Martin and Drew 1969

Image No. Family Species Class Sculpture
73 Compositae Verbesina enceloides tricolporate echinate
74 Compositae Chaenactis stevioides tricolporate echinate
75 Compositae Artemisia tilessii tricolporate echinate
76 Compositae Senecio neomexicanus tricolporate echinate

UofAz Palynology