Eucalyptus macrocarpa
Eucalyptus macrocarpa
Eucalyptus macrocarpa is a species of plant in the myrtle family ( Myrtaceae ). It occurs in the southwest and west of Western Australia, where it is "Blue Bus ", " Desert Mallee ", "Small - leeaved Mottlecah ", " Mallee Rose" or " Rose of the North " called.
Description
Appearance and leaf
In Eucalyptus macrocarpa is available Heterophyllie. The leaves are always divided into petiole and leaf blade. At middle-aged specimens, the leaf blade is broad - lanceolate to ovate, straight, entire, dull and gray-green. The on top and bottom of the same color blue green floured or frosted leaf blades of adult specimens are straight, broad - lanceolate, elliptic or ovate, relatively thick, entire, and it can be heart-shaped or rounded at the Spreitenbasis or taper to Spreitenbasis out; its upper end is blunt, rounded or emarginate. The barely visible lateral nerves go off at an obtuse angle from the midrib. The cotyledons ( cotyledons ) are in two parts.
Inflorescence, flower and fruit
Page Constantly on a terete in cross section inflorescence stem are just a big flower in a simple inflorescence. The flower bud is egg-shaped and not blue green flour dusted or frosted The sepals form a calyptra, which drops early. The smooth calyptra is hemispherical or conical, three times as long as the smooth flower cup ( hypanthium ) and as wide as this one. The bloom is off-white pink or red. The heyday of Western Australia extends from August to December, January, April or June.
The fruit is semi-spherical or spindle-shaped, the disc is lifted and the fruit of subjects stand out.
Occurrence
Eucalyptus macrocarpa comes the southwest and west of Western Australiavor. Eucalyptus macrocarpa occurs in the autonomous administrative districts Bruce skirt, Coorow and Quairading in the Mid West and Wheatbelt regions.
Eucalyptus macrocarpa grows on gray sand or sandy loam soils over laterite on slopes or ridges or sandy plains.
System
The first description of Eucalyptus macrocarpa in 1842 by William Jackson Hooker Icones Plantarum in Volume 5, panels 405, 406 and 407 The type material has the caption " Guangan; Swan River Colony, Australia. Mr. J. Drummond "on. The specific epithet macrocarpa is composed of the ancient Greek words "macro " for large and " carpos " for fruit.
There are two subspecies of Eucalyptus macrocarpa Hook.:
- Eucalyptus macrocarpa subsp. elachantha Brooker & Hopper, syn. Eucalyptus macrocarpa subsp. elachantha Brooker & Hopper nom. inval. smaller fruit (diameter <45 mm)
- Eucalyptus macrocarpa Hook. subsp. macrocarpa: larger fruit (diameter > 47 mm )
There are natural hybrids of Eucalyptus macrocarpa Eucalyptus drummondii and with Eucalyptus pyriformis.
Use
Eucalyptus macrocarpa is used because of their large, colorful flowers and its shrubby growth as an ornamental plant in gardens. It needs a dry soil ( no water ) and a frost- free climate. Then it can be easily grown from seed.