Table 2.

Studies reporting extreme basic host specificity.

References	Epiphyte species	Epiphyte family	Endemic	Host species/genus	Host family	Host life form	Habitat	Other trees?
Copeland (1916)	Stenochlaena areolaris	Blechnaceae	Yes	Pandanus simplex1	Pandanaceae	Tree	n/a	n/a
Cortez (2001)	Trichomanes capillaceum	Hymenophyllaceae	No	Alsophila spp., Cyathea spp., Dicksonia spp.	Cyatheaceae, Dicksoniaceae	Tree fern	n/a	Present
da Mota et al. (2009)	Lepanthopsis vellozicola	Orchidaceae	Yes	Vellozia compacta	Velloziaceae	Shrubby monocot	Outcrop	n/a
Hernández and Diaz (2000)	Tetramicra malpighiarum	Orchidaceae	Yes	Malpighia sp.	Malpighiaceae	Shrub	Forest	n/a
La Croix et al. (1991)	Polystachya dendrobiiflora	Orchidaceae	n/a	Xerophyta spp.	Velloziaceae	Shrubby monocot	Outcrop	n/a
Lecoufle (1964)	Cymbidiella falcigera1	Orchidaceae	Yes	Raphia sp.	Arecaceae	Palm	n/a	n/a
	Cymbidiella pardalina1	Orchidaceae	Yes	Platycerium madagascariense	Polypodiaceae	Epiph. herb	n/a	n/a
Li and Dao (2014)	Coelogyne pianmaensis	Orchidaceae	Yes	Tsuga spp.	Pinaceae	Tree	Forest	Present
Matias et al. (1996)	Constantia cipoensis	Orchidaceae	Yes	Vellozia piresiana, Vellozia compacta	Velloziaceae	Shrubby monocot	Outcrop	n/a
Mayo et al. (2000)	Anthurium bromelicola subsp. bromelicola	Araceae	Yes	Hohenbergia sp.	Bromeliaceae	Terr. herb	Outcrop	n/a
	Anthurium bromelicola subsp. bahiense	Araceae	Yes	Aechmea sp.	Bromeliaceae	Terr. herb	Coastal	n/a
Mesler (1975)	Ophioglossum palmatum	Ophioglossaceae	No	Sabal palmetto	Arecaceae	Palm	Forest	Present
Morris (1968)	Polystachya johnstonii	Orchidaceae	n/a	Xerophyta splendens	Velloziaceae	Shrubby monocot	Outcrop	n/a
Porembski (2003)	Polystachya microbambusa	Orchidaceae	No	Afrotrilepis pilosa	Cyperaceae	Shrubby monocot	Outcrop	n/a
	Polystachya pseudodisa	Orchidaceae	No	Afrotrilepis pilosa	Cyperaceae	Shrubby monocot	Outcrop	n/a
	Polystachya odorata var. trilepidis	Orchidaceae	Yes	Afrotrilepis pilosa	Cyperaceae	Shrubby monocot	Outcrop	n/a
	Polystachya dolichophylla	Orchidaceae	No	Afrotrilepis pilosa	Cyperaceae	Shrubby monocot	Outcrop	n/a
	Pseudolaelia vellozicola	Orchidaceae	n/a	n/a	Velloziaceae	Shrubby monocot	Outcrop	n/a
Schimper (1888)	Trichomanes polypodioides1	Hymenophyllaceae	No	n/a	n/a	Tree fern	Forest	n/a
	Zygopetalum sp.	Orchidaceae	n/a	n/a	n/a	Tree fern	n/a	n/a
Sehnem (1977)	Zygopetalum maxillare	Orchidaceae	n/a	n/a	n/a	Tree fern	n/a	n/a
	Pecluma truncorum	Polypodiaceae	n/a	n/a	n/a	Tree fern	n/a	n/a
Song et al. (2009)	Thrixspermum odoratum	Orchidaceae	Yes	Quercus bawanglingensis	Fagaceae	Tree	Forest	Present
Soto Arenas (1994)	Laelia speciosa	Orchidaceae	Yes	Quercus deserticola	Fagaceae	Tree	Forest	Absent
Tremblay et al. (1998)	Lepanthes caritensis	Orchidaceae	Yes	Micropholis guianensis	Sapotaceae	Tree	Forest	Present
Válka Alves et al. (2008)	Vriesea oligantha	Bromeliaceae	No	Vellozia spp.	Velloziaceae	Shrubby monocot	Outcrop	Present
	Epidendrum saxatile	Orchidaceae	No	Vellozia spp.	Velloziaceae	Shrubby monocot	Outcrop	Present
Van den Berg et al. (2006)	Leptotes vellozicola	Orchidaceae	Yes	Vellozia sp.	Velloziaceae	Shrubby monocot	Outcrop	n/a

Plant names follow The Plant List (2013, Version 1.1. Published on the Internet; http://www.theplantlist.org/).

n/a, not available (no information given in publication); Endemic, notes whether epiphyte species has a small distributional range; Other trees?, notes whether other potential hosts are present in the area to which publication refers.

¹A different species name was used in the original publication.