FIGURE 2. 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 2. Gackstroemia novae-zelandiae R.M.Schust. & J.J.Engel. 1. Portion of main shoot with gynoecium pseudolateral in position through growth of a pseudo-innovation (= pi); note also the Frullania-type branch (= FB; hl = half leaf), (dorsal view). The gynoecium forming a sporophyte-bearing coelocaule tightly invested by mutually, strongly imbricated bracts and bracteoles. Note form of capsule valves are coherent at apex, both in wet and (to left) dry conditions. 2. Coelocaule (dorsal view) with bract insertions indicated by scars, and, at summit, a perianth-like structure (the bract margins not fused on the ventral side, see fig. 3). Note also the copious cilia at the perianth mouth. 3. Ventral side of a perianth-like structure shown in fig. 2, note that bract margins are not fused. 4. Portion of perianth mouth. 5. Cilia of perianth mouth. 6. Capsule wall, cross section, the outermost layer of intermediate cells ± in tact, but those within for the most part collapsed. 7. Capsule wall, outer layer. 8. Capsule wall, inner layer. 9. Spore and to left, portion of elater drawn to same scale. 10. Elater. (All from holotype.)