Orchid Information - Genus Dendrobium section Diplocaulobium subsection Regale

Genus Dendrobium Sw. sect. Diplocaulobium Rchb.f. subsect. Regale de Vogel, INEDIT. Type species: Dendrobium regale Schltr..

Synonyms:

IN PREPARATION

Plants tufted, epiphytic. Rhizome short, creeping. Pseudobulbs on a plant all of similar size and all potentially fertile, crowded on the rhizome; the base more or less swollen, gradually tapering into a (usually?) more or less flattened, slender long top part which at the very top abruptly widens into a (more or less?) distinct collar. Leaf erect, dorso-ventrally flattened, usually rather thin. Inflorescences arising in succession, 1-flowered, with a terminal floral bract; spathe laterally compressed. Flowers small to median size, , ephemeral, wide open, white with yellow on the lip, magenta ro rfeddisch; not turning pink to purplish to the end of anthesis. Pedicel and ovary long, slender. Sepals and petals spreading widely. Median sepal erect or recurved, oblong-ligulate. Lateral sepals falcate, widely opening, erect or recurved, oblong-ligulate. Petals erect or recurved, obliquely elliptic, almost twice as broad as the sepals. Lip more or less clearly divided in a hypochile with lateral lobes and an epichile; keels on the hypochile 2, more or less straight, not undulating; dome-shaped farinose callus on the lip absent, although pubescence may be present between the keels. Column compact, with curved column foot; clinandrium 3-lobulate; anther cap-shaped; pollinia 4.

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