Guarianthe hennisiana Examples of my digital images

Houlletia tigrinaAs I have been photographing orchids for around 30 years I have lots of pictures! Many are 35mm slides - mainly on Kodak film - but more recently I have been taking digital photographs. Nearly 3,000 of the slides have been scanned as 'jpg' images, and there are over 50,000 digital photographs. They represent over 4,500 species in over 630 genera (plus around 100 hybrid genera, which are listed here but there are no photographs).

Houlletia tigrinaThere are over 8,500 photographs on this website of species in the genera shown below. Maybe it will help you identify an orchid. Since starting this project I have obtained photos in even more genera so will be adding those as I find the time. So come back later if you are interested in a particular genus. If you would like a larger resolution photo or have any questions or corrections, please contact me.

Houlletia tigrinaI find it confusing that large orchid genera are maintained which have species where the plant habit and features of the flower vary so widely. Examples of large encompassing genera are Dendrobium, Cattleya, Epidendrum and Pleurothallis. I believe in a narrow generic concept so that all species in the one genus have similar plant morphology and floral characteristics. My naming convention therefore follows published authors who have used this approach. However, I have mentioned other generic names under which the species may be known.

Houlletia tigrinaDue to space restrictions species illustrated in the links below are represented by only one or two photographs. I have tried to include a close-up view, plant habit or variation in flower form or colour. In most cases I have other photographs not shown here.

Aa
Abdominea
Acacallis
Acampe
Acanthephippium
Acianthella
Acianthera
Acianthus
Acineta
Acinopetala
Acostea
Acriopsis
Acronia
Acrorchis
Ada
Adelopetalum
Adeneleuterophora
Adenoncos
AŽrangis
AŽranthes
AŽrides
Aeridostachya
Aethorhyncha

Aglossorrhyncha
Agrostophyllum
Alamania
Alaticaulia
Alatiglossum
Altensteinia
Amesiella
Amitostigma
Anacamptis
Anacheilium
Anathallis
Ancipitia
Ancistrochilus
Ancistrorhynchus
Andinia
Angraecum
Anguloa
Ania
Anisopetala
Anneliesia
Anoectochilus
Ansellia
Anthogonium
Aphyllorchis
Apoda-prorepentia
Aporodes
Aporum
Apostasia
Appendicula
Arachnis
Arachnorchis
Areldia

Arpophyllum
Arthrochilus
Artorima
Arundina
Ascidieria
Ascocentropsis
Ascocentrum
Ascoglossum
Aspasia
Aulosepalum
Australorchis
Baptistonia
Barbosella
Barkeria
Bartholina
Baskervilla
Benzingia
Bifrenaria
Blepharochilum
Bletia
Bletilla
Bonatea
Bonniera
Brachionidium
Brachtia
Brachypeza
Braemia
Brasilaelia
Brasilidium
Brasiliorchis
Brassavola
Brassia
Brevilongium
Bromheadia
Broughtonia
Brownleea
Bryobium
Buccella
Bulbophyllum
Bunochilus
Byrsella
Cadetia
Caladenia
Calanthe
Callista
Callostylis
Calochilus
Calyptrochilum
Camaridium
Campanulorchis
Campylocentrum
Carenidium
Carparomorchis
Catasetum
Cattleya
Cattleyella
Cattleyopsis
Caucaea
Caularthron
Cepobaculum
Ceraia
Ceratobium
Ceratocentron
Ceratochilus
Ceratostylis
Cestichis
Chamaeangis
Chaubardia
Chaubardiella
Cheirostylis
Chelonistele
Chelyorchis
Chiloglottis

Chiloschista
Chondrorhyncha
Chondroscaphe
Christensonella

Chromatotriccum
Chysis
Chytroglossa

Cirrhopetalum
Cischweinfia

Claderia
Cleisocentron
Cleisostoma

Clowesia
Cochleanthes
Cochlioda
Coelandria
Coelia
Coelogyne
Cohniella
Coilostylis
Colombiana
Comparettia
Condylago
Coppensia
Corybas
Corymborkis
Corysanthes
Cranichis
Crepidium
Cribbia
Crocodeilianthe
Crossoglossa
Cryptarrhena
Cryptocentrum
Cryptostylis
Cuitlauzina
Cyanicula
Cyclopogon
Cycnoches
Cylindrolobus
Cymbidiella
Cymbidium
Cynorkis
Cypripedium
Cyrtochiloides
Cyrtochilum
Cyrtopodium
Cyrtorchis
Cyrtostylis
Dactylorhiza
Davejonesia
Dendrobium
Dendrochilum
Dendrophylax
Diadenium
Dichaea
Dichopus
Dichromanthus
Dienia
Dilochia
Dimerandra
Dimorphorchis
Dinema
Diodonopsis
Diplocaulobium
Diplodium
Dipodium
Disa
Distichorchis
Diuris
Dockrillia
Dossinia
Dracontia
Dracula
Drakaea
Drakonorchis
Dresslerella
Dressleria
Dryadella
Drymoda
Dungsia
Durabaculum
Dyakia
Earina
Effusiella
Eleutheroglossum
Elleanthus
Elongatia
Eloyella
Elythranthera
Embreea
Empusa
Empusella
Encyclia
Ephippium
Epiblastus
Epidendrum
Epigeneium
Epipactis
Epipogium
Epistephium
Eria
Ericksonella
Eriochilus
Eriopsis
Erycina
Erythrodes
Esmeralda
Euanthe
Euchile
Eulophia
Eulophiella
Euryblema
Eurycaulis
Eurystyles
Fernandezia
Fissia
Flickingeria
Frondaria
Fruticicola
Galeandra
Galearis
Galeola
Galeottia
Gastrochilus
Gastrodia
Gastrorchis
Gastrosiphon
Geesinkorchis
Genoplesium
Geodorum
Glomera

