Sinningia

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Sinningia
File:Sinningia leucotricha auckland 1.JPG
Sinningia leucotricha
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Lamiales
Family:
Gesneriaceae
Genus:
Sinningia
Synonyms[citation needed]

Corytholoma
Lietzia
Rechsteineria

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Sinningia /sᵻˈnɪndʒiə/[1] is a genus of flowering plants in the family Gesneriaceae. It is named after Wilhelm Sinning (1792-1874), a gardener of the Botanische Gärten der Friedrich-Wilhelms-Universität Bonn.[2] There are about 65 species of tuberous herbaceous perennials, all occurring in Central and South America, with the greatest concentration of species occurring in southern Brazil.

File:Sinningia incarnata.jpg
Sinningia incarnata

The best-known species, Sinningia speciosa, was originally introduced to cultivation as Gloxinia speciosa and is still commonly known to gardeners and in the horticultural trade as "gloxinia". The true genus Gloxinia is distinguished by having scaly rhizomes rather than tubers.

Sinningia species often grow on rocks or cliffs and most are pollinated by hummingbirds or bees but Sinningia brasiliensis is bat-pollinated, and Sinningia tubiflora, with large, powerfully fragrant tubular white flowers, is apparently pollinated by sphinx moths. Most of the species have large, brightly colored flowers. Because of this, numerous species and numerous hybrids and cultivars are grown as houseplants. A cultivar worth knowing is Sinningia x 'Lovely.' This beautifully gentle plant is a cross between Sinningia sellovii and Sinningia tubiflora. Its tall spikes and tubular flowers attract butterflies, and delight gardeners. Some species with particularly large tubers are cultivated by cactus and succulent enthusiasts as caudiciforms. One such example is Sinningia leucotricha, often listed under the older name Rechsteineria leucotricha and dubbed "Brazilian edelweiss" for its covering of silvery, silky hairs. Other species with large tubers are Sinningia iarae, Sinningia lineata, and Sinningia macropoda.

The hybrid cultivars 'Empress Purple Spotted'[3] and 'Empress Red'[4] have gained the Royal Horticultural Society's Award of Garden Merit.

File:Sinningia speciosa.jpg
Sinningia speciosa, flower about 5 cm across

The Brazilian genera Paliavana and Vanhouttea, consisting of shrubby plants without tubers, are closely related to Sinningia and recent morphological and molecular analyses (Boggan 1991, Perret et al. 2003) suggest that these genera are, in fact, nontuberous Sinningia species. All three genera were included in tribe Gloxinieae in the classification system of Hans Wiehler but are now recognized in their own tribe, Sinningieae.

Numerous genera, including Corytholoma, Rechsteineria and Lietzia, have been synonymized under Sinningia.[citation needed]

Garden Uses and Cultivation

Sinningias are attractive greenhouse plants and houseplants that appeal strongly to gardeners who like to specialize in particular plant groups.The chief environmental needs are warmth, high humidity, suitable soil and good light with shade from strong sun. The soil should be well drained. It should contain a liberal proportion of organic matter, such as leaf mold or peat moss, and enough coarse sand or perlite to ensure good porosity.

Species

Species include:[5]

References

  1. ↑ Sunset Western Garden Book, 1995:606–607
  2. ↑ Genaust, Helmut (1976). Etymologisches Wörterbuch der botanischen Pflanzennamen ISBN 3-7643-0755-2
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  • Boggan, J.K. 1991. 1991. A morphological study and cladistic analysis of Sinningia and associated genera with particular reference to Lembocarpus, Lietzia, Paliavana, and Vanhouttea (Gesneriaceae: Gloxinieae). Thesis, Cornell University, Ithaca, New York, U.S.A. ix + 179 pages, 21 figures. [Copies available at Cornell University and Smithsonian Institution libraries.]
  • Perret, M., A. Chautems, R. Spichiger, G. Kite, & V. Savolainen. 2003. Systematics and evolution of tribe Sinningieae (Gesneriaceae): evidence from phylogenetic analyses of six plastid DNA regions and nuclear ncpGS. American Journal of Botany 90(3): 445-460.
  • Wiehler, H. 1983. A synopsis of the neotropical Gesneriaceae. Selbyana 6: 1-219.
  • Wiehler, H. and A. Chautems. 1995. A reduction of Lietzia to Sinningia. Gesneriana 1(1): 5-7.

External links

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