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Aroids and other genera in the Collection      Take the Tour Now?     Orchids

The Exotic Rainforest
Plants in the Exotic Rainforest Collection
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Detailed information on Growing Anthurium Species  Click this Link

Within our collection we have many species of Anthurium.  If you are seeking other photos, click this link:

 New: Understanding, pronouncing and using Botanical terminology, a Glossary

Anthurium colonicum .K. Krause

Anthurium colonicum, Photo Copyright 2007, steve Lucas,

Anthurium colonicum K. Krause
Published to science in 1916, Anthurium colonicum (co-LON-i-cum) is considered endemic to (exclusively found in) Panama and can be observed from Veraguas to Code in Panamanian provinces from near sea level to approximately 1,150 meters (3,500 feet) in tropical and wet pre-mountainous rain forest regions.  However, reports exist on scientific data bases that Anthurium colonicum has also been infrequently collected in Brazil (near Rio de Janeiro) and in Colombia.  Anthurium colonicum is a member of section Pachyneurium which includes all the birds nest Anthurium forms. 

Anthurium colonicum has lobed leaf blades that are ovate/triangular and grow to 120cm (4 feet) with an average width of 13 to 39cm (5.2 to 15.35 inches).  The term ovate/triangular Anthurium colonicumleaf veins, Photo Coyright 2007, Steve Lucas, www.ExoticRainforest.comrefers to a leaf that appears to be a combination of oval and triangular at the same time.  An epiphyte (ep-a-FIT) grows on trees, Anthurium colonicum is recognized by its elongated leaf blades with lightly ruffled edges. 

The leaf blades are coriacious (leathery) weakly glossy and bi-colorous.  The midrib of the blade is convex on the adaxial (upper) surface.  The primary lateral veins are convex on each side but are clearly visible on the abaxial surface (underside) of the blade.   The petioles which support each leaf are sub-terete (just less than round) and are narrowly canaliculate (grooved) and measure 26 to 90cm (10.25 to 35.4 inches) long.   The cataphylls which are a modified leaf that surrounds each new leaf as it emerges dry to fibers and are persistent on the specimen.  The cataphylls are coriaceous growing to 20 to 25cm (7.9 to 9.85 inches) in length and sometimes become deciduous falling from the plant.  
Anthurium colonicum is similar in appearance and most closely related to the rare Panamanian species Anthurium nervatum which has similar veiny leaf blades, a similarly reflexed purplish spathe, and orange berries.  Anthurium nervatum has more lateral leaf veins numbering 12 to 30 while Anthurium colonicum possesses 7 primary veins. 

An aroid, all Anthurium species reproduce via the production an inflorescence.  The stalk that supports the entire inflorescence is the peduncle. When an Anthurium is "in flower" the reference is to the tiny flowers containing both male and female sexual parts that grow on the spadix at the center of the inflorescence.  Unlike plants in the genus Philodendron which contain imperfect flowers having only a single sex Anthurium possess perfect flowers containing both sexes.  To help prevent self pollination nature has designed the female flowers to be receptive before the male portion of the flower produce their pollen so in most cases an insect must bring pollen from another plant.

Once the female portion of the flowers on the spadix have been fertilized by an insect, normally a beetle, they produce berries.  The colorful berries are then eaten  by birds and other rain forest animal species that spread them among the branches of the trees in their droppings.  As a result, Anthurium colonicum does not need to have its roots in soil but simply dangle in the air.  Nourishment is supplied by falling debris from the branches above the specimen as well as by the frequent rains.

A. colonicum often has a stubby spadix that produces sharply pointed orange berries.  The aroid's Inflorescences stands erect on a peduncle that is purplish in color but may also be spreading to pendent (hanging downwards).  The spathe is purple on the inside and is reflexed (turned back) as well as both twisted and green with purple-violet or a reddish color on the exterior.  The spadix is green turning purplish and produces white pollen.   You can learn more about natural pollination within aroid species by clicking this link:  

Anthurium species are known to be highly variable and not every leaf of every specimen will always appear the same.  This link explains in non-technical language natural variation and morphogenesis within aroids and other species. 
Click here.


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