Angraecum

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Orchidaceae
Subfamilia: Epidendroideae
Tribus: Vandeae
Subtribus: Angraecinae
Genus: Angraecum
Overview of species (224)
Top · a · b · c · d · e · f · g · h · i · j · k · l · m · n · o · p · q · r · s · t · u · v · w · x · y · z
a

A. acutipetalum – A. affine – A. alleizettei – A. aloifolium – A. ambrense – A. amplexicaule – A. ampullaceum – A. andasibense – A. andringitranum – A. angustipetalum – A. angustum – A. ankeranense – A. aporoides – A. appendiculatum – A. appendiculoides – A. arachnites – A. astroarche – A. aviceps
b

A. bancoense – A. baronii – A. bemarivoense – A. bicallosum – A. birrimense – A. biteaui – A. borbonicum – A. brachyrhopalon – A. bracteosum – A. breve – A. brevicornu
c

A. cadetii - A. calceolus – A. caricifolium – A. caulescens – A. chaetopodum – A. chamaeanthus – A. chermezonii – A. chimanimaniense – A. cilaosianum – A. claessensii – A. clareae – A. clavigerum – A. compactum – A. compressicaule – A. conchiferum – A. conchoglossum – A. cordemoyi – A. coriaceum – A. cornigerum – A. cornucopiae – A. corrugatum – A. corynoceras – A. costatum – A. coutrixii – A. crassifolium – A. crassum – A. cribbianum – A. cucullatum – A. cultriforme – A. curnowianum – A. curvicalcar – A. curvicaule – A. curvipes
d

A. danguyanum – A. darainense – A. dasycarpum – A. dauphinense – A. decaryanum – A. decipiens – A. dendrobiopsis – A. didieri – A. distichum – A. dives – A. dollii – A. drouhardii – A. dryadum – A. dupontii
e

A. eburneum – A. egertonii – A. eichlerianum – A. elephantinum – A. elliotii – A. equitans – A. erectum – A. expansum
f

A. falcifolium – A. ferkoanum – A. filicornu – A. firthii – A. flavidum – A. floribundum – A. florulentum
g

A. geerinckianum – A. geniculatum – A. gereauanum – A. germinyanum – A. gracile
h

A. hermannii – A. humbertii – A. humblotianum – A. humile – A. huntleyoides
i

A. imerinense – A. implicatum – A. inapertum – A. infundibulare
j

A. jeannineanum
k

A. keniae – A. kranzlinianum
l

A. lanceolatum – A. lecomtei – A. leonis – A. letouzeyi – A. liliodorum – A. linearifolium – A. lisowskianum – A. litorale – A. longicalcar – A. longicaule
m

A. madagascariense – A. magdalenae – A. mahavavense – A. mauritianum – A. meirax – A. melanostictum – A. metallicum – A. microcharis – A. minus – A. minutum – A. moandense – A. modicum – A. mofakoko – A. moratii – A. multiflorum – A. multinominatum – A. muscicola – A. musculiferum – A. myrianthum
n

A. nanum
o

A. obesum – A. oblongifolium – A. obversifolium – A. ochraceum – A. oeonioides – A. oliveirae – A. onivense
p

A. palmicola – A. palmiforme – A. panicifolium – A. parvulum – A. patens – A. pauciramosum – A. pectinatum – A. penzigianum – A. pergracile – A. perhumile – A. perparvulum – A. petterssonianum – A. peyrotii – A. pingue – A. pinifolium – A. platycornu – A. podochiloides – A. popowii – A. potamophilum – A. praestans – A. protensum – A. pseudodidieri – A. pseudofilicornu – A. pseudopetiolatum – A. pterophyllum – A. pumilio – A. pusillum – A. pyriforme
r

A. ramosum – A. reygaertii – A. rhizanthium – A. rhizomaniacum – A. rhynchoglossum – A. rigidifolium – A. rostratum – A. rubellum – A. rutenbergianum
s

A. sacciferum – A. sacculatum – A. salazianum – A. sambiranoense – A. sanfordii – A. scalariforme – A. scottianum – A. sedifolium – A. serpens – A. sesquipedale – A. sesquisectangulum – A. setipes – A. sinuatiflorum – A. sororium – A. spectabile – A. spicatum – A. stella-africae – A. sterrophyllum – A. stolzii – A. striatum – A. subcordatum
t