Glossodia
Glossorhyncha

Gomesa
Gomphichis
Gongora
Goodyera

Govenia
Gracielanthus

Grammangis
Grammatophyllum

Grandiphyllum
Grastidium

Grobya
Grosourdya
Guarianthe
Habenaria

Hadrolaelia
Hapalochilus
Haraella
Helcia
Helleriella
Hemipilia
Herminium
Hetaeria
Heteranthocidium
Heterotaxis
Hintonella
Hispaniella
Hoffmannseggella

Hofmeisterella
Holcoglossum
Homalopetalum
Hormidium
Houlletia
Huntleya
Hyalosema
Hygrochilus
Hymenochilus
Inobulbon
Inti
Ionopsis
Isabelia
Isochilus
Ixyophora

Jacquiniella
Jejewoodia
Jonesiopsis
Jumellea
Kefersteinia
Kerigomnia
Kingidium
Kleberiella
Koellensteinia
Kraenzlinella

Lacaena
Laelia
Lanium
Latouria
Lectandra
Leioanthum
Leochilus

Lepanthes
Lepanthopsis
Leptoceras
Leptotes
Leucohyle
Lindleyalis
Linguella
Liparis
Listrostachys
Lockhartia
Loddigesia
Lophiaris
Ludisia
Lueddemannia
Luerella
Luisia

Luzama
Lycaste
Lycomormium
Lyperanthus
Maccraithea
Macodes
Macradenia
Macroclinium
Macropodanthus
Malaxis
Malleola
Mapinguari

Masdevallia
Maxillaria
Maxillariella
Mediocalcar
Megaclinium
Megema
Meiracyllium
Menezesiella
Mesospinidium
Mexicoa
Mexipedium
Microchilus
Microcoelia
Microepidendrum
Microlaelia
Micropera
Microterangis
Microtis

Miltonia
Miltonioides
Miltoniopsis
Mobilabium
Monanthos
Mormodes
Mormolyca
Muscarella
Mycaranthes
Myoxanthus

Myrmechila
Myrmecophila
Mystacidium
Mystacorchis
Nabaluia
Nageliella
Nanodes
Nemacianthus
Neobathiea
Neobenthamia

Neodryas
Neofinetia
Neolauchea
Neolehmannia
Neomoorea
Neoruschia

Neottia
Nephelaphyllum
Nervilia

Neuwiedia
Nidema
Nitidobulbon

Nitidocidium
Notylia
Oberonia

Octarrhena
Octomeria
Odontoglossum
Oeceoclades
Oeonia
Oeoniella
Oeorchis
Oerstedella
Oestlundia
Oligochaetochilus
Oliveriana

Oncidium
Oncophyllum
Ophidion
Ophrys
Orchis
Oreorchis
Orleanesia
Ornithidium
Ornithocephalus
Ornithochilus
Ornithophora
Osmoglossum
Otochilus
Oxyglossellum
Oxysepala
Oxystophyllum
Pabstia
Pabstiella
Pachyphyllum
Palumbina
Panarica
Panisea
Pantlingia
Paphinia

Paphiopedilum
Papilionanthe
Papillilabium
Papulipetalum
Paraphalaenopsis
Pedilochilus
Pedilonum
Pelatantheria
Pelexia
Peltopus
Penducella
Peristeranthus
Peristeria
Peristylus
Pescatorea
Petalochilus
Phaius

Phalaenopsis
Pharochilum
Pheladenia
Pholidota

Phragmipedium
Phreatia
Phymatidium
Phymatochilum
Physosiphon
Physothallis
Pinalia

Platanthera
Platyrhiza
Platystele
Plectorrhiza
Plectrelminthus
Plectrophora
Pleione
Pleurothallis
Pleurothallopsis
Plocoglottis
Plumatichilos
Podangis
Podochilus
Pollardia

Polychilos
Polystachya
Pomatocalpa
Ponera
Ponerorchis
Ponthieva
Porphyrodesme
Porroglossum

Prasophyllum
Preptanthe
Prescottia
Promenaea
Prosthechea
Psychilis
Psychopsiella
Psychopsis
Psygmorchis

