Hypericum thuyoides
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Illustration of the first description |
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| Kunth |
Hypericum thuyoides is a plant species native to Colombiafromthe St. John's wort family (Hypericaceae).
description
Hypericum thuyoides is a shrub that reaches a height of between 1 and 3 meters. The trunk is erect and branches out diffusely. The long with a 0.8 mm pseudo-petiole attached leaves are diffuse and are approximately at right angles from. The ovate to elliptical leaf blade is about 2.4 to 3.2 millimeters long and 1.6 to 3.6 millimeters wide. In the connecting plane to the flowers, the leaf blade is folded lengthways. At the base of the sheet, the otherwise wavy edges form an angle between 45 ° and 90 °. The edges are also slightly dry and partially translucent through a membrane. The surface of the leaf is transparent with dots, the tip is obtuse angled . The central axis is clearly visible on the underside of the sheet.
The hermaphrodite flowers are 20 to 30 mm in diameter. The oval to elliptical sepals measure 4.8 to 6.4 millimeters in length and 2 to 3.2 millimeters in width. Its tip is acute to obtuse angled and its edge is dry and translucent membranous. The at the tip oblique petals are between 1.3 and 1.5 millimeters long and 0.8 to 1.1 centimeters wide. Of the 100 to 120 stamens , the longest are 5 to 6 mm long. The ovary is between 2.8 and 3 millimeters in size, with the stylus on top measuring more than 5 millimeters. The scar is a bit heady. The capsule fruits have a size of about 3 to 5 × 2 mm. The flowering period extends from April to September, followed by fruit ripening from November to February.
Occurrence
Hypericum thuyoides is native to Colombia . It is endemic to the Páramo in the Bogotá area at altitudes between 2500 and 3600 meters. There this species grows in bushes.
Systematics
The species was first described by Karl Sigismund Kunth in 1821 .
swell
- Pedraza Peñalosa, Luisa Paola: Las plantas con flores de los alrededores de la laguna de Chisacá p. 94.Bogotá 2000.
- Norman KB Robson: No 1 Studies in the genus Hypericum L. (Guttiferae) 7. Section 29. Brathys (part 1) in Bulletin of the British Museum, Botany series Vol. 16 1987, British Museum (Natural History) London 1987: online text Page 37-38. (engl.)
Individual evidence
Most of the information in this article comes from the sources given under Sources, and the following are also cited:
- ↑ See entry at IPNI