A. tamarindicola – A. tenellum – A. tenuifolium – A. tenuipes – A. tenuispica – A. teres – A. teretifolium – A. triangulifolium – A. trichoplectron
u

A. umbrosum – A. undulatum – A. urschianum
v

A. verecundum – A. vesiculatum – A. vesiculiferum – A. viguieri – A. viride – A. viridiflorum
x

A. xylopus
z

A. zaratananae – A. zeylanicum
Name

Angraecum Bory, Voy. îles Afrique 1: 359 (1804)

Type species: Angraecum eburneum Bory, Voy. îles Afrique 1: 359 (1804)

Synonymy

Heterotypic
Angorchis Thouars, Nouv. Bull. Sci. Soc. Philom. Paris 19: 318 (1809), nom. illeg.
Aerobion Kaempf. ex Spreng., Syst. Veg. 3: 679 (1826)
Macroplectrum Pfitzer in H.G.A.Engler & K.A.E.Prantl (eds.), Nat. Pflanzenfam. 2(6): 214 (1889)
Bonniera Cordem., Rev. Gén. Bot. 11: 416 (1899)
Lepervenchea Cordem., Rev. Gén. Bot. 11: 415 (1899)
Pectinaria (Benth.) Cordem., Rev. Gén. Bot. 11: 412 (1899)
Ctenorchis K.Schum., Just's Bot. Jahresber. 27(1): 467 (1901)
Monixus Finet, Bull. Soc. Bot. France 54(9): 15 (1907)
Dolabrifolia (Pfitzer) Szlach. & Romowicz, Richardiana 7: 54 (2007)

Distribution
Native distribution areas:

Africa
East Tropical Africa
Kenya, Tanzania, Uganda.
Northeast Tropical Africa
Ethiopia, Socotra, Somalia.
South Tropical Africa
Angola, Malawi, Mozambique, Zambia, Zimbabwe.
Southern Africa
Cape Provinces, KwaZulu-Natal, Northern Provinces, Swaziland.
West Tropical Africa
Benin, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sierra Leone, Togo.
West-Central Tropical Africa
Burundi, Cameroon, Central African Republic, Congo, Equatorial Guinea, Gabon, Gulf of Guinea Islands, Rwanda, Zaire.
Western Indian Ocean
Aldabra, Comoros, Madagascar, Mauritius, Rodrigues, Réunion, Seychelles.
Asia-Tropical
Indian Subcontinent
Sri Lanka.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Bory de Saint-Vincent, J.B.G.M. 1804. Voyage dans les Quatre Principales Iles des mers d'Afrique. 1: 1–412. Gallica Reference page.
Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (eds.) 2014. Genera Orchidacearum Volume 6: Epidendroideae (Part three); page 358 ff., Oxford: Oxford University Press. ISBN 978-0-19964-651-7

Links

Govaerts, R. et al. 2019. Angraecum in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 March 15. Reference page.
Govaerts, R. et al. 2019. Angraecum in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 March 15. Reference page.
International Plant Names Index. 2019. Angraecum. Published online. Accessed: 15 March 2019.
The Plant List 2013. Angraecum in The Plant List Version 1.1. Published on the internet. Accessed: 2019 March 15.
Tropicos.org 2019. Angraecum. Missouri Botanical Garden. Published on the internet. Accessed: 2019 March 15.

Vernacular names

azərbaycanca: Anqrekum
日本語: アングレカム属
перем коми: Ангрекум
коми: Ангрекум
олык марий: Ангрекум
кырык мары: Ангрекум
русский: Ангрекум
удмурт: Ангрекум

The genus Angraecum, abbreviated as Angcm in horticultural trade, common name Angrek (Indonesian and Malay) or comet orchid, contains about 220 species.

Description

They are quite varied vegetatively and florally and are adapted to dry tropical woodland habitat and have quite fleshy leaves as a consequence. Most are epiphytes, but a few are lithophytes.

The long-lasting flowers are racemose and grow from the leaf axils. They are mostly white, but a few are yellow, green or ochre. They all have a long spur at the back of the labellum (lip).

