There are forms which I cannot otherwise distinguish from this having the outer corona-lobes more or less bifid at the apex. I have not seen a specimen of Orbea inodora, Haw., but he only distinguishes it from var. Curtisii by its “smaller stems and retuse-emarginate” outer corona-lobes, both very variable characters. Sir Henry Barkly's specimen (57) which I formerly quoted for this, has the outer corona-lobes much more deeply notched than in the type. [S. Curtisii, Rüst in Monatsschr. Kakt. vi. 38, is not the above plant, but a hybrid, raised in Europe, probably between some form of S. variegata, var. atropurpurea and var. bufonia, with a corolla about 2 in. in diam., very dark purple-brown or violet-brown on the lobes, with a few irregular transverse and marginal yellowish markings and the circular annulus light yellow with rounded purple-brown spots; outer corona-lobes bifid to 1/3 of the way down and tapering at the apex, pale yellow, dotted on the teeth and with a central stripe of purple-brown; outer horn of the inner corona-lobes suberect.