40 I'HAL.ENOPSIS. 



Discovered by Boxall near Surigao, in the extreme north-east of 

 the island of Mindanao in 1881, while collecting Orchids in the 

 Philippine Islands for Messrs. Low and Co., and named in compliment 

 to the former head of that firm, the late Mr. Stuart Low. It was 

 shortly afterwards gathered by our collector, David Burke, in the 

 same locality and around Lake Maynit, in north-east Mindanao, where 

 it is abundant. Like all the other species of Euphal^engpsis, it is 

 always found in close proximity to water, in some places so close to 

 the sea- shore that it can scarcely fail to be washed by the salt 

 spray during the prevalence of storms. 



P. sumatrana. 



Leaves obovate or obovate-oblong, sub-acute, 6 — 10 inches long. 



Peduncles ascending, as long as the leaves, 5 — 9 flowered. Flowers 



about 2 inches in diameter ; sepals and petals similar and sub-equal, 



ovate-oblong, acute, cream-white barred with red-brown, the petals a 



little narroAver and more cuneate than the sepals ; lip shortly clawed, 



tbree-lobed, tbe side lobes ligulate-oblong, erect, truncate, the apex 



prolonged backwards into a kind of tooth, white with some orange 



.spots on tbe inner side ; the front lobe fleshy, oblong in outline with 



a prominent keel above, with two small erect teeth at the base and 



a dense tuft of short, hispid hairs at the apex, white with some purple 



streaks on each si<Ie of tbe keel. Column semi-terete, notched at the 



apex. 



Phalfcnopsis sumatrana, Korth. et Rchb. in Hamb. Gartenz. 1860, p. 115. Rchb. 

 in Gard. Chron. 1865, p. 506, icon. xyl. Bot. Mag. t. 5527. Van Houtte's 2^L c?cs 

 Sc7-res, XVI. t. 1644 (copied from the Bot. Mag.). P. zebrina, Teijsm. et Binn. PI. 

 nov. in hort. Bogor. cult. p. 15 (1863). Flore des Jardins dcs Pays lias, IV. p. 146. 



SUb-vars. — Mr. KuabalCs (Gard. Chron. IV. s. 3 (1888), p. 6), sepals 



and petals broader, bright yellow with red transverse bands, lip light 



yellow; jjaucivUtata {M. XVII. (1882), p. 628), the red-brown bars on 



the sepals and petals fewer and paler, the purple streaks on the lip 



darker; sanguinea (Id. XV. (1881), p. 782), the lateral sepals dark 



red-brown with a few yellow-green markings. 



The original discoverer of Phalcenopsis sumatrana was the Dutch 



naturalist, Dr. Korthals, formerly at the head of the scientific staff 



commissioned to investigate the natural history of the Dutch 



possessions in the Malay Archipelago, who met with it in southern 



Sumatra some time prior to 1839. His sketch of it preserved at 



Leyden was all that was known of it till it was re-discovered by 



Teijsman in 1859 along with P. violacea, in the Sumatrian province 



of Palembang, and was sent by him to the Botanic garden attached 