In the case of Angraecum sesquipedale, a species from Madagascar, on observing the 30 centimetres (12 in) spur in the lip, Charles Darwin made the hypothesis that, since the nectar was at the bottom of the spur, a pollinator must exist with a tongue at least that long. Otherwise the orchid could never be pollinated. At the time, he was not believed. However, in 1903, the predicted pollinator was discovered, a hawk moth then named Xanthopan morganii praedicta ("praedicta" meaning "the predicted one"). It has an appropriately long proboscis. The specific name sesquipedale means "one foot and a half", referring to the length of the spur. This is an example of mutual dependence of an orchid and a specific pollinator.
Distribution

Tropical Africa and Madagascar contain the majority of the genus with one outlier found on Sri Lanka, and three species once thought to belong to the genus in Japan and the Philippines. But these orchids can also be found on the Comoros, the Seychelles, and the Mascarenes. They occur between sea level and 2,000 metres (6,600 ft) in humid regions.
Angraecum conservation

Many species of Angraecum orchid are considered to be at risk of extinction in the wild and are protected from international trade under CITES. The genus Angraecum is listed as one of the top conservation priorities by the International Union for Conservation of Nature and Natural Resources (IUCN) Orchid Specialist Group. Many of the species, such as Angraecum sororium, are endemic to Madagascar and are threatened from over collecting, loss of hawkmoth pollinators, habitat fragmentation, and fire.[1]
Growing Angraecums

Like all other orchids it is best to water in the mornings to avoid fungal rot due to overnight dampness. Feeding as per other orchids and similar light conditions: in humid and hot regions (sub tropical) feed fortnightly during growing season (Summer) with a certified orchid fertiliser following directions on packet, weaker solutions are also okay if you're worried. In summer water weekly or more depending on situation. Angraecums flower best when in a lighter position. Keep out of direct sunlight as this can damage (and eventually kill) the plant. Most Angraecums will have their leaves for a number of years so any sun burn spots are ugly for a significant period and also may expose your plant to disease. In indirect sunlight the Angraecums will reward you with blooms and attractive growth.

Angraecum Veitchii: a very rewarding orchid. In indirect light and watered/fed regularly this plant will produce blooms annually (usually in late Winter to Spring - for Australia this occurs in August). The flowers last a while if kept in a sheltered position and their strong heady fragrance is delightful. They only release their perfume at night. Flowers are large (4–9 centimetres (1.6–3.5 in) across), waxy, white to greenish cream in colour and borne on stems of seven to ten depending on the faithfulness of your fertilising, watering, and indirect light provision. The leaves are large, thick straps that alternately fan out from a central (monopodal) stem. Pups (keikis) form at the base of the stem and can either be divided from the parent plant once they have at least three roots of their own or alternatively, left on the plant these will make a stunning specimen as when mature will produce blooms with the parent plant - many award-winning angraecum veitchiis are grown as such. In the right conditions these orchids are healthy and require little attention. As they are epiphytes the potting mixture should be loose and free draining. Prolific roots are formed from the base and also amongst the lower half of the foliage. These can be troublesome when moving the plant. Once your angraecum is big it is best to pot it in a heavy terracotta pot or place a brick in the bottom of the pot in order to ensure the plant does not get top heavy and risk snapping when blown over in the wind, especially since they flower during the windier times of the year. When watering a good soaking with a hose or watering-can is best (not just a misting from a spray gun) as this helps to flush away any salts from fertilisers that may be present in the potting mixture and also thoroughly wets the plant. Make sure the roots halfway up the stem get a soaking too, not just the potted roots.
Hybrids

