Abstract
The location and structure of the septal nectaries in the flowers of <i>Allium aflatunense</i> B. Fedtsch. were studied. Light and scanning electron microscopy were used for examination. It has been shown that the septal nectaries are located in the lower part of the ovary and in the gynophore on which the ovary is borne. Nectar is secreted through the single-layered epidermis surrounding three nectary slits and nectar release occurs through three openings located at the base of the gynophore, which are the outlets of the ducts connected to the nectary slits. The expanded and fused bases of the stamen filaments and the tepals participate in secondary nectar presentation. In the flowers of <i>Allium aflatunense</i>, numerous purple elements: tepals, filaments, style and pedicle, perform the role of a colour attractant. On the intensely green ovary, there occur glistening conical outgrowths of epidermal cells, which may also function as signal attractants.
Highlights
The genus Allium L. (Alliaceae) includes 700 species and subspecies native to the Northern Hemisphere (Fritsch and Friesen, 2002)
In Allium aflatunense we found that there were 3 outlets in the lower part of the gynophore associated with nectar release
The septal nectaries are located in A. aflatunense in the lower part of the ovary and in the gynophore
Summary
The genus Allium L. (Alliaceae) includes 700 species and subspecies native to the Northern Hemisphere (Fritsch and Friesen , 2002). Many garlic varieties originating from southern Europe and Asia have found application as border plants or cut ornamental plants (Maurizio and Grafl , 1969). These plants are characterized by high frost resistance and low fertilization requirements (Krzymińska , 2003). The flowering period is from May to June. This species is grown on a wide scale in soil and in greenhouses for cut flowers. The most common cultivar Purple Sensation produces inflorescences with a length of 70-90 cm, bearing purple-violet flowers (B i j l , 1995; Friesen et al 1997)
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