16

Articles yellow-green, 5–11 mm long; spikes 0.2–2.5 cm long.

Male bracteoles persistent; male spikes <2.5 cm long; anthers 0.7–0.9 mm long. | Male bracteoles persistent; male spikes <2.5 cm long; anthers 0.7–0.9 mm long.

Teeth overlapping. | Teeth not overlapping.

| Shrub 0.5–3 m high; bark smooth or slightly fissured.

| Furrows glabrous.

Ridges without median groove or groove present only near base of article (in A. brachystachya). | Ridges without median groove or groove present only near base of article (in A. brachystachya).

Ridges smooth; male bracteoles persistent except in A. gymnanthera. | Ridges smooth; male bracteoles persistent except in A. gymnanthera.

17

Anthers 0.7–0.8 mm long; c. 5 male whorls per cm; articles ≥ 5 mm long.

| Articles yellow-green, 5–11 mm long; spikes 0.2–2.5 cm long.

Male bracteoles persistent; male spikes <2.5 cm long; anthers 0.7–0.9 mm long. | Male bracteoles persistent; male spikes <2.5 cm long; anthers 0.7–0.9 mm long.

Teeth overlapping. | Teeth not overlapping.

| Shrub 0.5–3 m high; bark smooth or slightly fissured.

| Furrows glabrous.

Ridges without median groove or groove present only near base of article (in A. brachystachya). | Ridges without median groove or groove present only near base of article (in A. brachystachya).

Ridges smooth; male bracteoles persistent except in A. gymnanthera. | Ridges smooth; male bracteoles persistent except in A. gymnanthera.

22

Articles of same diam. throughout their length, not waxy; male spikes moniliform.

| Teeth broad- to narrow-triangular, ± straight-sided; articles often with a waxy bloom. Male spikes 0.5–5 cm long; 5–10 whorls per cm.

| Articles 0.8–1.0 mm diam., ridges rounded-convex to somewhat angular; male spikes moniliform; rare species confined to Sydney Harbour N.P.

| Teeth not overlapping.

| Shrub 0.5–3 m high; bark smooth or slightly fissured.

| Furrows glabrous.

Ridges without median groove or groove present only near base of article (in A. brachystachya). | Ridges without median groove or groove present only near base of article (in A. brachystachya).

Ridges smooth; male bracteoles persistent except in A. gymnanthera. | Ridges smooth; male bracteoles persistent except in A. gymnanthera.