Stephen Chapman Clemesha

Dendrobium racemosum, commonly known as the erect pencil orchid, is a species of orchid endemic to tropical North Queensland. It is an epiphytic or lithophytic orchid with yellowish stems, cylindrical dark green leaves and flowering stems with between eight and fifteen cream-coloured to pale yellow flowers with a thread-like tip on the labellum. It grows on trees and rocks in exposed positions in highland areas and in the tops of rainforest trees at lower altitudes.

Pterostylis stricta, commonly known as the northern greenhood, is a species of orchid endemic to Queensland. It has a rosette of leaves and when flowering a single translucent white flower with green lines, a reddish-brown tip and a curved, protruding labellum.

Pterostylis hamata, commonly known as the southern hooked rustyhood, is a plant in the orchid family Orchidaceae and is endemic to eastern Australia. It has a rosette of leaves and between two and twelve transparent flowers with green and brown markings, a thick, brown, insect-like labellum and dished lateral sepals.

Pterostylis biseta, commonly known as the bristled rustyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves at its base and up to seven relatively large, translucent flowers with green and brown marking with a brown to green insect-like labellum with bristly hairs. It occurs in New South Wales, South Australia and Victoria although in the latter state it has been separated into three species and is also under review in New South Wales.

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Pterostylis oreophila, commonly known as the Kiandra greenhood or blue-tongued greenhood is a species of orchid endemic to south-eastern Australia. Flowering and non-flowering plants have three to five dark green, fleshy leaves and flowering plants have a single green and white, sickle-shaped flower with a deeply notched, bulging sinus between the lateral sepals.

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