Martin and Drew 1969
Image No.
Family
Species
Class
Sculpture
5
Pinaceae
Picea engelmannii
vesiculate
alveolate
6
Pinaceae
Abies concolor
vesiculate
alveolate
7
Cupressaceae
Juniperus deppeana
inaperturate
gemmate
8
Ephedraceae
Ephedra trifurca
polyplicate
psilate
UofAz Palynology
