Agave schottii
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Agave schottii is a plant from the genus of the Agave ( agave ). The specific epithet schottii honors the German naturalist and plant collector Arthur Schott , who was involved in surveying the border between the United States and Mexico. An English common name is "Schott's Agave".
description
Agave schottii forms small, dense rosettes. The narrow, linear, flexible, variably arranged, light yellow-green, tapering leaves are 25 to 40 cm long and 0.7 to 1.2 cm wide. The fibrous edges of the leaf form a brown edge. The gray terminal spine is 0.8 to 1.2 cm long.
The year-old, slender, curved inflorescence is 1.8 to 2.5 m high. The light yellow flowers are 30 to 40 mm long and appear on sturdy stems in 1 to 3 flowers on the inflorescence. The deep funnel-shaped flower tube is 9 to 14 mm long.
The round to pointed three-chambered capsule fruits are 1 to 2 cm long. The black, variably shaped seeds are 3 to 3.5 mm long.
The flowering period extends from April to August.
Systematics and distribution
Agave schottii grows in Arizona and New Mexico in the United States as well as in Mexico in Sonora and Chihuahua on stony slopes, in grass and woodlands up to 900 m in height. It is usually associated with numerous types of cacti and succulents .
The first description by George Engelmann was published in 1875. Synonyms are Agave geminiflora var. Sonorae Torr. and Agave schottii var. atricha Trel.
A distinction is made between the following varieties:
- Agave schottii var. Schottii (Syn .: Agave schottii var. Serrulata Mulford ): It occurs in southern Arizona, southwestern New Mexico and the Mexican state of Sonora. The number of chromosomes is 2n = 120.
- Agave schottii var. Treleasei (Toumey) Kearney & Peebles : It occurs in Arizona and the Mexican state of Sonora.
Agave schottii is a representative of the Parviflorae section , which includes the smallest species of the genus. The long, narrow leaves are typical. The species is similar to Agave felgeri , but differences in the flower structure become clear. Agave schottii is grown in the Desert Botanic Garden in Arizona.
literature
- August J. Spread: Agave schottii. In: The Agaves. The Cactus & Succulent Journal Yearbook. 1968, pp. 28, 30.
- Thomas Heller: Agaves . Ntv, Münster. 2006, ISBN 3-937285-59-8 , pp. 128-129.
- Howard Scott Gentry: Agaves of Continental North America . University of Arizona Press, 1982, ISBN 0-8165-0775-9 , pp. 205-207.
- James L. Reveal, Wendy C. Hodgson: Flora of North America Agavaceae . Oxford University Press, 2002, pp. 448 .
- J. Thiede: Agave schottii. In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , p. 61.
- B. Ullrich: Agave schottii Brandegee. In: Cacti and other succulents . Volume 40, No. 6, 1989, index card 18.
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 216.
- ↑ George Engelmann In: Trans. Acad. Sci. St. Louis. Volume 3, 1875, p. 305.
- ↑ Howard Scott Gentry: Agaves of Continental North America . 1982, pp. 205-207.
- ↑ a b Rafaël Govaerts (ed.): Agave schottii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 6, 2020.
- ↑ Agave schottii at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis