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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
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 arrangement of the floral parts on the axis, the presence or absence of one or more floral parts, the size, the pigmentation and the relative arrangement of the floral parts are responsible for the existence of a great variety of flower types. Such diversity is particularly important in phylogenetic and taxonomic studies of angiosperms.
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.
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.
Gasteria carinata var. verrucosa Gasteria carinata var. glabra, the smooth-leaved variety Gasteria carinata var retusa, a distichous variety from near Worcester.. This is a variable species, with a range of officially defined varieties, and also with several unofficial forms - several of which have become popular ornamental cultivars.
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]