Angraecum Alabaster - A. eburneum x A. Veitchii - Kirsch, 1960.
Angraecum Amazing Grace - A. florulentum x A. magdalenae - Takimoto, 1993.
Angraecum Andromeda - A. North Star x A. compactum - Woodland, 2004.
Angraecum Appalachian Star - A. sesquipedale x A. praestans - Breckinridge, 1992.
Angraecum Argonaut - A. Longiscott x A. longicalcar - Hoosier, 2006.
Angraecum Cesária Évora - A. distichum x A. podochiloides - Knecht (Glicenstein), 2013.
Angraecum Christmas Star - A. Alabaster x A. eburneum - Kirsch, 1975.
Angraecum Clare Sainsbury - A. Lady Lisa x A. scottianum - Stewart, 1994.
Angraecum Crestwood - A. Veitchii x A. sesquipedale - Crestwood, 1973.
Angraecum Crystal Star - A. rutenbergianum x A. magdalenae - Pulley, 1989.
Angraecum Cuculena - A. cucullatum x A. magdalenae - Hillerman, 1989.
Angraecum Dianne's Darling - A. sesquipedale x A. Alabaster - Yarwood, 2000.
Angraecum Eburlena - A. eburneum x A. magdalenae - Hillerman, 1984.
Angraecum Eburscott - A. scottianum x A. eburneum - Hillerman, 1982.
Angraecum Giryvig - A. eburneum subsp. Giryamae x A. viguieri - Hillerman, 1986.
Angraecum Hillerman's Last - A. leonis x A. eburneum subsp. Superbum - Sweeney, 1999.
Angraecum Lady Lisa - A. scottianum x A. magdalenae - Williams, 1977.
Angraecum Lemförde White Beauty - A. magdalenae x A. sesquipedale - Lemförder Orch., 1984.
Angraecum Longibert - A. eburneum subsp. Superbum x A. humbertii - Hillerman, 1983.
Angraecum Longilena - A. longicalcar x A. magdalenae - Hillerman, 2004.
Angraecum Longiscott - A. eburneum subsp. Superbum x A. scottianum - Hillerman, 1982.
Angraecum Malagasy - A. sesquipedale x A. sororium - Hillerman, 1983.
Angraecum Memoria George Kennedy - A. eburneum subsp. Giryamae x A. eburneum subsp. Superbum - Nail, 1981.
Angraecum Memoria Mark Aldridge - A. sesquipedale x A. eburneum subsp. Superbum - Timm, 1993.
Angraecum North Star - A. sesquipedale x A. leonis - Woodland, 2002.
Angraecum Ol Tukai - A. eburneum subsp. superbum x A. sesquipedale - Perkins, 1967.
Angraecum Orchid Jungle - A. eburneum x A. praestans - Fennell, 1979.
Angraecum Orchidglade - A. sesquipedale x A. eburneum subsp. giryamae, J.& s., 1964.
Angraecum Rose Ann Carroll - A. eichlerianum x A. sesquipedale - Johnson, 1995.
Angraecum Ruffels - A. Eburlena x A. magdalenae - Hoosier, 2006.
Angraecum Scotticom - A. scottianum x A. eburneum subsp. Superbum - Hillerman, 1982.
Angraecum Sesquibert - A. sesquipedale x A. humbertii - Hillerman, 1982.
Angraecum Sesquivig - A. viguieri x A. sesquipedale - Castillon, 1988.
Angraecum Sorodale - A. sororium x A. magdalenae - RHS, 2005.
Angraecum Star Bright - A. sesquipedale x A. didieri - H.& R., 1989.
Angraecum Stephanie - A. Veitchii x A. magdalenae - Hillerman, 1982.
Angraecum Supercom - A. eburneum subsp. superbum x A. compactum - Hillerman, 1986.
Angraecum Superlena - A. eburneum subsp. Superbum x A. magdalenae - Hillerman, 1983.
Angraecum Supero - A. eburneum subsp. Superbum x A. sororium - Hillerman, 1988.
Angraecum Supertans - A. eburneum subsp. Superbum x A. equitans - Hillerman, 1981.
Angraecum Suzanne Lecoufle - A. mauritianum x A. dryadum - Lecoufle, 2007.
Angraecum Veitchii - A. eburneum x A. sesquipedale - Veitch, 1899.
Angraecum Vigulena - A. magdalenae x A. viguieri - Hillerman, 1987.
Angraecum White Diamond - A. Supertans x A. equitans - Hoosier, 2000.
Angraecum White Emblem - A. didieri x A. magdalenae - Matsuda, 1991.
Angraecum Willa Berryman - A. eburneum x A. Christmas Star - Boersma, 2003.

References

Whitman et al. 2011, pp. 55–67

Notes

Whitman, Melissa; Medler, Michael; Randriamanindry, Jean Jacques; Rabakonadrianina, Elisabeth (April 2011). "Conservation of Madagascar's granite outcrop orchids: influence of fire and moisture" (PDF). Lankesteriana. 11:1: 55–67. ISSN 1409-3871.