Example sentences for: disciform

How can you use “disciform” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • However, these two genera were removed from Artemisia s.l ., and on the basis of spiny pollen have been considered transitional between the Artemisia -group and four radiate genera: Tridactylina Arctanthemum, Brachanthemum, and Dendranthema . Our ITS phylogeny places disciform Ajania sister to radiate Arctanthemum derived from within the Arctanthemum-Dendranthema clade, rather than sister to the Artemisia -group.

  • Kaschgaria was removed by Poljakov from Artemisia s.l . on the basis of stellate corolla hairs, and was considered more closely related to Seriphidium than Artemisia s.s ., even though it is disciform rather than discoid [ 2 ] . Kaschgaria possesses spineless pollen [ 2 37 ] . Therefore, placement of Kaschgaria and Elachanthemum outside of the Artemisia -group is intriguing because if these placements remain robust, wind-pollination may have arisen more than once in the tribe, or insect-pollination may be secondarily derived within Subtribe Artemisiinae in the radiate genera (clade 3 of Fig.

  • Tridentatae [ 68 ] , and may explain occasional heterogamous disciform capitula in S. bigelowii [ 34 35 ] . However, there may be many genetic and developmental mechanisms that affect ray formation and control floret fertility [ 69 70 ] .

  • Thus, disciform Ajania does not appear to be intermediate between radiate Artemisiinae and disciform Artemisia and allies.

  • It is apparently defined taxonomically on the basis of plesiomorphies (heterogamous, disciform capitula with perfect/fertile disk florets and pistillate ray florets), and needs to be re-circumscribed.


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