Difference between revisions of "Eulophia"

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Eulophia (Greek, handsome crest). Orchidaceae. Terrestrial orchids, requiring warmhouse conditions.
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Rather small plants with membranaceous Lvs. and conspicuous pseudobulbs: scape basal, several-fld.; sepals and petals spreading, similar, ascending; labellum 3-lobed; pollinia 2.—About 50-60 species, in the tropics of both hemispheres. The cult. of Calanthe will apply to this genus.
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E. Coleae, Rolfe. A slender-growing species with aloe-like lvs. — E. Lubbersiana, Laurent & Th. Dur. Allied to E. maculata: lvs. dark green, marbled with white. Afr. — E. nuda, Lindl. Scape about 2 ft. tall, many-fld. ; fls. ranging from rose-purple to pink, or yellow- lib green; lip nearly entire, recurved. India and China. B.M. 8057. — E. paniculata, Rolfe. Pseudobulbs tufted, bearing 2 strap- shaped Lvs.: fls. numerous; petals and lip yellowish green dotted with purple. Madagascar. — E. undulata, Rolfe. Scape about 1 ft. high, of slender growth; petals and lip pale green, the latter with 3 prominent keels on the disk. Rhodesia. — E. Woodfordii, Rolfe. With tall many-fld, infl.; IK green with dull claret-purple lip. Old Calabar. George V. Nash.
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Revision as of 09:18, 26 September 2009


Read about Eulophia in the Standard Cyclopedia of Horticulture 

Eulophia (Greek, handsome crest). Orchidaceae. Terrestrial orchids, requiring warmhouse conditions.

Rather small plants with membranaceous Lvs. and conspicuous pseudobulbs: scape basal, several-fld.; sepals and petals spreading, similar, ascending; labellum 3-lobed; pollinia 2.—About 50-60 species, in the tropics of both hemispheres. The cult. of Calanthe will apply to this genus.

E. Coleae, Rolfe. A slender-growing species with aloe-like lvs. — E. Lubbersiana, Laurent & Th. Dur. Allied to E. maculata: lvs. dark green, marbled with white. Afr. — E. nuda, Lindl. Scape about 2 ft. tall, many-fld. ; fls. ranging from rose-purple to pink, or yellow- lib green; lip nearly entire, recurved. India and China. B.M. 8057. — E. paniculata, Rolfe. Pseudobulbs tufted, bearing 2 strap- shaped Lvs.: fls. numerous; petals and lip yellowish green dotted with purple. Madagascar. — E. undulata, Rolfe. Scape about 1 ft. high, of slender growth; petals and lip pale green, the latter with 3 prominent keels on the disk. Rhodesia. — E. Woodfordii, Rolfe. With tall many-fld, infl.; IK green with dull claret-purple lip. Old Calabar. George V. Nash.


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Eulophia
Eulophia euglossa
Eulophia euglossa
Plant Info
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Cymbidieae
Subtribe: Cyrtopodiinae
Genus: Eulophia
R.Br.

Species
See Species

The genus Eulophia includes 210 species of orchids, subfamily Vandoideae, tribe Cymbidieae, subtribe Cyrtopodiinae.

The genus was first described by John Lindley in 1821. The name "Eulophia" was derived from the Greek words "eu" (well) and "lophos" (plume), referring to the crested ridges of the labellum (lip) in most species.

These are usually terrestrial or ground orchids, although some are epiphytes, and rarely, lithophytes. They are distributed in shady rainforests or in open scrub or woodland in the tropics and subtropics of Africa, India, Asia, Queensland (Australia), and the Americas, although most are found in Africa. Many can survive the dry season through their large bulbous ‘corms’.

Some species, such as Eulophia petersii, have adapted to very arid environments and are among the few orchids to have truly evolved desert living species. In the frost-free, semi-arid areas of Southern California, many Eulophia species, such as E. macra, E. petersii, E. plantaginea, and E. speciosa, can be grown outdoors year-round in well-drained pots with cactus/succulent potting mix (although E. speciosa prefers being grown in pure white sand), as long as they are given ample light through the winter and a drier winter resting period. Warmer growers, such as E. pulchra, E. keithii, and possibly even the extremely rare and difficult E. cucullata (the foxglove orchid), can probably be grown outdoors in the warmer areas of Florida and Hawaii, also.

The deciduous or evergreen leaves are usually pleated, with longitudinal veins. They are green and sheathed at the base. But in some species, the leaves may be reduced or have become brown scales. Some are leafless myco-heterotrophs.

The generally large, underground, fleshy rhizome indicates a sympodial growth habit, and this makes Eulophias fairly easy to divide and propagate, provided the grower is gentle.

The inflorescence arises from the base. It grows into a raceme. It is sometimes branched, as in the cases of E. macra and E. petersii. The inflorescences on the species with non-brancing spikes can support as many as 50 flowers; but in species with branching inflorescences, up to 150 blooms can occur per spike. While most Eulophia flowers rarely exceed 2" in width, this is often made up for by the sheer abundance of interesting blooms they produce. The sepals and the petals are alike. The lip usually has three lobes. As for all orchids, there are two pollinia for each flower. Eulophias (in bloom) can reach a height of 1.6m (6ft.). In any case, the ease of cultivation and reliability of blooming that many Eulophia species and hybrids demonstrate in captivity, in addition to their unique growth habits, makes them generally excellent orchids for amateur orchid collectors and people who like to grow plants with interesting flowers.

Species

Eulophia guieensis
Eulophia guineensis - habit

Hybrids

  • Eulophia × burundiensis ( = E. cucullata × E. flavopurpurea) (Burundi)..
  • Eulophia × pholelana ( = E. ovalis var. bainesii × E. zeyheriana) (S. Africa)
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