Fig. 1: Morphological variation and geographical distribution of gnetophytes and some other gymnosperms.
From: A genome for gnetophytes and early evolution of seed plants
Top, left to right, female cones of G. montanum, male cones of W. mirabilis and female cones of E. equisetina. Scale bars, 5 cm. Bottom, pantropical distribution of the three gnetophyte genera, compared with three conifer species that are most abundant at higher latitudes and altitudes. The range of genomes sizes (1C-values) found in the three genera comprising gnetophytes and the three conifer species are also shown (data taken from http://data.kew.org/cvalues/ and unpublished data).
