Arisaema

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Arisaema
Three-leaved flask (Arisaema triphyllum)

Three-leaved flask ( Arisaema triphyllum )

Systematics
Monocots
Order : Frog-spoon-like (Alismatales)
Family : Arum family (Araceae)
Subfamily : Aroideae
Tribe : Arisaemateae
Genre : Arisaema
Scientific name
Arisaema
Mart.

The Arisaema , cobra lilies or Pulpit called, are a genus within the family of the arum family (Araceae). The 150 to 180 species are predominantly found in the northern hemisphere , but mainly in Asia.

description

Illustration by Arisaema fargesii
Fruit cluster with ripe red berries of Arisaema bockii

Vegetative characteristics

Arisaema species are perennial herbaceous plants . These geophytes form underground, almost spherical tubers or rhizomes as survival organs. Tropical species with rhizomes are evergreen and grow without a resting phase; the deciduous species usually produce one or two, rarely three leaves per specimen each year , most of which are present during the flowering period. The upright leaves are clearly divided into a petiole and a leaf blade. The petiole is longer than the leaf blade. The leaf blades are often composed of three or more parts.

Generative characteristics

Most species bloom in spring and early summer, with leaves and inflorescence appearing at the same time. The inflorescence consists of the inflorescence stem, the spadix , an extension of the inflorescence axis and the spathe , which envelops the spadix and is rolled up in a tubular shape in the lower section. The upright inflorescence stem is usually about as long as the petiole or very short in a few species. Most species are dioecious, separate sexes ( diocesan ), so the inflorescences have only male or only female flowers. However, the sex of a plant is not genetically determined and can change from one season to another depending on the age and condition of the plant. Some species are single sexed ( monoecious ), then sections with female and male flowers are present in the piston. The spadix has a fertile , flowered and a sterile section. The latter can be shaped and elongated very differently. There are no bracts . Male flowers contain two to five stamens .

The berries, which are shiny orange to bright red when ripe, contain a few (one to six) seeds.

The basic chromosome numbers are x = 13 or 14.

ecology

Arisaema species are particularly noticeable for their attractive inflorescences, each consisting of a bract (spathe) and the spadix. The spathe is shaped and colored very differently depending on the species. Like many of her relatives, Arisaema is one of the kettle-trap flowers in terms of ecology . H. it attracts insects that are caught in the kettle-like inflorescences and pollinate the flowers there. The most common pollinators are fungus gnats ; the Arisaema species are therefore called fungus mosquito flowers ( myiophilia ).

If the species is dioecious, at least one female and one male individual are necessary for fertilization and seed formation. The main pollinators are fungus gnats from the Mycetophilidae and Sciaridae families . These are attracted by fragrances released from the sterile part of the spadix . The descriptions of the smell of different Arisaema species range from urine to fresh sea fish to rhubarb or mushroom aromas.

For pollination to be successful , the insects must first get inside a male inflorescence. They are attracted by the scent of the spadix, then fall into the cauldron-shaped spathe and crawl around the bottom of the trap, loading themselves with pollen that is scattered by the male flowers. The male inflorescences have an exit, an opening in the spathe, through which the animals come out again.

If the pollen-laden insects get into a female inflorescence, they can scrape off the pollen they brought with them on the stigmas of the female flowers while crawling around. In contrast to the male inflorescences, the female have no opening in the spathe. The insects remain trapped and die in the trap.

Evolution and Locations

The assumed origin of the genus Arisaema lies in the eastern Himalayan region and in China, which today is the center of biodiversity with around 91 species.

Depending on the species, they thrive in dry to moist locations. The populated habitats range from temperate tropical mountain rainforests to lawns above the tree line .

Distribution of the genus Arisaema

Systematics and distribution

The center of biodiversity are the temperate areas of Asia. In Asia, the genus Arisaema occurs from Afghanistan to Japan. With 78 species, almost half of the 150 to 180 species occur in China, 45 of them only there. The southern limit of distribution is in southern India and Java. There are also species in Yemen and East Africa . In North America only two species occur naturally, one of them as far as Mexico and one species only in Mexico.

The genus Arisaema was established in 1831 by Carl Friedrich Philipp von Martius in Flora , Volume 14, p. 459. Synonyms for Arisaema Mart. are. Alocasia Neck. ex Raf. nom. rej. non (Schott) G.Don , Dochafa Schott , Muricauda Small , Flagellarisaema Nakai , Heteroarisaema Nakai , Pleuriarum Nakai , Ringentiarum Nakai . The genus name Arisaema is made up of the Greek name aris for this plant, which was already used by Pliny , and the Greek word haima for blood, which refers to the red spots on the leaves of some species.

