Pollen morphology of the South American genus Lessingianthus (Vernonieae, Asteraceae) and its taxonomic implications

Grana ◽  
2010 ◽  
Vol 49 (1) ◽  
pp. 12-25 ◽  
Author(s):  
María Betiana Angulo ◽  
Massimiliano Dematteis
1956 ◽  
Vol 4 (1) ◽  
pp. 13 ◽  
Author(s):  
KM Pike

The pollen grains of 300 species of 71 genera of the family Myrtaceae have been examined and their characteristic features summarized in tabular form. The investigation has been mainly concerned with those species that occur in the south-west, Pacific area, particularly Australia. For comparative purposes, the pollen morphology of a limited number of South American and two South African species has been included. The significance of pollen characters for distinguishing genera and species within the family is discussed. In some instances pollen morphology has provided additional evidence for the classification of certain species as suggested by taxonomists. A provisional key to pollen grains of the genera examined has been included.


2020 ◽  
Vol 105 (2) ◽  
pp. 183-194
Author(s):  
Fernando O. Zuloaga ◽  
Sandra S. Aliscioni ◽  
M. Amalia Scataglini

Generic boundaries of the South American species Panicum longipedicellatum Swallen are explored and compared with allied genera of the tribe Paniceae. On the basis of morphological, anatomical, and molecular characters a new genus, Cnidochloa Zuloaga, is proposed. The phylogenetic position of the new genus within the Paniceae is evaluated.


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