Crassula viridis

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Crassula viridis
Systematics
Nuclear eudicotyledons
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Crassuloideae
Genre : Thick leaf ( Crassula )
Type : Crassula viridis
Scientific name
Crassula viridis
( S.Watson ) M.Bywater & Wickens

Crassula viridis is a species of thick leaf ( Crassula ) in the thick leaf family(Crassulaceae).

description

Crassula viridis is a herbaceous plant with an erect end . Their narrow, triangular leaves are 6 to 9 millimeters (rarely 4 to 10 millimeters) long. Its tip is pointed.

A four-fold flower is formed per node . The flower stalk is 0.6 to 1 millimeter (rarely 0.4 to 4 millimeters) long. Their 0.7 to 0.8 millimeters long and 0.5 to 0.7 millimeters wide sepals are triangular. The also triangular, pointed petals are 1.3 millimeters long and 0.6 millimeters wide. The thread-like nectar flakes have a length of 0.6 millimeters. Six to twelve seeds are formed per carpel . The elongated to narrow kidney-shaped seeds are reddish brown, striped lengthways and have individual papillae . They are 0.5 to 0.54 millimeters (rarely from 0.46 millimeters) long and 0.2 millimeters (rarely 0.18 to 0.23 millimeters) wide.

Systematics and distribution

Crassula viridis is distributed terrestrially at the edge of ponds and rivers or aquatic in shallow water in the United States in the states of Idaho and Arizona as well as in Mexico and Brazil .

The first description as Tillaea viridis by Sereno Watson was published in 1888. Marie Bywater and Gerald Ernest Wickens put the species in 1984 in the genus Crassula .

Another nomenclature synonym is Tillaeastrum viride (S.Watson) Britton (1903).

proof

literature

  • Ernst Jacobus van Jaarsveld: Crassula viridis . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 85 .

Individual evidence

  1. ^ Proceedings of the American Academy of Arts and Sciences . Volume 23, Number 2, 1888, pp. 272-273 ( online ).
  2. ^ Kew Bulletin . Volume 39, number 4, 1984, p. 718.

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