in De Candolle’s Prodromus, published in 1844, since which 
time many more have been discovered, but few figured. In 
1811, forty-four species were cultivated at Kew, where there 
are now about thirty. 
St. sororia varies much in robustness, size of flower, and in 
the number and extent of yellow ridges on the petals. 
Descr. Pale green, glabrous. Sfems six to ten inches high, 
with erect or horizontal branches one-third to two-thirds of an 
inch in diameter, rather depressed or channelled between the 
angles, which are toothed at intervals of about one-third to 
two-thirds of an inch, the teeth are soft and incurved. 
Peduncles solitary or twin, from the young shoots at the 
bases of the branches, decurved, with ascending tips, three to 
four inches long. Flower three to four and a half inches in 
diameter. Calyz-lobes triangular-ovate, acuminate. Corolla 
clothed on the surface and margins with long hairs, which 
are very dense towards the throat; lobes five, ovate, acumi- 
nate, transversely rugose, dark vinous purple, the folds towards 
the base bright orange-yellow. Processes of the column deep 
purple, exserted.—J. D. H. : 
Fig. 1, column :—magnified. 