Pteroceras
Pterostylis
Pterygodium
Pyrorchis
Rangaeris
Ranorchis
Regalia
Reichantha
Renanthera
Renantherella

Restrepia
Restrepiella
Restrepiopsis
Rhetinantha
Rhinerrhiza
Rhinocidium

Rhipidoglossum
Rhyncholaelia

Rhynchopera
Rhynchostele
Rhynchostylis
Robiquetia
Rodrigoa

Rodriguezia
Rodrigueziella
Rodrigueziopsis

Rossioglossum
Rubellia
Rudolfiella
Saccolabiopsis
Sacoila

Sadokum
Salpistele

Sarcinula
Sarcocadetia

Sarcochilus
Sarcoglottis
Sarcoglyphis
Satyrium
Sauvetrea

Sayeria
Scaphosepalum

Scaphyglottis
Scelochilus
Schiedeella
Schistotylus
Schoenorchis
Schomburgkia
Scuticaria
Sedirea
Seidenfadenia
Selenipedium
Seraphyta
Serapias
Serpenticaulis
Sievekingia

Sigmatostalix
Simpliglottis
Smitinandia
Sobennikoffia
Sobralia
Solenidium
Sophronitella
Sophronitis
Soterosanthus
Spathoglottis

Specklinia
Spectaculum
Speculantha
Sphyrarhynchus
Spilorchis
Spilotantha
Spiranthes
Stamnorchis
Stanhopea

Staurochilus
Stegostyla
Stelis
Stellilabium
Stenia
Stenoglottis
Stenorrhynchos
Stenotyla
Stereochilus
Stichorkis
Stilbophyllum
Streptoura
Styloglossum
Suavetrea
Sudamerlycaste
Sullivania
Sylphia
Symphyglossum
Systeloglossum
Taeniophyllum
Tainia
Talpinaria
Taprobanea
Taurantha
Telipogon
Tetrabaculum
Tetramicra
Thecopus
Thecostele

Thelasis
Thelychiton
Thelymitra
Thrixspermum
Thunia
Ticoglossum

Tolumnia
Trachyrhizum
Trias
Tribulago
Trichocentrum
Trichoceros
Trichoglottis
Trichopilia

Trichosalpinx
Trichotosia
Tridactyle
Trigonidium
Tripudianthes
Trisetella
Tropilis
Trudelia
Tuberolabium
Unciferia
Urochilus

Vanda
Vandopsis
Vanilla

Vappodes
Vitekorchis
Warczewiczella
Xenosia
Xylobium
Zahleria
Zelenkoa
Zeuxine
Zhukowskia
Zootrophion
Zygopetalum
Zygostates

Hybrids
AŽrides
Aeridovanda
Angraecum
Anguloa
Angulocaste
Ascocenda
Ascofinetia
Bapticidium
Barkeria
Brassocattleya
Brassolaeliocattleya
Bulbophyllum
Caladenia
Calanthe
Catasetum
Cattleya
Cattlianthe
Catyclia
Chilosimpliglottis
Chysis
Cirrhopetalum
Clowesetum
Clowesia
Cochlezella
Coelogyne
Cycnoches
Cycnodes
Cymbidium
Cypripedium
Dendrobium
Devereuxara
Disa
Dockrillia
Doritaenopsis
Doritis
Dracula
Dracuvallia
Encyclia
Epicatanthe
Epicattleya
Epicyclia
Epidendrum
Eulophia
Fredclarkeara
Gastrophaius
Grammatophyllum
Guarianthe
Habenaria
Hadrolaelia
Hoffmannseggella
Howeara
Laelia
Laeliocattleya
Lycaste
MaClellanara
Macradenia
Masdevallia
Maxillaria
Miltassia
Miltoniopsis
Mokara
Monnierara
Mormodia
Neostylis
Odontioda
Odontocidium
Oncidium
Otostele
Paphiopedilum
Papilionanthe
Paraphalaenopsis
Pararanthera
Peristerchilus
Phaiocalanthe
Phaiocymbidium
Phaius
Phalaenopsis
Phragmipedium
Plectochilus
Plectorrhiza
Polystachya
Porterara
Potinara
Prosthechea
Pterostylis
Rechingerara
Renanstylis
Renanthera
Renetia
Restrepia
Rhynchobrassoleya
Rhynchocentrum
Rhynchorides
Rhynchosophorocattleya
Rhynchovanda
Rumrilla
Sarcochilus
Sarconopsis
Sartylis
Scelorettia
Sheena
Sobralia
Sophrocattleya
Sophrolaeliocattleya
Sophronitis
Spathoglottis
Stanhopea
Taurodium
Thelychiton
Thunia
Thwaitesara
Trichocentrum
Vanda
Vandachostylis
Vappabaculum
Vascostylis
Warczewiczella
Wilsonara
Zelemnia
Zygocolax
Zygoneria
Zygonisia
Zygopetalum