Calyptrocalyx

taxobox
name = "Calyptrocalyx"
regnum = Plantae
unranked_divisio = Angiosperms
unranked_classis = Monocots
unranked_ordo = Commelinids
ordo = Arecales
familia = Arecaceae
subfamilia = Arecoideae
tribus = Areceae
genus = "Calyptrocalyx"
genus_authority = BlumeBlume, Bulletin des Sciences Physiques et Naturelles en Neérlande 1:66. 1838. Type:"C. spicatus"]
subdivision_ranks = Species
subdivision = *"Calyptrocalyx albertisianus"
*"Calyptrocalyx amoenus"
*"Calyptrocalyx arfakianus"
*"Calyptrocalyx awa"
*"Calyptrocalyx caudiculatus"
*"Calyptrocalyx doxanthus"
*"Calyptrocalyx elegans"
*"Calyptrocalyx flabellatus"
*"Calyptrocalyx forbesii"
*"Calyptrocalyx geonomiformis"
*"Calyptrocalyx hollrungii"
*"Calyptrocalyx julianettii"
*"Calyptrocalyx lauterbachianus"
*"Calyptrocalyx laxiflorus"
*"Calyptrocalyx lepidotus"
*"Calyptrocalyx leptostachys"
*"Calyptrocalyx merrillianus"
*"Calyptrocalyx micholitzii"
*"Calyptrocalyx multifidus"
*"Calyptrocalyx pachystachys"
*"Calyptrocalyx pauciflorus"
*"Calyptrocalyx polyphyllus"
*"Calyptrocalyx pusillus"
*"Calyptrocalyx sessiliflorus"
*"Calyptrocalyx spicatus"
*"Calyptrocalyx yamutumene"|

"Calyptrocalyx" is a monoecious genus of flowering plant in the palm family found in Papua New Guinea and the nearby Maluku Islands. Ranging from small to large, the palms in this genus are increasingly found in cultivation owing largely to their purple, red, and orange colored, new foliage. At least 26 species have been described while others, known only by local names, have not yet received a taxonomic account. Palms formerly classified within "Paralinospadix" have been incorporated into this genus. It is named from 2 Greek words meaning 'covered' and 'calyx'.Riffle, Robert L. and Craft, Paul (2003) "An Encyclopedia of Cultivated Palms". Portland: Timber Press. ISBN-10: 0881925586 / ISBN-13: 978-0881925586]

Description

Most "Calyptrocalyx" species are clustering while a few grow from solitary trunks, all being conspicuously ringed by leaf scars. Trunk diameters range from 1 cm in "C. arfakiensis" to 25 cm in "C. spicatus", spanning heights of 1 to 12 m. The leaves may be pinnate, bifid, or undivided on adaxially channeled, abaxially rounded petioles. While the foliage of these palms matures to various shades of green it is often brightly colored when emergent.

The inflorescence is usually an unbranched, interfoliar spike with unisexual flowers of both sexes; both pistillate and staminate flowers have three sepals and three petals. The fruit produced by "Calyptrocalyx" species is usually orange or red in color when mature, each containing one seed.Uhl, Natalie W. and Dransfield, John (1987) "Genera Palmarum - A classification of palms based on the work of Harold E. Moore". Lawrence, Kansas: Allen Press. ISBN-10: ISBN-10: 0935868305 / ISBN-13: 978-0935868302]

Distribution and habitat

All of these palms are found in Papau New Guinea except "C. spicatus" which grows in the Moluccas. They are all undergrowth inhabitants of rain forests from sea level up to 1000 m, often on montane slopes and occasionally alongside streams and in swamps.

Cultivation

Commonly cultivated for their colorful new leaves, these palms are not hardy to cold and require protection from freezing temperatures. They prefer a quickly draining, humus-rich soil and shade or filtered light when young, though some will adapt to full sun as they mature. They also require protection from cold, dry winds which easily damage or kill them.

References

reflist

External links

* [http://data.gbif.org/species/14721689 GBIF Portal]
* [http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?1968 "Calyptrocalyx" on NPGS/GRIN]
* [http://www.pacsoa.org.au/palms/Calyptrocalyx/overview.html PACSOA - "Calyptrocalyx"]
* [http://palmguide.org/genus.php?family=ARECACEAE&genus=calyptrocalyx Fairchild Guide to Palms: "Calyptrocalyx"]