42 THE ORCHID REVIEW. [MarcH, 1910. 
PHALAZNOPSIS PALLENS. 
THE history of this rare Phalzenopsis was given ten years ago (O.R., viil. p. 
327), when a plant which had been imported from Perak flowered at Kew, 
and proved to be identical. The circumstance afforded a clue to the 
habitat, which, when the plant originally appeared at Chatsworth half a 
century earlier, had been recorded as ‘* Manila.” Another interesting detail 
can now be recorded. The Kew plant has again flowered, side by side with 
P. denticulata, Rchb. f., and a careful comparison shows them to be forms 
of the same species, which is rather curious. When Reichenbach described 
P. denticulata, in 1888, he remarked that the denticulate margin of the lip 
was only known in P. pallens, and it is curious that he did not discover 
their identity. But his P. pallens was simply based on the imperfectly 
known Trichoglottis pallida of Lindley, and the erroneous habitat would 
tend to further obscure the identity of the two plants. In my note on P- 
pallens I suggested that it might be a natural hybrid between P. cornu-cervi 
and P. sumatrana, but the new discovery places the matter in a rather 
different light. After my note appeared I found a drawing by Mr. Day of 
a flower from Mr. Rucker’s collection, and I then wrote a note about both 
plants (O.R., xiii. p. 226), though I did not identify them together. I 
remarked, however, that I should like to know more of their relationship to 
each other and to P. fasciata, Rchb. f. (another doubtful plant), also to the 
well-known species P. sumatrana and P. cornu-cervi, both materials and 
information being very meagre. 
P. pallens is a pretty little plant, much resembling P. violacea in habit, 
and bearing short racemes of cream-yellow flowers, the sepals and petals 
transversely barred with brown, and the denticulate front lobe of the lip 
bearing an acute hairy keel, and the erect side lobes two deep yellow 
blotches in front. The front lobe sometimes bears a pair of purple lines on 
each side of the keel, but these are not —_ in Lindley’s original plant. 
R. A. ROLFE. 
DIvURIS LONGIFOLIA is a very interesting Australian Orchid to which a 
Botanical Certificate was given by the R.H.S. on February 22nd, when 
exhibited from the collection of Sir Jeremiah Colman, Bart. It is one of 
the commonest of a very distinct and attractive genus of Australian Orchids, 
numbering over a dozen species. It has numerous grass-like leaves, and 
erect scapes I to 14 feet high, with a raceme of three to six flowers, over 
an inch across, and yellow in colour, with some reddish brown on the petals 
and lip. The petals are spathulate, with an elongated limb. D. corymbosa, 
Lindl., now considered to be a form of the same, is figured in Hooker’s 
Flora Tasmania (ii. p. 7, t. 105, fig. B). The species is found in South and 
West Australia, Victoria and Tasmania. : R.A: 
