Indumentum studies and types of crystals in some species of the genera from the tribe Brassiceae for the family Cruciferae in Iraq | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 17, Issue 1, March 2012, Pages 118-129 | ||
| Author | ||
| Niglaa Mustafa Al-Abide | ||
| Abstract | ||
| Most of the previous investigations have been done on the taxa of the Cruciferae focused on morphological and anatomical sides of seeds and Pollen-grains as wall as on chemical data. The present study illustrated the importance of Indumentum and crystals characters of 12 species(10 genera) of the tribe Brassiceae (family Cruciferae ) in Iraq. These species are : Cakile arabica vel. et Bornm Carrichtera annua (L.) Dc.; Diplotaxis acris (Fossk.) Boiss. ; D. erucoides (L.)Dc. ;D. harra (Fossk) Boiss ; Eruca sativa Mill. ; Erucaria cakiloidea (Dc.)o. E. Schulz ; Hirschfeldia incana (L.)Lag. ;Raphanus sativus L. ;Rapistrum rugosum (L.) All. ;Savignya parviflora (Del.) Webb. ;Sinapis arvensis L. The investigation includes Shapes , types and distribution of the trichomes and crystals in all parts of whole plant examined Special characters are reported for the first times of the trichomes such types of bases wall-thickness and surface features also illustrated the immersion of the trichomes base among the epidermal cells. Four principal categories of calcium oxalate crystals were recognised : Stellate (druses) ;Prismatic , Sand crystals and single needles (Raphides). As well as the study comprises the stomata and epidermal cells of stems , Leaves (Upper& lower surface) and midribs. The study focused on shapes , size , stomata complex types and stomatal- index .Trichomes and stomata has agreat diagnostic valus in species studies. | ||
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