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With an opposite leaf arrangement, two leaves arise from the stem at the same level (at the same node), on opposite sides of the stem. An opposite leaf pair can be thought of as a whorl of two leaves. With an alternate (spiral) pattern, each leaf arises at a different point (node) on the stem. Distichous leaf arrangement in Clivia
1. Referring to the arrangement of floral or foliar organs in a bud when each organ or segment has one edge overlapping the adjacent organ or segment; a form of imbricate arrangement. See contort. 2. (of leaves) A type of vernation in which one leaf is rolled up inside another. 3.
Chart illustrating leaf morphology terms The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets ). [ 1 ]
The genus has a leaf arrangement that is termed as alternate-distichous and the leaves are asymmetric in shape. The flowers have two lips. The older genus Klugia had four stamens compared to the typical two but Klugia from southern India are found to be very close based on molecular evidence. [2]
Chart illustrating 61 morphological terms describing leaf shape, margins and venation. While Diliff's mega-panoramas are a hard act to follow, I thought I would throw the metaphorical hat into the ring with this illustration. I created it with the desire to make a richly encyclopedic image/poster with lots of information about leaf morphology.
The term distichous literally means two rows. Leaves in this arrangement may be alternate or opposite in their attachment. The term 2-ranked is equivalent. The terms tristichous and tetrastichous are sometimes encountered. For example, the "leaves" (actually microphylls) of most species of Selaginella are tetrastichous but not decussate.
Distichirhops is a genus of flowering plant belonging to the family Phyllanthaceae.The genus comprises 3 species, found in the secondary forests of New Guinea and Borneo.The taxon name comes from Greek (distichos meaning "in two rows" and rhopo meaning "shrub"), referring to its distichous leaf arrangement and shrubby habit.
Juveniles have a distichous (two-ranked) leaf arrangement, with tubercled, strap-shaped, blunt leaves. Adults form rosettes of extremely long, smooth, sharply-pointed "scimitar-shaped" leaves which are green and extremely densely covered in bands of tiny white spots. The leaves also have rough partial margins.