Pritchardia Schattaueri
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''Pritchardia schattaueri'', the lands of papa pritchardia or Schattauer's loulu, is a species of
palm tree The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees ...
in the genus
Pritchardia The genus ''Pritchardia'' (family Arecaceae) consists of between 24 and 40 species of fan palms (subfamily Coryphoideae) found on tropical Pacific Ocean islands in Fiji, Samoa, Tonga, Tuamotus, and most diversely in Hawaii. The generic name ho ...
that is
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to mixed mesic forests on the southwestern part of island of Hawaii, near Kona. It is officially listed as a Critically endangered species.


Description

This species reaches an incredible height of , with a smooth, grayish trunk up to in diameter. The large, spherical crown typically contains up to 30 ascending, spreading to drooping
leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...
, with the long and wide slightly wavy blades held on petioles or more in length which are abundantly covered along both edges at the base in medium tan fibers. The leaves, glossy green above and below, are divided to 2/5 into many pendulous-tipped segments, with the abaxial surface incompletely covered with scattered fuzz. The
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. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
s are composed of 1-4
panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...
s, shorter than or equalling the petioles in length. The panicles are branched to 2 orders, with glabrous
rachilla Rachilla may refer to the following topics in botany: * Rachilla (floral axis) A spikelet, in botany, describes the typical arrangement of the flowers of grasses, sedges and some other Monocots. Each spikelet has one or more florets. The spikele ...
e. The flowers are followed by large, shiny, black, mostly spherical fruits nearly long and wide when mature. It grows at elevations of , where it receives of rainfall per year.


Distribution

Known only from twelve individuals, ''P. schattaueri'' currently occurs in moist, partially cleared, disturbed, tall, mixed '' ōhiʻa'' forest on gently sloping, rocky terrain from feet elevation in South Kona on the island of Hawai'i, where it receives of rainfall per year. Ten of the twelve individuals occur within 1,000 feet of each other among tall ''ōhiʻa trees'' in a cattle ranch, while the remaining two plants are a mile or two away, one in a macadamia nut orchard and the other in weedy, forest remnants.


History

''Pritchardia schattaueri'' was formally named and described by Donald Hodel in 1985, basing it on a collection that the late H. E. Moore Jr. of the Bailey Hortorum of
Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach an ...
had made in 1980. The name honors the late George Schattauer, manager of Ho'omau ranch (the ranch of the late Jimmy Stewart), who came across these palms in 1960 while clearing land for pasture and macadamia nuts. Schattauer, who had a fondness for Hawaiian plants and an interest in preserving the flora and fauna of Hawai'i, recognized the significance of his discovery and left the palms standing. In 1969 and 1970, he sent fruits to Paul Wessich of Honolulu Botanical Gardens, who planted and grew them in the garden in Honolulu. The population is officially designated as an Exceptional Tree of Hawai'i.


Cultivation and uses

Native Hawaiians valued the fruits of ''Pritchardia'' as a food source. The immature fruits, called ''hāwane or wāhane,'' were gathered and the
endosperm The endosperm is a tissue produced inside the seeds of most of the flowering plants following double fertilization. It is triploid (meaning three chromosome sets per nucleus) in most species, which may be auxin-driven. It surrounds the embryo and ...
was eaten (tasting like coconut meat). Leaves were also collected to use for thatching roofs, as well as for making fans, umbrellas, hats, and baskets. The trunks were also used for making spears and as material for construction. Hawaiian ''Pritchardia'' are especially popular among growers and collectors in subtropical areas or in regions with a
Mediterranean climate A Mediterranean climate (also called a dry summer temperate climate ''Cs'') is a temperate climate sub-type, generally characterized by warm, dry summers and mild, fairly wet winters; these weather conditions are typically experienced in the ...
, such as
southern California Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most po ...
,
Southern Europe Southern Europe is the southern regions of Europe, region of Europe. It is also known as Mediterranean Europe, as its geography is essentially marked by the Mediterranean Sea. Definitions of Southern Europe include some or all of these countrie ...
, and
southern Australia The term Southern Australia is generally considered to refer to the states and territories of Australia of New South Wales, Victoria, Tasmania, the Australian Capital Territory and South Australia. The part of Western Australia south of lati ...
, because they are more tolerant of cooler temperatures than their South Pacific counterparts, ''
Pritchardia pacifica ''Pritchardia pacifica'', the Fiji fan palm, or piu, is a species of palm tree in the genus ''Pritchardia'' that is native to Tonga. It is also found on Fiji, Samoa, and the Marquesas however these populations are likely to be human introduction ...
'' and ''
Pritchardia thurstonii ''Pritchardia thurstonii'' is a species of flowering plant in the family Arecaceae. It is endemic to Fiji, in particular the Lau Islands. It is threatened by habitat loss. It is sometimes known as the Thurston's palm or the Lau fan palm and is n ...
''.


Conservation

''Pritchardia schattaueri'' is officially listed as a Critically endangered species. There are 12 individuals remaining in the wild, all on private land. Threats include urbanization, severe habitat degradation,
rats Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus ''Rattus''. Other rat genera include ''Neotoma'' (pack rats), ''Bandicota'' (bandicoot ...
, pigs, cattle and weeds. No seedling recruitment and relatively small overall numbers prohibit regeneration. Its narrow, restricted range increases susceptibility to a single disruptive event, such as a
hurricane A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...
or volcanic activity, and to potential damage from introduced weeds, animals and disease. Although all palms are mature and produce regularly, their habitat is so altered that regeneration is non-existent. All twelve plants are tall and old and perhaps approaching the end of their natural lives. Some have a generally unthrifty appearance, with much-reduced, hemispherical crowns of leaves and minimal flower and fruit production. In 2001, seed from all 12 ''Pritchardia schattaueri'' was collected by the Kona Palm Society. The Amy Greenwell Ethnobotanical Garden ensured their propagation. A partnership was formed between the
United States Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with othe ...
and
The Nature Conservancy The Nature Conservancy (TNC) is a global environmental organization headquartered in Arlington, Virginia. it works via affiliates or branches in 79 countries and territories, as well as across every state in the US. Founded in 1951, The Natu ...
to reintroduce the endangered seedlings in significant numbers at the Conservancy's Kona Hema Preserve. The Kona Hema site was selected for its close proximity to the founder seed trees, and also because the entire 8,000-acre preserve was fenced and free of hooved animals, something that had never been done at this scale in the Kona landscape. The site provided ideal conditions for protecting an out-planted endangered species and ensuring its survival into the future. Since the initial planting, many more seeds have been collected and planted. Because they came from a very small population, it was important to have as much genetic variability as possible, so the founder tree of each seedling was tracked and a GPS point recorded. Today there are over 600 ''Pritchardia schattaueri'' of various ages growing at Kona Hema Preserve, some more than 15 feet tall.


Gallery

File:Post-4990-0-65561700-1389768696.jpg File:Pritchardia_schattaueri_(5249708993).jpg File:Pritchardia_schattaueri,_Koko_Crater_Botanical_Garden_-_IMG_2252.JPG File:Post-4990-0-56979300-1389769556.jpg


References


External links

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Pamlpedia
{{Taxonbar, from=Q5489499 schattaueri Trees of Hawaii Endemic flora of Hawaii Critically endangered plants Taxonomy articles created by Polbot