Spiranthes praecox Rich.

submitted by: Timothy M. Jones
Spiranthes praecox, greenvein lady's tresses, is an orchid native to eastern North America, from eastern Texas to New Jersey. Though many members of the genus are difficult to identify, this species is readily distinguished by the green veins on the lip of the flower. A yellow veined form is also known (C.J. Sheviak and P.M. Brown. In: Flora of North America. Vol 26, 2002). Plant 15-80 cm tall; with mostly linear leaves (1 - 5 mm wide) often hidden in leaf litter; inflorescence...

Orchidaceae Morphology: Oncidium cultivar

submitted by: Timothy M. Jones

Orchid morphology of Oncidium. Structures labeled include: petals; sepals; callus; column; column wings; stigma; pollinia and anther cap. Includes a dissection that removes the anther cap to expose the pollinia.