OctopeER, 1917-.] THE ORCHID REVIEW 227 
so-called var. Gerseni is exactly intermediate between the other two, and is. 
clearly a natural hybrid between them. Coming to the history of the 
plants, we find that both P. zebrina and P. violacea were collected at 
Moeara Enim, in the Province of Palembang, the former by Gersen and 
the latter by Teijsmann. The var. Gerseni is said to have the habit of P. 
zebrina, but to differ in having the segments striped with violet and spotted 
with the same colour at the apex. The habitat is not mentioned, but it 
was presumably collected by Gersen with P. zebrina. There is also 
described a P. zebrina var. lilacina, said to have been collected by Th. 
Lobb, with transverse lilac lines on the lateral sepals, and the front lobe of 
the lip lilac; characters belonging rather to P. violacea than to P. zebrina, 
hence the suspicion that this may be another form of the same hybrid. P. 
violacea var. alba is also described (/.c., b. 221), and is said to differ from 
the type only in having white flowers tipped with green. And there 
is one other Phalzenopsis, namely, P. bella-(/.c., p. 321), found in woods at 
the foot of Mt. Salak, by Teijsmann, and this evidently: agrees with P. 
Hebe, Rchb. f., the plant now known as Kingiella Hebe, Rolfe (see p. 197). 
One natural hybrid of P. violacea has long been known, namely, P. 
Valentinii, Rchb. f., of which P. cornu-cervi is the other parent—and this,. 
according to Mr. Ridley, also occurs in the Malay Peninsula, where the 
two species grow together. The occurrence of a second one is interesting, 
and it is curious that the status of the plant should have remained 
unsuspected for so many years.—R.A.R. 
Oncip1umM Forsesit.—The Oncidiums of the O. crispum group, whem 
well-grown, are very effective autumn-flowering plants, and O. Forbesii, of 
which we have some fine flowers from the collection of William Bolton, 
Esq., Wilderspool, Warrington, is one of the best. Its handsome flowers 
are of a glossy reddish brown, with a broad irregular yellow margin, and 
on strong plants are produced very freely, in graceful sprays. The species 
isanative of Brazil, and originally flowered in the collection of the Duke of 
Bedford, at Woburn, in 1837, and was named in compliment to Mr. 
Forbes, who had charge of the collection, and was one of the most skilful 
growers of his day. It is figured at t. 3705 of the Botanical Magazine. It 
succeeds well suspended in a light position in the Intermediate house. 
CATTLEYA ARIADNE.—A flower of this pretty hybrid between Cattleya 
labiata and C. dolosa comes from the collection of F. J. Hanbury, Esq., 
Brockhurst, East Grinstead, It is from a seedling raised in the collection, 
and combines well the characters of the two species. The plant is of dwarf 
habit, the flower fairly intermediate in size and shape, and the colour bright 
purple, with a little yellow in the throat. 