The genus Arisaema belongs to the tribe Arisaemateae in the subfamily Aroideae within the family Araceae . The genus Arisaema is divided into sections. In China there are the Arisaema sect. Anomala , Arisaema sect. Arisaema , Arisaema sect. Clavata , Arisaema sect. Decipientia , Arisaema sect. Dochafa , Arisaema sect. Fimbriata , Arisaema sect. Franchetiana , Arisaema sect. Nepenthoidea , Arisaema sect. Pistillata , Arisaema sect. Sinarisaema , Arisaema sect. Tenuipistillata , Arisaema sect. Tortuosa in front.

Depending on the author, there are 150 or 170, 180 up to 195 Arisaema species:

Arisaema amurense leaves and fruit clusters
Inflorescence of Arisaema bockii
Inflorescence of Arisaema candidissimum
Inflorescence of Arisaema ciliatum
Foliage and inflorescence of the dragon fire piston (
Arisaema dracontium )
Arisaema filiforme inflorescence
Inflorescences of Arisaema fimbriatum
Arisaema flavum leaves and inflorescence
Habit and leaves of Arisaema franchetianum
Habit and leaves of Arisaema heterophyllum
Foliage leaves and inflorescence of Arisaema jacquemontii
Subterranean and aboveground plant parts with inflorescence of Arisaema leschenaultii
Arisaema murrayi leaves and inflorescence
Habit and infructescence of Arisaema peninsulae
Habit, foliage and inflorescence of Arisaema polyphyllum
Habitus and inflorescences of Arisaema propinquum
Arisaema serratum var. Mayebarae

use

Some species are grown. Their leaves and subterranean plant parts can be eaten cooked. Eating these parts of the plant can be problematic due to calcium oxalate crystals. The drug of some species is also used medicinally. Several species are occasionally used as an ornamental plant in parks and gardens.

swell

Individual evidence

  1. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd Heng Li, Guanghua Zhu, Jin Murata: Arisaemam p. 43 - same text online as printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China. Volume 23: Acoraceae through Cyperaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2010, ISBN 978-1-930723-99-3 .
  2. a b c d e f g h i j k l Muricauda Small: Arisaema - online with the same text as the printed work , In: Flora of North America Editorial Committee (ed.): Flora of North America North of Mexico. Volume 22: Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in part), and Zingiberidae , Oxford University Press, New York and Oxford, 2000, ISBN 0-19-513729-9 .
  3. ^ Arisaema at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed August 14, 2014.
  4. a b c d e f g h Arisaema in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved August 15, 2014.
  5. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb Rafaël Govaerts (Ed.): Arisaema. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 6, 2019.
  6. a b c d e f Z. Ma, H. Li: The genus Arisaema (Araceae: Aroideae: Arisaemateae) in China - A taxonomic revision and annotated list of species. In: Aroideana , Volume 40, 2017, pp. 49-134.
  7. a b c d e f Walter Erhardt , Erich Götz, Nils Bödeker, Siegmund Seybold: The great pikeperch. Encyclopedia of Plant Names. Volume 2. Types and varieties. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5406-7 .
  8. VD Nguyen, TC Vu, HQ Bui: Arisaema lidaense J. Murata & SL Wu (Araceae): a new record for the flora of Vietnam. In: Aroideana , Volume 39, Issue 1, 2016, pp. 20-25.
  9. ^ Zheng-Xu Ma: Arisaema longitubum (Araceae), a new species from northwestern Yunnan, China. In: Phytotaxa , Volume 358, Issue 3, 2018, pp. 295–299. doi : 10.11646 / phytotaxa.358.3.7
  10. Entries on Arisaema at Plants For A Future

further reading

  • S. Vogel: A survey of the function of the lethal kettle traps of Arisaema (Araceae), with records of pollinationg fungus gnats from Nepal. In: Botanical Journal of the Linnean Society , Volume 133, 2000, pp. 61-100.
  • G. Gusman, L. Gusman The genus Arisaema: A monograph for botanists and nature lovers. 2003.
  • SS Renner et al .: A chloroplast phylogeny of Arisaema (Araceae) illustrates tertiary floristic links between Asia, North America, and East Africa. In: American Journal of Botany , Volume 91, 2004, pp. 881-888.
  • J. Murata, H. Nagamasu, H. Ohashi: A nomenclatural review on the infrageneric classifications of Arisaema (Araceae). In: Journal of Japanese Botany , Volume 88, 2013, pp. 36-45.

Web links

Commons : Arisaema  - collection of images, videos and audio files