Nephelaphyllum is a resident of the dark damp forests floors in SE Asia. Its latin name means "Cloudy Leaf" but this description does not apply to all species in the genus, notably N tenuiflorum which is plain green. The previously mentioned N. borneense (see here), N. pulchrum and the similar N. flabellatum shown above have marvelously cryptic leaves which blend in with the background of the forest floor . The habitats of the different species are quite diverse - N. pulchrum can be found in lowland swamps while N. borneense were found in in cool lower montane forest - so there is no hard and fast rule to growing them.
Hardly considered to be a small orchid, Collabium simplex nevertheless has fantastic leaves and, true to nature of foliage orchids, rather modest bloom, hence its name.