It remains to be seen if the ovuliferous cone in the centre of the flower represents simply a functionless gynoecium, as in Welwitschia and abnormal cones of certain Coniferae, or if the flowers were hermaphrodite, with both male and female organs fully developed.
The Coniferae include no fewer than 94 species of Cupressineae and 17 of Abietineae, including several species of Sequoia.
The leaves as a rule far exceeded in size those of any of the Coniferae, attaining in some species a length of a metre.
True Coniferae, though some resemblance to the stamens of Araucarieae may be traced.
Now that the numerous specimens of wood formerly referred to Coniferae are known to have belonged to distinct orders, but few true Palaeozoic Conifers remain to be considered.