110 THE ORCHID REVIEW. (APRIL, 1923- 
Towards the Orchidology of Panama he has accomplished more than any 
of his predecessors. Let us hope he may be permitted to continue his 
activities for yet a long time with the same success as heretofore.” 
Among the many new species discovered and now described, we note 
Sobralia Powellii, one of the most beautiful of the genus, the flowers 
resembling those of S. macrantha, but superior in coloration. Sobralia 
Rolfeana is named in honour of the late Mr. Rolfe, who intended paying @ 
visit to Panama for the express purpose of studying the Orchids. At first 
this species was taken for S. leucoxantha, but it has several important 
distinctive points. Mr. Powell considers it one of the finest of all the 
Sobralias. 
As may be expected, there is an extensive series of Mormodes varieties. 
Many forms of M. atropurpurem are described, also of M. Hookeri and 
M. igneum. Another new species is Oncidium Powellii, a magnificent 
example of the genus. It is nearest to anthocrene and O. panduratum, but 
differs from both in the shape of its lip. Sepals and petals brown, trimmed 
with yellow, lip yellow with brown base. Odontoglossum Powellii belongs 
to the sub-genus Rossioglossum, in which are placed the four species O- 
grande, O.Williamsii, O. Schlieperianum and O. Insleayi. 
Regarding Stanhopea Wardii var. amcena, the only representative of 
the genus collected, Mr. Powell gives the following description :—‘‘ Sepals 
and petals lemon-yellow dotted with purple on inside, sepals more thickly 
than petals ; hypochile of lip orange with large maroon spots on each side 
(like eyes), two maroon stains on top at each side of median line in centre; 
mesochile lemon-yellow with dots smaller than on sepals and _ petals; 
column with transparent greenish sides and a fleshy green rib down the 
centre, a very few spots on outer side.” 
When Dr. Schlechter constructed a sub-genus of Odontoglossum 
under the name Osmoglossum (Orchis, 1916, p. 162), the two species placed. 
therein were O. pulchellum and O. Egertoni. Now a third species is added 
in the new Osmoglossum acuminatum. Govenia Powellii is a new 
terrestrial species, bearing two leaves, flowers produced at the apex of stalk, 
which continues to grow. Sepals and petals white, the latter stained with 
rose on the basal half. The dorsal sepai and petals’are close together. Lip 
yellow, with purple dots around the point. 
Other specially striking species are Pleurothallis Powellii, P. Hunteriana, 
Epidendrum Hunterianum, E. porphyrophyllum and Ornithocephalus 
Powellii. 
RoyaL HORTICULTURAL SociETy.—The Chelsea Flower Show will be 
held on May 2gth, 30th, and 31st. The Autumn Show will take place at. 
Holland Park Hall on October 2nd, 3rd, and 4th. 
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