson (2010) | Arizona, New Mexico, Texas, Coahuila | |
| Hexalectris brevicaulis L.O.Williams (1940) | central and southern Mexico | |
| Hexalectris colemanii (Catling) A.H.Kenn. & L.E.Watson (2010) | southern Arizona | |
| Hexalectris fallax M.I.Rodr. & R.González (2005) | Jalisco | |
| Hexalectris grandiflora (A.Rich. & Galeotti) L.O.Williams (1944) | widespread from Texas and Chihuahua south to Oaxaca | |
| Hexalectris nitida L.O.Williams (1944) | from Texas and New Mexico to southern Mexico | |
| Hexalectris parviflora L.O.Williams (1940) | from Sonora to Guatemala | |
| Hexalectris revoluta Correll (1941) | western Texas, southeastern New Mexico, northeastern Mexico | |
.jpg) | Hexalectris spicata (Walter) Barnhart (1904) | United States from Arizona east to Florida and Maryland |
 | Hexalectris warnockii Ames & Correll (1943 | Arizona, New Mexico, Texas, northern Mexico |
