Hesperocodon hederaceus

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Ivy bog bells
Ivy bog bell (Hesperocodon hederaceus)

Ivy bog bell ( Hesperocodon hederaceus )

Systematics
Euasterids II
Order : Astern-like (Asterales)
Family : Bellflower family (Campanulaceae)
Subfamily : Campanuloideae
Genre : Hesperocodon
Type : Ivy bog bells
Scientific name of the  genus
Hesperocodon
Eddie & Cupid
Scientific name of the  species
Hesperocodon hederaceus
( L. ) Eddie & Cupid

The ivy bog bell ( Hesperocodon hederaceus (L.) Eddie & Cupido , Syn .: Wahlenbergia hederacea (L.) Rchb. ) Is the only species of the plant genus Hesperocodon within the bellflower family (Campanulaceae).

description

Illustration from storm

Vegetative characteristics

The ivy bog bell is a perennial herbaceous plant and can reach heights of 2 to 5 centimeters. The prostrate to creeping, filamentous stems 5 to 25, at most 30 centimeters, and roots are formed on them. The above-ground parts of the plant are bare.

The alternate leaves are arranged in a petiole and a leaf blade. The petiole is relatively long. With a length of 5 to 15 millimeters and a width of 5 to 12 millimeters, the leaf blade is circular to kidney-shaped or rounded-angular (ivy-like) with a heart-shaped base and it is weakly five-lobed.

Generative characteristics

The flowering period is between July and September. The nodding flowers stand individually in the leaf axils. The flower stalks are thin and up to 10 centimeters long and protrude far beyond the bract .

The hermaphrodite flowers are five-fold with a double flower envelope . The calyx is 2 to 3 millimeters long and the calyx lobes are narrow. The five petals are fused bell-shaped. The pale-blue with darker veins corolla to a 6 to 10 millimeter long and 5 to 8 millimeter wide. The five pointed corolla lobes are usually shorter than the corolla tube. There is only one (the outer) circle with five fertile stamens . The free, hairy stamens are hardly broadened downwards (in contrast to Campanula and Adenophora ). The style ends in three to five short scars.

The upright, spherical capsule fruit with a length of about 3 millimeters opens with rarely three to, usually five longitudinal slits (in contrast to Campanula , in which it opens with three lateral pores).

The number of chromosomes is 2n = 36.

Occurrence

The ivy bog bell is found in western and southwestern Europe. Its distribution area includes the countries Portugal , Spain , France , Great Britain , Ireland , Belgium , Germany and earlier also the Netherlands.

It thrives in low and spring moors rich in rushes, on ditches, in peat moss cushions, in alder quarries on soaked, lime-poor, moderately acidic, sometimes peaty, swamp humus soils in mild winter humid climates . It is a character species of the Juncion acutiflori association and also occurs in societies of the Caricion fuscae association.

Systematics

The first publication of Campanula hederacea was in 1753 by Carl von Linné . The specific epithet hederacea means ivy-like and refers particularly to the shape of the leaves. Since 1827 this species has been known as Wahlenbergia hederacea (L.) Rchb. placed in the genus Wahlenbergia Schrader ex Roth . It was only through Eddie & Cupido in 2014 that it was proven that it should be better separated from this genus and placed in its own genus Hesperocodon Eddie & Cupido as Hesperocodon hederaceus (L.) Eddie & Cupido . Other synonyms for Hesperocodon hederaceus (L.) Eddie & Cupido are: Wahlenbergia hederifolia (Salisb.) Bubani nom. superfl., Campanula hederifolia Salisb. nom. superflat., Roucela hederacea (L.) Dumort. , Schultesia hederacea (L.) Roth , Valvinterlobus filiformis Dulac nom. superfl., Aikinia hederacea (L.) Salisb. ex Fourr. , Campanopsis hederacea (L.) Kuntze , Cervicina hederacea (L.) Druce .

ecology

The ivy bog bell is a humus root . The pollination is done by insects .

swell

Individual evidence

  1. ↑ a b c d e f g h i j k l m Wahlenbergia hederacea (L.) Rchb., Ivy bog bell. In: FloraWeb.de.
  2. ↑ a b Rafaël Govaerts (Ed.): Hesperocodon hederaceus. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 11, 2015.
  3. ↑ a b c d e f g h i j k l m Thomas Gaskell Tutin : Wahlenbergia Schrader ex Roth. In: TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 4: Plantaginaceae to Compositae (and Rubiaceae) . Cambridge University Press, Cambridge 1976, ISBN 0-521-08717-1 , pp.  98–99 (English, limited preview in Google Book Search).
  4. ↑ a b c Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp.  898 .
  5. ↑ WMM Eddie, CN Cupido: Hesperocodon, a new generic name for Wahlenbergia hederacea (Campanulaceae): Phylogeny and capsule dehiscence. In: Edinburgh Journal of Botany. Volume 71, Issue 1, 2014, pp. 63-74. doi : 10.1017 / S0960428613000310

Web links

Commons : Ivy bog bells ( Hesperocodon hederaceus )  - Collection of images, videos and audio files