36 i'irA[,.KXoi'Si.s, 



gathered by oiu- collector, David Burke, in the neighbourhood of 

 Davao, on the south-east coast of Mindanao, where it is associated 

 with Vanda Sanderiana and Aerides Lawrencecc ; it has also been 

 detected on the small island of Serangano, growing on the trunks 

 and branches of trees close to the sea-shore. 



Ever since its first flowering in this country Phala-nopsis Sanderiana has 

 been generally regarded as a natural hybrid between P. Aphrodite and 

 P. Schilleriana, and the strucLure of the flower certainly affords strong 

 evidence of such an origin ; it lias tlie general aspect of P. Aphrodite 

 with the colour of P. Schilbrlana, but lighter and more diftused 

 over tlie whole surface ; the trowel-shaped front lobe of the labellum 

 with its apical tendril-like appendages and the side lobes are those of 

 P. Aphrodite, while the crest is more like that of P. Schilleriana. 

 If we accept the theory of its hybrid origin, the proper place f)f 

 P. Sanderiana would be in the group of natural hybrids of whicli 

 P. leucorlioda is the type, and which bears unmistakeable marks of 

 being derived from the same pair of species. Nevertheless there are 

 other circmnstances attending the environment of P. Sanderiana that 

 must not be overlooked, (if which the most prominent are these : — -It 

 has been brought from a locality remote from the habitat of the 

 supposed parents, of Avhose presence in that locality no evidence is 

 fortlicoming ; it has been imported xinmixed in considerable numbers, 

 ami not as in the case of undoubted hybrids as isolated plants, 

 whose appearance among the importations of the assumed parents is 

 couiparatively a rare occurrence. On these grounds, therefore, we recognise 

 P. Sanderiana as a species in the ordinary acceptation of the term ; but 

 whether species or hybrid it is, without question, one of the most 

 beautiful of the section t<i which it belongs — Et'phal.v.xopsis. 



P. Schilleriana. 



Leaves elliptic-oblong, variable in size, and rarely exceeding 3 — 5 in 

 number, the largest 12 — 15 or more inches long, and 4 — 4i inches broad, 

 deep dull green, marbled and Ijlotched with grey, the grey blotching 

 frequently taking the form of irregular transverse parallel bars. Peduncles 

 sometimes attaining a length of 3 or 4 feet, loosely branched, greenish 

 crimson mottled with white, with a small deciduous bract at each node. 

 Flowers 3 — 3-| inches in diameter, but less when the flowers are very 

 numerous ; sepals and petals delicate rose-purple suffused with white, 

 the lateral sepals dotted with purple on the inner basal half, the sepals 

 elliptic-oblong, the petals sub-rhomboid al, twice as broad as the sepals ; 

 lip clawed, three-lobed, the claw long, white spotted with red-purple ; the 

 side lobes rounded, oblong, falcate, incurved, white with a yellow 

 stain spotted Avith red at the base ; the front lobe broadh" unguiculate 

 then cordate, gradually contracted towards the apex, and terminating in 



