Vanda arbuthnotiana is an species in the genus Vanda.
This new vanda was sent from the Malabar Coast to Messrs.F. Sanders & Co., St. Albans, who flowered it in the winter months of this year. In its general appearance it resembles V. serrulata or V. roxburghii, but it differs in so many characters from both of them that it must be considered as a new species. The leaves are bright green and thinner than in other vandas. The point of the leaf is not irregularly toothed, but two-lobed, with a little point in the middle rib of the leaf. The flower stalks are the same as in other tall-stemmed vandas. The flowers are narrower and more compressed than usual in other vandas, even the spur is compressed and sharpened on it's upper and lower side, the lip is smaller, the sidelobes not very developed, and the middle lobe fiddle shaped, with three or five elevated lines running downwards from the base to the point of the lip. The colour is a more or less intense golden yellow, with purplish stripes across the leaflets, but by no means tessellated. The full expanded flower is 2.5 inches in height and about 1.5 inches across. The plant is dedicated to Mr. Arbuthnot of Bexley, who was the first to flower the plant.
Vanda arbuthnotiana Kraenzl., Gard. Chron. 1892(1): 522 (1892)
Plants were last found growing in the Malabar Coast of India from where they were discovered. Since then there have been no sightings of a plant of the above description and is therefore considered extinct until it can be rediscovered.