Agave fusca

from Wikipedia, the free encyclopedia
Agave fusca
Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave fusca
Scientific name
Agave fusca
( Ravenna ) Thiede & Eggli

Agave fusca is a species of the agave genus( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet fusca comes from Latin , means 'dark brown' and refers to the color of the flowers.

description

Agave fusca has a rhizome 2 to 2.3 centimeters in diameter. The several ash-gray, spread out, narrowly lanceolate leaves are runny. Their underside is keeled and slightly roughened. The leaf blade is 30 to 50 inches long and 2.2 to 3 inches wide.

The inflorescence stem is stiff, the bracts are quite far apart. The approximately 20 clustered individual flowers are apparently seated and stink. The elongated greenish ovary is 12 to 17.8 millimeters long and 6.6 millimeters wide. The 37 millimeter long tepals are glaucous green on the outside . Their dark brown tips on the outside are spread out to turned back, linear-lanceolate and have a length of 14.8 to 16 millimeters and a width of 4 to 5.8 millimeters. The tip is finely pointed and warty. The 39 to 42 millimeter long stamens are sparsely glandular. They are dirty greenish white with a few dark lines. The pen is in front of the tearing of the dust bag repulsed and twisted later, he is almost straight or slightly curved and has a length of up to 57 millimeters. The heady scars are three-lobed.

Nothing is known about the fruits and seeds .

Systematics and distribution

Agave fusca is found in Guatemala in the Chimaltenango department in the Comalapa municipality on sandy plains.

The first description as Manfreda fusca by Pierfelice Ravenna was published in 1985. Joachim Thiede and Urs Eggli placed the species in the genus Agave in 1999 .

The species belongs to the subgenus Manfreda and is assigned to the Manfreda group there.

proof

literature

  • Joachim Thiede: Agave fusca . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 31-32 .

Individual evidence

  1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 89.
  2. ^ Pierfelice Ravenna: Notes on Agavaceae. I. A new species of Manfreda . In: Herbertia . Volume 43, Number 1, Orlando, FL 1987, pp. 17-19.
  3. ↑ Joachim Thiede, Urs Eggli: Inclusion of Manfreda Salisbury and Polianthes Linné in Agave Linné (Agavaceae): further renaming . In: Cacti and other succulents . Volume 52, Number 6, 2001, pp. 166-167 (online) .

Web links