Monanthes brachycaulos

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Monanthes brachycaulos
Systematics
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Aeonieae
Genre : Monanthes
Type : Monanthes brachycaulos
Scientific name
Monanthes brachycaulos
( Webb & Berthel. ) Lowe

Monanthes brachycaulos is a species of plant from the genus Monanthes in the family of thick-leaf plants (Crassulaceae). The specific epithet brachycaulos is derived from the Greek words brachys for 'short' and kaulos for 'trunk'.

description

Vegetative characteristics

Monanthes brachycaulos is a perennial , single or occasionally sprouting rosette plant . Their shoots are short and strong and more or less caudiciform or slightly to significantly elongated. They have a diameter of 5 to 12 millimeters. The loose or rather compact, flat rosettes reach a diameter of 7 to 35 millimeters and consist of up to 60 leaves. The narrow obovate leaves are pointed and narrow into a tapering base. Your leaf blade is 5 to 18 millimeters long, 3 to 6 millimeters wide and 1 to 2 millimeters thick. Their surface is bare or near the base with a few, very short glandular hairs less than or equal to 0.05 millimeters in length. Above it is slightly papillary .

Inflorescences and flowers

The inflorescence consists of simple and branched flower stems that appear laterally and is regularly branched. The six to seven-fold flowers are on glandular-hairy pedicels 4 to 10 millimeters long and reach a diameter of 3 to 4 millimeters. Their elongated and in the upper part sometimes somewhat widened, pointed or thorn-pointed petals are 2.3 to 3.7 millimeters long and 0.5 to 0.7 millimeters wide. The nectar flakes are 1.1 to 1.6 millimeters long and 1.6 to 1.9 millimeters wide. Your blade is somewhat bilobed, trimmed or inverted heart-shaped, frayed and clearly nailed.

Distribution and systematics

Monanthes brachycaulos is common on the Canary Islands Gran Canaria and Tenerife at altitudes of 20 to 2500 meters.

The first description as Petrophyes brachycaulos by Philip Barker Webb and Sabin Berthelot was published in 1841. Richard Thomas Lowe placed the species in the genus Monanthes in 1869 .

Synonyms are Sempervivum brachycaulos (Webb & Berthel.) Kuntze (1891), Monanthes brachycaulos hort. (without year), Petrophyes brachycaulos var. bulbosus bone (in schedula, without year, nom. inval. ICBN -Article 29.1), Petrophyes brachystachys Webb (in schedula, without year, nom. inval. ICBN -Article 29.1) Sempervivum bulbosum Sol . ex Webb & Berthel. (1941, nom. Inval. ICBN -Article 34.1), Petrophyes brachycaulos var. Canariae Pitard (1909), Petrophyes brachycaulos var. Teneriffae Pitard (1909), Petrophyes brachycaulos f. fasciata Praeger (1929), Petrophyes brachycaulos f. ramosa Praeger (1929), Monanthes niphophila Svent. (1946), Monanthes brachycaulos f. niphophila (Svent.) PVHeath (1994), Monanthes niphophila var. adenopetala Svent. (1960), Monanthes brachycaulos var. Nivata Svent. (1960, nom. Inval. ICBN -Article 37.1), Monanthes praegeri Bramwell (1969) and Petrophyes brachycaulos f. praegeri (Bramwell) PV Heath (1994).

proof

literature

  • Reto Nyffeler: Monanthes brachycaulos . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 191 .

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. 30.
  2. ↑ Philip Barker Webb: Histoire Naturelle des Îles Canaries . Volume 3, Part 2 Section 1, 1841, 202-203 ( online ).
  3. ↑ Richard Thomas Lowe: Florulae Salvagicae Tentamen or a list of plants collected in the Salvages or Salvage Islands . John van Voorst, London 1869, p. 12 ( online) .

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