Aphandra
Encyclopedia
Aphandra is a monotypic
Monotypic
In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...

 genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of flowering plant
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...

 in the palm
Arecaceae
Arecaceae or Palmae , are a family of flowering plants, the only family in the monocot order Arecales. There are roughly 202 currently known genera with around 2600 species, most of which are restricted to tropical, subtropical, and warm temperate climates...

 family native to the Amazon Rainforest
Amazon Rainforest
The Amazon Rainforest , also known in English as Amazonia or the Amazon Jungle, is a moist broadleaf forest that covers most of the Amazon Basin of South America...

 vegetation
Vegetation
Vegetation is a general term for the plant life of a region; it refers to the ground cover provided by plants. It is a general term, without specific reference to particular taxa, life forms, structure, spatial extent, or any other specific botanical or geographic characteristics. It is broader...

 in South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

 (Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

, Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, and Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

). Its only species is Aphandra natalia, sometimes called mastodon palm or fiber palm, and is used by indigenous peoples in the construction of brooms and other products. This plant is commercially exploited for its edible fruits, and for its leaf sheath and petiole fibers. This fiber is almost equal to the fiber extracted from Attalea funifera and Leopoldinia piassaba
Leopoldinia piassaba
Leopoldinia piassaba is a palm native to black water rivers in Amazonian Brazil and Venezuela, from which is extracted piassava, a high caliber and water resistant fiber. Piassaba fiber is made into brooms, baskets, and other products...

, which is called piassava
Piassava
Piassava, which is also called Piaçaba and Piasaba or Pissaba, or Piassaba, is a fibrous product of two Brazilian palms: Attalea funifera and Leopoldinia piassaba. It is often used in making brooms, and for other purposes....

.

The genus name is a combination of Ammandra
Ammandra
Ammandra is a monotypic genus of flowering plant in the palm family found in South America where it is endangered. The sole species is Ammandra decasperma, although another species has been recognized. They are a pinnate-leaved, dioecious palm whose seeds and petioles are used in button and basket...

and Phytelephas
Phytelephas
Phytelephas is a genus containing six species of palms , occurring from southern Panama along the Andes to Ecuador, Bolivia and Peru. They are commonly known as ivory palms, ivory-nut palms or tagua palms; their scientific name means "plant elephant"...

, two closely related palm genera, and the epithet "natalia" honors Natalie Uhl, modern palm taxonomist.

Description

Aphandra natalia grows from single trunks, reaching over 12 m in height, being gray to tan in color. These trees usually remain covered in the bases of old leaves giving them a seeming trunk diameter of nearly 1 meter, however the actual trunk size when cleaned of the leaf bases is nearer to 30 cm. The vine-like, pendent fibers of the leaf bases resemble those of Leopoldinia piassaba
Leopoldinia piassaba
Leopoldinia piassaba is a palm native to black water rivers in Amazonian Brazil and Venezuela, from which is extracted piassava, a high caliber and water resistant fiber. Piassaba fiber is made into brooms, baskets, and other products...

from which brooms are also made. The actual leaves
Leaves
-History:Vocalist Arnar Gudjonsson was formerly the guitarist with Mower, and he was joined by Hallur Hallsson , Arnar Ólafsson , Bjarni Grímsson , and Andri Ásgrímsson . Late in 2001 they played with Emiliana Torrini and drew early praise from the New York Times...

 of A. natalia are usually 4.5 m in length but are borne on long, 2.5 m petioles
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

 giving them an overall length of 7 m. The leaflets are reduplicate, pinnate
Pinnate
Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna meaning "feather", "wing", or "fin". A similar term is pectinate, which refers to a comb-like arrangement of parts...

ly cleft and dark green in color.

They are sexually dioecious
Dioecious
Dioecy is the property of a group of biological organisms that have males and females, but not members that have organs of both sexes at the same time. I.e., those whose individual members can usually produce only one type of gamete; each individual organism is thus distinctly female or male...

 and markedly dimorphic; male plants produce an unusual 2.75 m inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 with many clustered branches of yellow flowers with females producing shorter tufts of yellow flowers surrounded by green to brown bracts. A mature infructescence resembles "a medieval club with spikes if the large amount of hairy black fiber was removed".

Distribution and habitat

A. natalia grows in eastern Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

 through northern Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

 to western Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

 reaching altitudes of 800 m. They are an under-story palm in the Amazon rainforest
Amazon Rainforest
The Amazon Rainforest , also known in English as Amazonia or the Amazon Jungle, is a moist broadleaf forest that covers most of the Amazon Basin of South America...

 stretching to the foothills of the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

.

External links

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