Geodorum Densiflorum

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Plant of the Month - February by Allan Carr Geodorum densiflorum shepherd’s crook orchid Pronunciation: jee-oh-DOR-um dense-ee-FLOR-um ORCHIDACEAE Derivation: Geodorum, from the Greek, ge – earth and doron – a gift (“a gift of the Earth”, referring to its terrestrial habit); densiflorum, from the Latin, densus – thick, flos – flower (a reference to crowded flowers in the inflorescence). Raceme of flowers Flower showing labellum Ribbed fruits Geodorum is a genus of about 16 species distributed through Asia, South-east Asia and Polynesia with this one species in Australia from northern WA, through NT and down through coastal Qld to northern NSW. Description: G. densiflorum is a terrestrial orchid with a fleshy rhizome, rounded pseudo- bulbs and several broad leaves. It is one of the most visible and widespread ground orchids of south-east Qld. Leaves to 350 mm x 90 mm are lime-green on a stem to 150 mm and are pleated longitudinally. There are usually 3 to 5 of these lily-like leaves, the uppermost being the longest. In the cooler months the leaves of the dormant plant stand out in the understory. Flowers in an upside-down, crowded *raceme of 8 to 20 are pale pink and 20 mm across on a spike to 30 cm from November to February. These arise from a new *pseudo-bulb separate from the leaf-bearing stem. The flowers being upside-down places the *labellum in position to perform its function of attracting pollinators. Fruits are rugby football-shaped capsules to 50 mm long with longitudinal ribs. These contain 6 to 8 kidney-shaped seeds. *raceme = an unbranched flower stem with flowers on stalks *pseudo-bulb = false bulb *labellum = a lip, the distinctive median petal that serves as a landing platform for pollinating insects Habit .

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90. GEODORUM Jackson, Bot. Repos. 10: Ad T. 626. 1811. 地宝兰属 Di Bao Lan Shu Chen Xinqi (陈心启 Chen Sing-Chi); Phillip J
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