Lomatogonium

Tauern Carinthia floret ( Lomatogonium carinthiacum )

The Tauern flowers or Saumnarben ( Lomatogonium ) are a genus within the family of Gentian Family ( Gentianaceae ). The Holarctic distribution range of 18 to 21 species North America and temperate Eurasia.

  • 3.1 Notes and references

Description

Vegetative characteristics

Lomatogonium species grow as annuals or perennial herbaceous plants. Some species form rhizomes as outlasting. Every few lateral roots either go from one main root, or they are fleshy and are formed on the rhizomes. The prostrate, ascending to erect stems are branched to unbranched and have stripes or edges. The decussate leaves are simple.

Generative features

The flowers are borne terminally singly or usually in a terminal or pendent zymösen inflorescences. The flower stalk is usually longer than the flower. The hermaphrodite flowers are radial symmetry and usually five, rarely four or zehnzählig. The usually five sepals are fused at least at their base. The most five white, pale - blue to blue, clear two-tone petals are fused at least at their base. Each petal has two ciliated nectary at its base. It's just a circle with usually five (rarely four or ten) stamens present. The slightly flattened stamens are attached to the base of the corolla tube and do not tangle spiral. The mostly blue, rarely yellow anthers are most as long as the stamens. The ovary are sword-shaped, cylindrical or ovoid - ellipsoid. It is not a pen available. In the seated scars the stigma lobes run down the ovary seams.

The bivalved capsule fruits contain many seeds. The seed coat is almost smooth.

Systematics and distribution

The genus Lomatogonium 1830 was established by Addison Brown in Flora, 13, pp. 221. Synonyms for Lomatogonium A.Br. are: Pleurogyne Eschscholtz ex Chamisso & Schlechtendal, Swertia subgen. Lomatogonium ( A.Braun ) Satake, Pleurogynella Ikonnikov. The genus belongs to the subtribe Lomatogonium Swertiinae from the tribe Gentianeae within the family Gentianaceae.

The genus name is derived Lomatogonium from the Greek words loma, lomatos for hem and gonia for a corner, and refers to the run-down on the ovary scars. Even the German trivial name Saumnarbe refers to this feature.

The Holarctic distribution area includes North America and temperate Eurasia. The center of biodiversity with 16 species in China. Only two species occur in Europe. The only Central European representative is the Tauern Carinthia floret ( Lomatogonium carinthiacum ).

The genus Lomatogonium are 18 to 21 species (here with their distribution ):

  • Lomatogonium bellum ( Hemsl. ) Harry Sm: It grows at altitudes 1300-3200 meters in the western Hubei, southern Shaanxi, eastern Sichuan and Yunnan.
  • Lomatogonium brachyantherum ( CBClarke ) Fernald: It grows in the southwestern Gansu, Qinghai, Xizang, Afghanistan, Bhutan, India, Pakistan, Kashmir, Nepal and Sikkim.
  • Lomatogonium caeruleum ( Royle ) Harry Sm ex BLBurtt: It grows in the Himalayas.
  • Tauern Carinthia floret ( Lomatogonium carinthiacum ( Wulfen ) Rchb. ): The wide circulation area covers Europe, Russia, Afghanistan, India, Pakistan, Japan, Kyrgyzstan, Tajikistan, Mongolia and China.
  • Lomatogonium chilaiensis CHChen & JCWang: It grows only at altitudes 3100-3400 meters in Taiwan.
  • Lomatogonium chumbicum ( Burkill ) Harry Sm: It thrives in southern Tibet, Bhutan, Nepal and Sikkim.
  • Lomatogonium deltoid ( Burkill ) C.Marquand
  • Lomatogonium forrestii ( Balf. f ) Fernald: It grows at altitudes between 2000 and 4000 meters in Guizhou, Sichuan and Yunnan.
  • Lomatogonium gamosepalum ( Burkill ) Harry Sm: It occurs in Nepal and China. In China, it thrives at altitudes 2800-4700 meters.
  • Lomatogonium lijiangense TNHo: This endemic species grows only at altitudes 2200-3200 meters in Lijiang Naxizu Zizhixian in Yunnan.
  • Lomatogonium longifolium Harry Sm: It grows at altitudes 3400-4200 meters in the southern Sichuan, Xizang eastern and northwestern Yunnan.
  • Lomatogonium macranthum ( Diels & Gilg ) Fernald: It thrives in China, Bhutan, Nepal and Sikkim.
  • Lomatogonium micranthum Harry Sm: It thrives in southeastern Tibet and Nepal.
  • Lomatogonium oreocharis ( Diels ) C.Marquand: It grows at altitudes 3000-4800 meters in the southeastern Xizang and northwestern Yunnan.
  • Lomatogonium perenne TNHo & SWLiu: It grows at altitudes 3900-4400 m in Qinghai ( Jigzhi Xian), Shaanxi ( Taibai Shan ), western Sichuan, eastern Xizang, northwestern Yunnan.
  • Lomatogonium rotatum (L. ) Fr ex Fernald: It has a wide distribution area in China, Japan, Kazakhstan, Mongolia, Russia, Europe and North America.
  • Lomatogonium sichuanense ZYZhu: You only occurs in Sichuan.
  • Lomatogonium sikkimense ( Burkill ) Harry Sm: It thrives in Tibet ( Yadong Xian), Bhutan, Nepal and Sikkim.
  • Lomatogonium spathulatum ( A.Kern. ) Fernald: It occurs in Pakistan.
  • Lomatogonium stapfii ( Burkill ) Harry Sm: It thrives in the southern and southeastern Tibet, Bhutan and eastern India.
  • Lomatogonium zhongdianense SWLiu & TNHo: It is endemic only at altitudes of about 3300 meters in Zhongdian Xian in Yunnan.

Swell

  • Ting- tion Ho & James S. Pringle: Gentianaceae. Lomatogonium, pp. 124-128 - text the same online as printed work, In: Wu Zheng -yi and Peter H. Raven (eds.): Flora of China, Volume 16 - Gentianaceae through Boraginaceae, Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 1995. ISBN 0-915279-33-9 (Sections Description and systematics) (sections systematics and description)
Asterids Gentianales Perennial plant Ovary (botany) Stigma (botany) Tibet Autonomous Region Agricultural Research Service
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