Primula florindae

Tibet Primrose (Primula florindae )

The Tibet Primrose (Primula florindae ) is a plant from the family of Primulaceae ( Primulaceae ). It is native to Tibet, and is used as an ornamental plant.

• 5.1 Notes and references

Description

Appearance and foliage leaf

The Tibet - primrose is a perennial herbaceous plant with plant height of 30 to 120 centimeters.

The in a basal rosette standing together leaves are divided into petiole and leaf blade. The petiole has a length of 3 to 30 centimeters. The thin paper-like, bare leaf blade is heart-shaped with a length of 3 to 15 ( to 20) inches and a width of 4 to 11 ( to 15) centimeters wide ovate - oblong to elliptic and the Spreitengrund. The upper leaf surface is bare and the lower leaf surface is sparse tiny, glandular- hairy. The Spreitenrand incised and water separating the Spreitenspitze shows rounded.

Generative features

The flowering period extends from June to July. The strong, 30 to 120 centimeters long inflorescence stem is glabrous or occasionally in the upper part slightly mealy. The doldige inflorescence contains 15 to 30 ( 10 to 80 ) flowers and with a length of 1 to 3 centimeters wide, lanceolate to oblong, often toothed bracts, which are bumpy at their base. The more or less yellow floury flower stalks are 2 to 10 inches long.

The hermaphrodite flowers are radial symmetry and fünfzählig double perianth. The five 8 to 10 mm long sepals are up about two-thirds of their length deformed bell-shaped and abundant yellow mealy; the calyx teeth are triangular with a sharp tip. The 1.7 to 2.5 inches wide crown is colored yellow and is on drying ( ie in herbarium specimens ) often green. The 1 to 2 centimeters wide coronary band has inverted - ovate -oblong to broadly ovate wrong, easy ausgerandete Corolla lobe. The flowers are heterostyl: either the corolla-tube longer than the calyx, the stamens spring from about 2.5 mm above the base of the corolla tube and the pen is about as long or slightly longer than the corolla tube or the corolla tube is about twice as long as the calyx, the stamens spring from the uppermost portion of the corolla tube and the stylus is about 1.5 mm long.

The cylindrical capsule fruit is slightly longer than the calyx. The fruits ripen from July to August.

The chromosome number is 2n = 22

Dissemination

The Tibet - primrose is native to eastern Tibet. It grows at altitudes 2600-4000 meters and settled wet areas such as river banks, marsh edges and wet spruce forests.

System

The first description of Primula florindae in 1926 by Kingdon -Ward in Notes from the Royal Botanic Garden, Edinburgh, Volume 15, 72, pp. 84-85. Primula florindae belongs to the section sikkimensis in the subgenus within the genus Primula Aleuritia.

Use

The Tibet - primrose is used as an ornamental plant.

Swell

• Qiming Hu & Sylvia Kelso: Primulaceae. In: Wu Zheng - Yi & Peter H. Raven (eds.): Flora of China. Myrsinaceae through Loganiaceae. Volume 15, Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 1996, ISBN 0-915279-37-1 ISBN, Primula florindae, S. 149 (text identical with printed work, Primula florindae - Online). (Section Description and dissemination )