Agave bicolor

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Agave bicolor
Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave bicolor
Scientific name
Agave bicolor
( E. Solano & García-Mend. ) Thiede & Eggli

Agave bicolor is a type of plant from the genus of agaves ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet bicolor comes from Latin , means 'two-colored' and refers to the two-colored flowers of the species.

description

Agave bicolor is bare and grows with rhizomes 3 to 4 (rarely 2 to 5) centimeters in length and 1.5 to 2.5 (rarely from 1) centimeters in width. The roots are fleshy. The four to six (rarely three to twelve) wavy, semi-succulent, smooth to papillae leaves are lanceolate. They are 8 to 15 (rarely from 5) centimeters long and 0.6 to 1 (rarely up to 1.4) centimeters wide. The wavy leaf margins are papilla and hyaline .

The "eared" inflorescence is 24 to 40 (rarely up to 54) centimeters long. From its three to five (rarely up to nine) flower-bearing nodes arise in pairs the 23 to 29 (rarely from 20) millimeters long flowers . The lanceolate bracts are 3 to 5 (rarely up to 7.5) centimeters long. The flower stalk is 6 to 13 millimeters long, the ovary is 9 to 15 (rarely up to 19) millimeters long. The tepals the flowers are orange colored green. The abruptly expanded and curved flower tube has a diameter of 2.4 to 3 (rarely 1.6 to 5.5) millimeters at its mouth. Their green, small-pointed petals are 2 to 3 (rarely up to 4) millimeters long and 2 to 3 (rarely 1.7 to 4) millimeters wide. The stigma does not protrude from the flower. The stylus reaches lengths of 19 to 26 (rarely 10 to 32) millimeters. The scar is three-lobed. The flowering period extends from June to August.

The hemispherical fruits are 1.1 centimeters long and just as wide. They contain hemispherical black seeds 4.5 millimeters long and 2.4 millimeters wide.

Systematics and distribution

Agave apedicellata is distributed in the Mexican state of Oaxaca in grasslands and in pine-oak forests at altitudes of 2300 to 2500 meters. Agave apedicellata is the southernmost member of the Polianthes group.

The first description as Polianthes bicolor by Eloy Solano and Abisai Josue García-Mendoza was published in 1998. 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 Polianthes group there.

proof

literature

  • Joachim Thiede: Agave apedicellata . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 16 .

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. 26.
  2. Eloy Solano Camachio, Abisai García-Mendoza: Una nueva especie de Polianthes (Agavaceae) del estado de Oaxaca, Mexico . In: Sida . Volume 18, Number 2, 1998, p. 473 (online) .
  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) .