Brachistus affinis
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| Brachistus affinis | ||||||||||||
| ( CVMorton ) D'Arcy , JLGentry & Averett |
Brachistus affinis is a plant type from the genus Brachistus in the family of the nightshade family (Solanaceae).
description
Brachistus affinis is a 2 to 6 m high shrub that is covered with tomentose hair with glandular, multicellular trichomes . The leaves are in pairs, they are similar in shape, but differ in size. Both sides of the leaf are tomentose, on the veins the hair is even more dense. The larger leaves are broadly ovate, 17 to 20 cm long and 9.5 to 11.5 cm wide. The tip is pointed, the base is heart-shaped. They stand on 2 to 7 cm long petioles that are hairy tomentose.
The inflorescences consist of seven to ten flowers standing in clusters on 1.2 to 2 cm long, tomentose-haired pedicels. The tomentose, hairy, slightly lobed calyx is about 3 mm long, but enlarges significantly until the fruit is ripe. The yellow crown is narrowly bell-shaped and 8 to 12 mm long. The edge of the corolla tube is tomentose, the coronet is lobed almost to the base. The stamens are set slightly above the middle of the corolla tube, their base is tomentose, their length is about 0.5 mm. The pointed anthers are about 2 mm long.
The fruit is a red berry with a diameter of about 5 mm that fits tightly to the enlarged calyx.
Occurrence
The species is known only from a few collections, it is probably endemic to Belize .
Botanical history
The species was first described in 1940 by Conrad Vernon Morton as Athenaea affinis based on a plant collected by CL Lundell in 1936. In the same publication, Morton described a species of Capsicum lundellii based on a plant from the same collection. In 1969 Athenaea affinis was moved by Armando Hunziker to a new section Brachistus of the genus Witheringia , so the species got the name Witheringia affinis . In the 1974 treatise on the nightshade family in the "Flora of Guatemala", the two species Witheringia affinis and Capsicum lundellii were combined into one species under the name Witheringia affinis . The three species of the Witheringia section created by Hunziker were given genus status again in 1981, so that the species was assigned the name combination Brachistus affinis , which is valid today, for the first time .
swell
- Johnnie L. Gentry Jr. and Paul Standley: Flora of Guatemala. Solanaceae , Fieldiana: Botany, Volume 24, Part X, Numbers 1 and 2. Field Museum of Natural History, 1974. (There as Witheringia affinis )
Individual evidence
- ↑ Armando T. Hunziker: The Genera of Solanaceae . ARG Gantner Verlag KG, Ruggell, Liechtenstein 2001. ISBN 3-904144-77-4 . Page 178-180.
- ^ WG D'Arcy, JL Gentry and JE Averett: Recognition of Brachistus (Solanaceae) In: Annals of the Missouri Botanical Garden , Volume 68, 1981. Pages 226-227.
- ↑ Compare Flora of Guatemala , Volume 24, Part X, Numbers 1 and 2, page 146.
Web links
- Herbarium of the type specimen from the Missouri Botanical Garden