Monthly Archives: January 2013

Ascocentrum miniatum

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Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Vandeae
Subtribe: Aeridinae
Alliance: Vanda
Genus: Ascocentrum
Species: Ascocentrum miniatum

Plant blooms from Winter to Spring with many 1.2 to 1.5 cm wide flowers, and can grow up to 30 cm tall. The plant is very similar to Ascocentrum garayi but differs by having a much narrower petals, a recurved lip, and more transparent veiny flowers.

Chromosome count of Asctm. miniatum is 2n = 38. When hybridizing with Asctm. miniatum the F1 generation usually contain plants with orange or orange-yellow regardless of the other parent’s color.

Plants grow in humid forest of Assam, Laos, Thailand, Vietnam, Java, Malaysia, Philippines, Sumatra at elevations of 0 to 1200 meters.

Plants are best grown hanged in baskets and on mounted and require bright to full sunlight and intermediate to warm temperatures. If hunged the roots must be watered frequently. Slightly reduce watering in the winter. Plants should be grown in media that is well drained such as tree fern fibers (for small plants), several pieces of coarse fir bark, or sphagnum moss.

Source : http://orchids.wikia.com/wiki/Ascocentrum_miniatum

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Grammatophyllum speciosum

Grammatophyllum_speciosum_large

Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Cymbidieae
Subtribe: Cyrtopodiinae
Alliance: Cymbidium
Genus: Grammatophyllum
Species: G. speciosum

It is an epiphytic and occasionally a lithophytic plant, forming spectacular root bundles. Its cylindric pseudobulbs can grow to a length of 2.5 m. It can grow to gigantic clusters weighing from several hundred kilograms to more than one ton.

Each raceme can grow to a height of 3m, bearing up to eighty flowers, each 10 cm wide. The flowers are yellow colored with maroon or dark red spots. These flowers are remarkable, since the lowest flowers have no lip and these flowers function as osmophores for the entire inflorescence and continue to emit chemical scent to attract pollinators as flowers open in succession. It blooms only once every two to four years. This orchid can, however, remain in bloom for up to two months.

  • Giant orchid, not to be confused with Pteroglossaspis ecristata (Fernald) Rolfe  or Barlia robertiana, both of which are also commonly called the giant orchid.
  • Tiger orchid, not to be confused with Rossioglossum grande or Maxillaria species, both are also called tiger orchid.
  • Queen of the orchids, not to be confused with Cattleya species
  • Sugar cane orchid, for its resemblance to a sugarcane plant of the genus Saccharum

It is native to New Guinea, Indonesia, Malaysia and Philippines, growing in crotches of large trees on exposed areas of the lowland tropical rainforest.

Source : http://en.wikipedia.org/wiki/Grammatophyllum_speciosum

Categories: All About Orchid | Tags: , , , | Leave a comment