Leucostegia immersa C. Presl, 1836
Description
Rhizome without the scales 2-15 mm in diametre, bearing scales and hairs (L. immersa Rhizome). Scales narrowed evenly towards the apex, much hairy on the inner base at least when older. Stipes pale or dark brown, 8-115 or more cm long. Lamina 6-120 cm or more cm long (L. immersa Habitus). Longest petiolules 8-40 mm long. Ultimate leaflets rhomboid, only shallowly lobed. Ultimate segments (lobes) 0.5-3 mm long. Indusium scale-like, attached at the narrow, cordate base only (sometimes the base rather broad), semicircular, 1-1.5 mm long by 1-2 mm broad (L. immersa Indusia).
Distribution
Continental Asia: India (Assam, E. Himalayas, Madras, Mysore, Nepal, Orissa, Pulney Hills, Simla, W. Ghats, many coll.); Sikkim (3 coll.); Bhutan (2 coll.); Burma (5 coll.); Northern Thailand (c. 20 coll.); Cambodia (1 coll.); Vietnam (Da Lat 1 coll.); China (Tibet 7 coll., Kwangsi 1 coll., Yunnan 24 coll., Taiwan 3 coll.).
Malesia: Malay Peninsula (Perak 2 coll.); Sumatra (Kerinci 1 coll.); Java (1 coll.); Lesser Sunda Islands (Bali 1 coll., Timor 2 coll.); Borneo (Sabah, Kinabalu 3 coll., Sarawak, Baram distr. 3 coll., Kalimantan Timur 1 coll.); Philippines (Luzon, Benguet prov. c. 10 coll., Abra prov. 1 coll., Camarines Norte 1 coll., Ilocos Norte 1 coll., Mountain prov. 2 coll.; Mindanao 6 coll.; Mindoro 2 coll.; Leyte 1 coll.; Negros 1 coll.; Samar 1 coll.); Sulawesi (7 coll.); Moluccas (Seram 2 coll., Ternate 1 coll., Tidore 1 coll.); New Guinea (Irian Jaya, Idenburg River 1 coll., Papua New Guinea, Morobe distr. 2 coll.).
Ecology
Epiphytic and terrestrial. Altitude 1000-2300 m, rarely at low altitudes.