104 VAN DA. 



generally distributed among the orchid collections of Europe and 

 America. The principal station of Vanda Sanderiana is at Davao 

 on the south-east coast of Mindanao^ at places growing on trees 

 that overhang the beach^ and where the long trailing roots of this 

 orchid are often within reach of the salt spray. It flowered for 

 the first time in this country in the summer of 1883 in the 

 collection of Mr. Lee, at Downside, Leatherhead, since dispersed. 



The flowers of Vatida Sanderiana show some striking peculiarities 

 — their large flat sepals and petals give them the aspect of a 

 Miltonia, with which genus, howevei", the affinity is remote ; their 

 partially transverse colouration, combined with other characters, is 

 more significant and indicates affinity with Arachnanthe Cafhcartii. 

 The absence of the spur to the labellum, and the somewhat different 

 attachment of that organ to the column places V. Sanderiana on the 

 verge of the genus, connecting it with Arachnanthe. 



V. teres. 



Stems terete, as thick as an ordinary writing pencil, several feet long, but 



usually much reduced under cultivation. Leaves like the stem, 4 — 5 inches 



long, distichously and alternately arranged at an acute angle to it. 



Peduncles from the upper part of the stem ouly, and from opposite 



the leaves, 7 — 10 inches long, few flowered. Flowers 3 — 4 inches in 



diameter on whitish pedicels that are ribbed and twisted ; sepals and 



petals pale rose-})urple often suffused with white, the sepals spreading 



vertically and the petals horizontally ; dorsal sepal ovate, obtuse ; 



lateral two sub-rhomboidal, obtuse with a hooked apiculus on the 



under side near the apex ; petals sub-orbicular, a little larger than the 



dorsal sepal and undulate at the margin ; lip three-lobed, the side lobes 



roundish, convolute over the column, tawny yellow with bands of red 



spots on the inner side ; the front lobe with a broad claw and broadly 



obcordate blade deeply cleft at the apex, and with the lateral margins 



revolute, pale rose-purple ; spur funnel-shaped, compressed laterally. 



Column white ; anther beaked. 



Vanda teres, Lindl. Gen. et. Sp. Orch. p. 217 (18321 Id. Fol. Orch. Vanda 

 No. 16. Bot. Reg. t. 1809 (1836). Bot. Mag. t. 4114. Paxt. Mag. Bot. V. 

 p. 193, Warner's Sel. Orch. Ill, t. 2. Sander's Eeichenbachia, I. t. 27. Hook. f. Fl. 

 Brit. Ind. VI. p. 49. Dendrobium teres, Roxb. Fl. ind. III. p. 485 (1832). 



SUb-vars. — aurorea (Gard. Chron. XXL (188-1), p. 271), sepals and 

 petals white faintly suffused with light rose-purple, lip light rose, spur 

 pale buff-yellow ; Candida (Williams' Orch. Alb. IX. t. 409), sepals 

 and petals white, side lobes of lip and spur pale yellow, front lobe 

 white with a faint flush of light rose on the disk. 



