Xeronema

Inflorescence of Xeronema callistemon.

Xeronema is the only genus of the mono- generic family of Xeronemataceae within the monocot plants ( Liliopsida ). There are only two species in the genus, and thus in the family. The two species have a disjoint area in the southwest Pacific: New Caledonia and two islands off the northern coast of the North Island of New Zealand. They are rarely used as ornamental plants.

Description

Xeronema species grow as large, upright, perennial herbaceous plants. The plants form rhizomes as outlasting. The alternate and distichous arranged leaves are sessile and easy. The bifacial, flat, leathery leaf blade is lanceolate and parallel-veined. The leaf margin is smooth.

The flowers are close to many together in terminal, aged men inflorescences and are oriented upward. Bracts are present. The large radial symmetry flowers are hermaphroditic and threefold. The six equally diverse bloom ( tepals ) are carmine. There are two circles, each with three free, fertile stamens present; they extend beyond the petals far. The boat-shaped pollen is monosulcat. The three carpels are fused into a superior ovaries. The style ends in a scar.

The purple, dreifächerigen capsule fruits contain many black seeds.

Systematics and distribution

The genus Xeronema was formerly classified in the families of Asphodelaceae, Hemerocallidaceae, Liliaceae and Phormiaceae. The Xeronemataceae family was only in 2000 by Mark Wayne Chase, Paula Rudall and Michael Francis Fay in Xeronemataceae, a new family of asparagoid lilies from New Caledonia and New Zealand, in Kew Bulletin, Volume 55, Issue 4, 2000, pp. 865-870. positioned.

In the genus Xeronema there are only two types:

• Xeronema callistemon WRBOliv. This species is native to two islands off the northern coast of the North Island of New Zealand (on the Poor Knights Islands and on Taranga one of the Hen and Chickens Islands ).
• Xeronema moorei Brongn. & Gris: The home is New Caledonia.

Swell

• The Xeronemataceae in APWebsite ( section systematics and description) family.
• Mark Wayne Chase, Paula J. Rudall, Michael Francis Fay: Xeronemataceae, a new family of asparagoid lilies from New Caledonia and New Zealand. In: Kew Bulletin. Volume 55, No. 4, 2000, pp. 865-870, JSTOR 4113631 (Sections Description and systematics).