Dactylorhiza fuchsii
Dactylorhiza ´ kuehnensis - Germany.(D. majalis ´ ruthei).
Dactylorhiza ´ silvae-gabretae - Czechoslovakia.(D. fuchsii subsp. fuchsii ´ traunsteineri)

Dendrobium  (by Phil)

Dendrobium, Section Formosae(by C. Jerry Sellers) :

Dendrobium atroviolaceum

Dendrobium brymerianum
Dendrobium judithiae - Sulawesi
Dendrobium khanhoaense - Vietnam
Dendrobium latifolium = Govenia latifolia (new)
Dendrobium linguiforme

Dendrobium lichenastrum
Dendrobium moniliforme

Dendrobium miyakei

Dendrobium nebularum
Dendrobium pseudoequitans - Philippines
Dendrobium setigerum  - Philippines

Dendrobium smilieae
Dendrobium spectatissimum
Dendrobium sulawesiense - Sulawesi
Dendrobium torajaense – Sulawesi

Dendrobium thyrsiflorum

Dienia seidenfadeniana - Sumatra, New Guinea (Irian Jaya)

Disa cultivation (at RBG Kew)

Disa

Disa aequiloba - Tanzania
Disa aperata
Disa cardinalis
Disa cryptantha
Disa chimanimaniensis = Herschelia chimanimaniensis (old)
Disa cornuta
Disa ecalcarata - Monadenia ecalcarata
Disa equestris
Disa engleriana
Disa Kirstenbosch Pride = Disa uniflora x Disa cardinalis
Disa Kewensis  = Disa uniflora x Disa tripetaloides
Disa longilabris
Disa lugens Bolus var. nigrescens = Herschelia lugens var. nigrescens (old)
Disa ornithantha
Disa praecox = Herschelia praecox (old)
Disa procera -  Cape Province
Disa racemosa
Disa rungweensis
Disa satyriopsis
Disa saxicola
Disa sect. Herschelianthe (Rauschert) - gen. Herschelianthe
Disa spathulata subsp. tripartite = Disa tripartita
Disa tripetaloides
Disa ukingensis
Disa uniflora
Disa Veitchii = Disa racemosa x Disa uniflora
Disa zombica

Diuris behrii

Diuris laxiflora
Diuris longifolia
Diuris magnifica
 

Dendrophylax salie
 

Doritis pulcherrima  - Thailand
Doritis pulcherrima - Phalaenopsis esmeralda var. albiflora
Doritis pulcherrima forma coerulea D. pulcherrima var. coerulea

Drakaea glyptodon
Drakaea gracilis
Drakaea livida

Dracula (see also Pleurothallidinae)

Dracula

Dracula (species list)

Dracula adrianae  - Colombia
Dracula bella
Dracula kareniae  - Ecuador
Dracula sodiroi  - Ecuador