FIGURE 1. Gackstroemia novae-zelandiae R.M.Schust. & J.J.Engel. 1 in Austral Hepaticae 50. Gackstroemia in New Zealand, together with an interesting new species

FIGURE 1. Gackstroemia novae-zelandiae R.M.Schust. & J.J.Engel. 1. Sector of shoot with Frullania-type branch (note first branch underleaf), ventral view. Note also the flattened, lamelliform stylus. 2. Leaf pair of main shoot, dorsal view; note dorsally interlocking insertion lines and reflexed dorsal margin of dorsal lobes. 3, 4. Leaves from main shoot (dm = dorsal margin). 5. Median leaf cells. 6. Dorsal margin of leaf from main shoot. 7. Underleaf, in situ of main shoot (drawn to same scale as fig. 1). 8. Underleaf. 9, 10. Distal sector of underleaf lobes. 11. Tertiary branch (= 3º br) showing explanate lobes of first branch underleaf (= fbu) and explanate underleaves of branch, ventral view (LB = leaf base). (Fig. 3 from Engel 21925, New Zealand, South Is., Otago Prov., Mt. Aspiring Natl. Park, Blue Valley Track; remainder from holotype.)