78 THE ORCHID REVIEW. [Marcu, 1912. 
and doubtless had their origin on this island. Of the 121 species not 
limited to the island, eighty-two species are found in Cuba. But this, it is 
remarked, can scarcely justify the theory of a former land-connection, for 
-the sea lying between these islands has a depth of over 16,000 feet. To the 
west and south the depth of water exceeds 12,000 feet. The island 
‘presents every indication of volcanic formation, the underlying rocks being 
- of igneous origin. The affinities with Cuba and other islands, as well as 
-with Mexico and Central America, may be accounted for without postulating 
.a former land-connection. Doubtless the large number of endemic plants 
may be attributed to the influence of isolation in preserving and elaborating 
‘the results of variation. 
ORCHIDS IN SEASON. 
_A spray of a fine form of Odontoglossum Thompsonianum (Edwardii x 
crispum) is sent from the collection of W. Waters Butler, Esq., Southfield, 
Edgbaston. The flowers are almost uniformly deep brownish purple, with 
the usual yellow crest, while the segments are very undulate and the petals 
- somewhat toothed. 
CaTTLEYA BuTLeRI.—When this striking hybrid between Cattleya 
citrina and C. Schilleriana was described, at page 368 of our last volume, 
we requested to know what the plant was like. Mr. Butler writes: ‘“‘ The 
plant is of erect habit, and the bulbs and leaves very similar to C. citrina, 
but more of the colour of C. Schilleriana.” It would appear that the 
_ pendulous habit of C. citrina is not reproduced in its hybrids. 
A flower of a handsome hybrid Cypripedium, called C. Dr. Milligan, 
is sent from the collection of O. O. Wrigley, Esq., Bridge Hall, Bury, by 
Mr. Rogers, together with flowers of its two parents, C. nitens and C. 
Euryades, Low’s var. It well combines the characters of the two parents, 
but is a decided improvement, having very large and distinct dark brown 
blotches on the dorsal sepal, which has a green ground and a white 
-margin. The petals are brownish green, with many small brown spots at 
the base, and the lip is bright brown in front. Both shape and colour are 
good, and, as it it is only a small plant in a 33 inch pot, it should develop 
into a fine thing when it becomes strong. 
A six-flowered spike of Odontoglossum Electra is sent from the 
. collection of E. F. Clark, Esq., Evershot, Dorset. It was raised from O. 
Andersonianum crossed with the pollen of O. triumphans, the cross being 
made in March, 1903, and is the first seedling Odontoglossum to flower in 
-the collection. It is most like O. triumphans, especially in the lip, but the 
_ sepals and petals are narrower, and well blotched with brown on a deep 
yellow ground. Mr. Clark has one other plant, but a good many of the 
- seedlings died. 
