240 THE ORCHID REVIEW. [AUGUST, 1903. 
punctulata, Oncidium loxense, Odontoglossum cruentum, and a host of 
others, far too numerous to mention. It may be added that earlier in the 
season the number of species in flower was considerably greater. 
Outside we saw some fine clumps of Orchis foliosa and O. latifolia, the 
latter a noble form about three feet high, with wholly green leaves and: 
enormous spikes of flowers. This plant received an Award of Merit from 
the R. H. S. in June, 1895, under the name of O. latifolia Glasnevin 
variety. In a swampy place near the river we also saw a clump of the very 
interesting Epipactis palustris bearing fourteen racemes of flowers. 
It was a great pleasure to go through this fine collection, and to see 
such a large number of rarities, and in such thriving condition. It has. 
been remarked that Orchids soon find out when they are in good hands, andi 
the Glasnevin collection affords confirmation of this. It is full of interest 
from end to end, and thoroughly representative, both of the showy andi 
botanical species, and Mr. Moore must be congratulated on its condition. 
CALADENIA GEMMATA. 
TRUE blue is an extremely rare colour among Orchids, but a few striking 
examples are found among Australian terrestrial species of the tribe Diuridee,. 
and one of them has just flowered in the collection of J. Wilson. Potter,, 
Esq., of Croydon. It is Caladenia gemmata, a native of Western Australia, 
which was described by Lindley in 1839 (Veg. Swan River, p. 52). The 
flowers are of a deep brilliant blue, recalling the colour of Sollya 
Drummondii, and measure 14 inches across; the sepals and petals being. 
lanceolate-oblong in shape, and widely spreading, while the lip is broadly 
ovate, entire, reflexed, about a fourth as long as the other segments, and! 
studded with about nine rows of white tubercles. It is figured in Fitzgerald’s. 
Australian Orchids, vol. ii., pt. 4, the author remarking that it is “‘ generally 
distributed in Western Australia, to which colony it is confined.” It is a 
most beautiful little plant, only a few inches high, and bearing a single ovate: 
leaf just above the surface of the soil. The culture of these Australian 
Orchids is not well understood here, but the treatment recommended is that 
of the Cool house, the compost consisting of a mixture of peat, loam and 
rough sand in equal proportions. The allied C. carnea, however, is said to: 
succeed well in the Cattleya house. Natives of a naturally dry climate, they 
require good drainage and careful watering, with just sufficient moisture 
when dormant to keep the bulbs plump. Members of the allied genera 
Thelymitra and Pterostylis are occasionally seen in cultivation, chiefly 
in Botanic Gardens, and it would be interesting if other species of the 
remarkable Australian tribe Diuridez could be introduced. Many are: 
figured in Fitzgerald’s Australian Orchids. kK. A. 
