found also in the Asiatic orchids Vanda tessellata and Dendrobium macraei (- known formerly as Ephemerantha macraei and Flickingeria macraei - see page Flickingeria). The orchidaceous genera Trichocentrum, Vanda and Dendrobium are all members of the subfamily Epidendroideae and are also placed currently in the subgroup/clade of Higher Epidendroids within the subfamily. Stermitz et al., however, do not report any evidence or suggest that the phenanthrenoids from Trichocentrum possess psychoactive properties. Systematics There is disagreement as to the taxonomic status of some species that have recently been moved from Oncidium to Trichocentrum. Morphological characteristics of "typical" trichocentrums, such as being relatively small and squat with a short, few-to-several flowered inflorescence, contrasts sharply with the larger, heavier oncidiums with long, "mule-ear" leaves and showy, branched inflorescences with many flowers, or the "rat-tail" species with terete leaves. While studies of molecular phylogeny has caused substantial reclassifications, it is uncertain whether this new scheme will be widely adopted. As with many plants, hybridisation might heavily confound cladistic analyses, though the exact extent is unknown. Hybridisation of Trichocentrum with Oncidium has resulted in the hybrid genus × Trichocidium for example, and similar events in the past would result in unrealistic assessments of relationship based on molecular phylogenetic studies with too limited a scope. Species Trichocentrum aguirrei (Colombia) Trichocentrum albococcineum – White-scarlet Trichocentrum (N Brazil to Peru) Trichocentrum ascendens (Mexico to W South America) Trichocentrum aurisasinorum (Central America) Trichocentrum bicallosum (Oaxaca, Chiapas to Central America) Trichocentrum brachyceras (Colombia) Trichocentrum brevicalcaratum (Peru) Trichocentrum caloceras (Costa Rica) Trichocentrum candidum – White Trichocentrum (Veracruz to Chiapas to Central America) Trichocentrum capistratum – Halter Trichocentrum (Costa Rica to Venezuela) Trichocentrum carthagenense (Caribbean, Mexico to N Brazil) Trichocentrum cavendishianum (Mexico to Central America) Trichocentrum cebolleta (S Caribbean, Mexico to NE Argentina) Trichocentrum costaricense (Costa Rica) Trichocentrum cymbiglossum (Costa Rica) Trichocentrum dianthum Pupulin & Mora-Retana (Costa Rica) Trichocentrum estrellense (Costa Rica) Trichocentrum flavovirens (SW Mexico) Trichocentrum fuscum – Dark Trichocentrum (S Tropical America) Trichocentrum haematochilum (Trinidad) Trichocentrum hartii (Venezuela) Trichocentrum hoegei (Mexico: Veracruz, Guerrero, Oaxaca) Trichocentrum ionopthalmum (N Brazil) Trichocentrum johnii (Mexico) Trichocentrum jonesianum (Bolivia and Brazil to NE Argentina) Trichocentrum lacerum (C. America to Colombia) Trichocentrum lanceanum (Trinidad to S Tropical America) Trichocentrum leeanum (Colombia) Trichocentrum lindenii (Mexico to Guatemala) Trichocentrum longicalcaratum Rolfe Trichocentrum lowii (Guatemala) Trichocentrum luridum (Mexico to N South America) Trichocentrum margalegfii (SW Mexico) Trichocentrum × marvraganii (T. jonesianum × T. straceyi) (Bolivia) Trichocentrum mattogrossense (Brazil: Mato