204 THE ORCHID REVIEW. (JULY, 1912. 
another house were the bright yellow Ipsea speciosa and the curious 
Megaclinium triste.. 
In the Masdevallia house many interesting species were in bloom, 
including M. Arminii, Wageneri, and the pendulous M. deorsa, the curious 
little M. simula, M. ephippium, and many others, a touch of colour being 
given by plants of M. ignea, Courtauldiana, Henrietta, and the handsome 
M. Shuttryana var. Chamberlainii. Here were also plants of the curious 
Pleurothallis platystachys and the gnat-like P. macroblepharis, Restrepia 
trichoglossa, Scaphosepalum pulvinare, Theodorea gomezoides, with a 
number of other interesting things. 
We have limited our notes to the rarer and more noteworthy of the 
plants seen in bloom at the time of our visit ; without such a limitation they 
might have been enormously extended, for the collection is one of the 
richest in the country, and the number of rare species and varieties it 
contains would form a large Catalogue, while the hybrids, including 
those raised at Burford, are also numerous. But we cannot conclude 
-without mentioning the examples of good culture everywhere apparent, 
and the good condition of the collection generally, which testifies to the 
skill and attention brought to bear on it by Mr. White and his assistants. 
Some of their successes we know to be the result of many experiments, 
as is inevitable in such a varied collection. Lastly, we desire to thank 
Sir Trevor and Lady Lawrence for a very enjoyable afternoon. 
EVOLUTION OF THE ORCHIDACE. 
(Continued from vol. xix. page 292). 
THE great subtribe Sarcanthez forms the culminating point of the Vandee, 
and completes our review of the genera, for Bentham’s one other subtribe, 
Notyliez, is now broken up and the genera referred elsewhere. Sarcanthez 
forms a very natural group, and is thus defined by Bentham. The chief 
character of this subtribe is vegetative. The genera are all epiphytal and 
never pseudobulbous. The stem or caudex, corresponding to the rhizome 
of the preceding subtribes, creeps and bears adventitious roots, at least at 
the base, and often for its whole length. It is usually clothed with scarious 
or closely appressed leaf-sheaths ; the leaves themselves are more or less 
distichous, fleshy, or coriaceous, very rarely thin, never plicate. In some 
cases the end of the caudex or its branches becomes erect or pendulous, 
without roots and with more closely distichous small leaves. In a few 
genera these leafy stems are crowded on a very short creeping rhizome, or 
in a few species the whole stem or rhizome is very short, with a dense tuft of 
roots, and only one or two leaves, or none at all. The peduncles are always 
lateral; either evidently axillary or apparently leaf-opposed, or breaking 
irregularly through the leaf-sheaths. The flowers are generally racemose 
