AFRICAN

ORCHIDS

Read more of Cultivation of Rangaeris muscicola (Rchb.f.) Summerh.
Light:
1500-2500 fc. Light should be filtered or diffused, and plants should not be exposed to direct midday sun. Strong air movement should be provided at all times.
Temperatures:
Summer days average 74-79F (23-26C), and nights average 54-55F (12-13C), with a diurnal range of 19-24F (11-13C). Because of the range in habitat elevation, plants should adapt to conditions up to 6F (3C) warmer or cooler than indicated.
Humidity:
55-65% for about 2 months in late winter and early spring and again for 2-3 months in summer. Averages increase to 70-75% for the remainder of the year. Averages in the habitat may be somewhat greater than indicated in the preceding climate table, however.
Water:
There are two wet/dry cycles during the year, with a dry season in winter and early spring followed by a fairly short, 2- to 3-month wet season in late spring and early summer. This is followed by a rather short somewhat drier season in summer and then by a 3-month wet season in autumn. Cultivated plant should be watered heavily while actively growing, but they must be able to dry rather quickly after watering.
Fertilizer:
1/4-1/2 recommended strength, applied weekly when plants are actively growing. Many growers prefer to use a balanced fertilizer throughout the year; but others use a high-nitrogen fertilizer from spring to midsummer, then switch to one high in phosphates in late summer and autumn.
Rest period:
Winter days average 69-70F (21C), and nights average 51-53F (11-12C), with a diurnal range of 17-18F (9-10C). Growers are reminded that these plants should adapt to conditions up to 6F (3C) warmer or cooler than indicated in the preceding climate table. Water should be reduced for cultivated plants during the winter dry season, but plants should not be allowed to remain completely without water for long periods. Occasional early morning mistings between infrequent light waterings should provide sufficient moisture in most growing areas. Isobyl & Eric La Croix (1997) reported that plants should be kept drier in winter. Water should be reduced for plants during the secondary dry season in summer, but plants should not be allowed to become as dry as during the more severe winter dry period. Fertilizer should be reduced or eliminated when water is reduced.
Growing media:
Isobyl & Eric La Croix (1997) reported that these plants may be gown mounted, but growth is more vigorous if they are grown in a container. If grown in a container, a coarse mix is necessary.
References:
This information is quoted from a Charles and Margaret Baker culture sheet, with permission from Troy Meyers This email address is being protected from spambots. You need JavaScript enabled to view it.. The entire culture sheet can be obtained by subscription from Orchid Species Culture, http://orchidculture.com











Rangaeris longicaudata (Rolfe) Summerh. in J.Hutchinson & J.M.Dalziel, Fl. W. Trop. Afr. 2: 449 (1936).
Homotypic Synonyms:
Mystacidium longicaudatum Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 170 (1897).
Description:
Stems long, slender. Leaves 6-12 x 1-1.5 cm J narrowly oblong. Inflorescences 8-15 cm long, 3- to 4-flowered. Flowers white. Pedicel and ovary 5-6 mm long; bracts 12-14 mm lang. Sepals, petals and lip all 20-35 mm long, lanceolate, acuminate, the edges of roe lip curled back. Spur 15-19 cm lang. Column 6 mm lang.
Habitat:
?
Cultivation:
As given for the genus.
Distribution:
Ivory Coast to Gabon
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 17.03.2017; http://apps.kew.org/wcsp/
Images:
Click on each image to see a larger version.










Rangaeris trilobata Summerh., Bull. Misc. Inform. Kew 1936: 229 (1936).
Homotypic Synonyms:
Solenangis trilobata (Summerh.) R.Rice, Oasis 3: 14 (2006).
Description:
Stems long, narrow; roots slender, along the stem. Leaves 4-8 x 1-2 cm, narrowly oblong-lanceolate, acute, set along the stem 2-5 cm apart. Inflorescences 4-12 cm long, few-flowered. Sepals salmon pink, petals and lip white. Sepals and petals 6.5-8.5 mm long. Lip 5-9 mm long, trilobed, the midlobe linear or lanceolate, acuminate, the side lobes much shorter, suborbicular, with wavy edges.
Habitat:
?
Cultivation:
As given for the genus
Distribution:
S. Nigeria to WC. Trop. Africa
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 17.03.2017; http://apps.kew.org/wcsp/
Images:
Click on each image to see a larger version.










