Pterostylis R.Br.
Dorsal sepal and lateral petals fused to form a hood (Fig. 44) Pterostylis
Basal leaves in a cluster or rosette encircling the base of the stem, always present at flowering time. Cauline leaves reduced to sheathing bracts or well developed and scattered
Basal leaves in a cluster or rosette usually separated from the flowering stem, sometimes attached to its base by a short scape, but very rarely encircling it and often present at flowering time. Cauline leaves alternate, reduced to scales near the base, usually well developed above but occasionally bract-like