Peristeria elata ペリステリア・エラータ

Peristeria elata is a species of orchid occurring from Central America to Ecuador and Venezuela. It is the type species of its genus.
It has ovoid pseudobulbs up to 12 cm high, elongated, not fat and with four leaves that reach up to one meter of length and 15 cm of width, folded. Flowers emerge from the base of the bulb and produce 4 to 12 flowers with an intense marble white color, with purple spots and the anther and pistil are yellow. The central part of the flower is ornated with a well defined dove shape. Its perfume is similar to beer.(wikipedia)

パナマの国花で、和名は「ハトラン」です。