Rangaeris muscicola (Rchb.f.) Summerh. in J.Hutchinson & J.M.Dalziel, Fl. W. Trop. Afr. 2: 450 (1936).
Homotypic Synonyms:
Aeranthes muscicola Rchb.f., Flora 48: 190 (1865).
Epidorkis muscicola (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 660 (1891).
Mystacidium muscicola (Rchb.f.) T.Durand & Schinz, Consp. Fl. Afric. 5: 54 (1894).
Listrostachys muscicola (Rchb.f.) Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 158 (1897).
Aerangis muscicola (Rchb.f.) Schltr., Bot. Jahrb. Syst. 53: 599 (1915).
Heterotypic Synonyms:
Angraecum englerianum Kraenzl., Bot. Jahrb. Syst. 7: 333 (1886).
Listrostachys engleriana (Kraenzl.) Kraenzl., Bot. Jahrb. Syst. 19: 254 (1894).
Mystacidium batesii Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 172 (1897).
Angraecum batesii (Rolfe) Schltr., Westafr. Kautschuk-Exped.: 283 (1900), nom. illeg.
Aerangis batesii (Rolfe) Schltr., Bot. Jahrb. Syst. 53: 599 (1915).
Aerangis engleriana (Kraenzl.) Schltr., Bot. Jahrb. Syst. 53: 599 (1915).
Aerangis falcifolia Schltr., Bot. Jahrb. Syst. 53: 598 (1915).
Angraecum solheidii De Wild., Bull. Jard. Bot. État Bruxelles 5: 191 (1916).
Listrostachys solheidii De Wild., Bull. Jard. Bot. État Bruxelles 5: 191 (1916).
Aerangis mixta Schltr., Beih. Bot. Centralbl. 36(2): 122 (1918).
Aerangis solheidii (De Wild.) Schltr., Beih. Bot. Centralbl. 36(2): 123 (1918).
Listrostachys floribunda Rolfe, Bull. Misc. Inform. Kew 1918: 236 (1918).
Aerangis floribunda (Rolfe) Summerh., Bull. Misc. Inform. Kew 1932: 509 (1932).
Description:
A short monopodial epiphyte with thick roots at the base. Pseudobulb/stem: Usually no more than 2.4 in. (6 cm) long. The short stem is upright and is concealed by the distichous, overlapping, longitudinally folded leaf bases. Leaves: 2.4-8.0 in. (6-20 cm) long by 0.2-0.5 in. (0.6-1.2 cm) wide. Four to eleven narrowly strap-shaped to linear, longitudinally folded leaves with closely overlapping bases and unequal rounded lobes at the apex are arranged in 2 rows to produce a fanlike shape on each stem. They are green, rather stiff, and somewhat recurved. Inflorescence: 4-12 in. (10-30 cm) long, with a very short peduncle. One or two inflorescences arise from the lower leaf axils and may be rather erect or arch away from the stem. Flowers are arranged in 2 rows along the raceme, each blossom with a black floral bract that is 0.1-0.4 in. (0.3-0.9 cm) long and carried on a slender pedicellate ovary that is 1 in. (2.5 cm) long. Flowers: 10-20 per inflorescence. The sweetly scented flowers are white but become apricot-colored with age and have a pinkish orange spur. The spreading blossoms, which are variable in size, have lanceolate, sharply pointed sepals that are 0.3-0.4 in. (0.7-0.9 cm) long by 0.1-0.2 in. (0.25-0.4 cm) wide. The dorsal sepal is erect, while the slightly narrower lateral sepals are obliquely descending at the base but curve more or less downward along their length so that their tips may sometimes be almost parallel. The elliptic or lanceolate petals are sharply pointed, somewhat reflexed, and 0.3 in. (0.65-0.8 cm) long by 0.06-0.1 in. (0.15-0.3 cm) wide. The broadly egg-shaped lip is 0.3-0.4 in. (0.65-0.9 cm) long by 0.2-0.3 in. (0.4-0.7 cm) wide and tapers to a sharply pointed tip that curves downward so that the tip is held in a more or less pendent position but may at times continue curving so that the tip projects toward the rear. There is a long, very slender, pendent spur at the base of the lip that is 2.2-3.3 in. (5.5-8.5 cm) long and may be straight or slightly S-shaped. The column is 0.1-0.2 in. (0.3-0.45 cm) long.
Habitat:
This orchid is widely distributed, with plants reported from Cameroon, Congo, Ghana, Guinea, Ivory Coast Kenya, Liberia, Malawi, Mali, Mozambique, Nigeria, sierra Leone, South Africa, Tanznia, Uganda, Zaire, Zambia, and Zimbabwe. Plants are found in various habitats from evergreen forests to woodlands at 1950-7200 ft. (600-2200 m), and may sometimes be found on rocks on hilltops. In Kenya, plants grow mostly as epiphytes in humid forests, usually growing among mosses on well-shaded branches. They are known from the warmer forests in central Kenya, including the Ngong Hills, the area around Nairobu, Nadau Hill near Kitui, Kericho and Mt. Elgon, growing at 3950-7200 ft. (1200-2200 m).
Cultivation:
Read more of Cultivation of Rangaeris muscicola (Rchb.f.) Summerh.
References:
la Croix, I. and E. la Croix. 1997. African orchids in the wild and in cultivation. Timber Press, Portland, OR. Stewart, J. and B. Campbell. 1996. Orchids of Kenya. Timber Press, Portland, OR. Tropicos W3, Missouri Botanical Garden, Nomenclatural Data Base, July 20, 2004; WCSP (2017). 'World Checklist of Selected Plant Families. 17.03.2017; http://apps.kew.org/wcsp/
Images:
Click on each image to see a larger version.

Habitat/In situ           Habitat/In situ           Habitat/In situ Habitat/In situ Habitat/In situ
rangaeris muscicola 01 rangaeris muscicola 02 Rangaeris muscicola 01 Rangaeris muscicola 02 Rangaeris muscicola 03
Photograph©Bart Wursten. Image used with kind permission. Photograph©Bart Wursten. Image used with kind permission. Photograph© Nicholas Case
Wightman Image used with kind permission.
Photograph© Nicholas Case
Wightman Image used with kind permission.
Photograph© Nicholas Case
Wightman Image used with kind permission.