176 F, Fedde. 
comes from Yunnan; Gentiana tetraphylla Kusnezow, and G. hexaphyll 
Maximowicz, are allies growing in Szechuan. 
25. X Spiraea pachystachys hort. Sprenger, l. c., p. 322, fig. 125. 
(Sp. corymbosa X Douglasii.) ; 
Mr. Gumbleton obtained his plant from Herr Sprenger, of Naples. 
It is said to be the result of a cross between S. corymbosa and S. Douglasi. 
The flowers are densely crowded in terminal corymbs, and are of a 
pinkish purple colour. It has the great merit of flowering a second time 
in the autumn, both on the young shoots from the base and from side- 
shoots of stems which flowered in early summer. 
26. X Ismene festalis A. Worsley, |. c., p. 322. 
(Elisena [Ismene] longipetala c? X Ismene calathina 9.) 
Leaf-stem 1!/, foot high, from the upper two-thirds of. which issue 
nine leaves, between 2 and 3 feet in length, by from 2 to 2!/, inches or 
more in width. Scape central, solid, sharply two-edged, 4 feet high, 
bearing a sessile (or nearly sessile) umbel of four flowers carried hor- 
izontally, and expanding successively. Flowers pure white, whit a small 
-clearly-defined green bas, 6 inches (or under) across. Almost as strongly 
fragrant as is 1. calathina. Tube curved, 1!/, inch long. Segments curved, 
4 to 4!/, inches long, the inner !/; inch wide, the outer more deeply 
channelled and ?/; inch wide. Cup at first perfect, but becoming longi- 
tudinally oblong, at first 21/, inches in diameter, then 2 by 2!/ inches, 
length 2 inches, toothed as in J. calathina, but the teeth ultimately re- 
flexed. Stamens projecting 1!/, inch (or less) beyond the cup, at first 
‘converging, but ultimately variably disposed, and the three upper suddenly 
refracted downwards and inwards. Anthers !/, inch long. Pollen yellow. 
Style stout, exserted 3 inches beyond the orifice of the cup. Stigma 
obscurely capitate. Ovaries and ovules normal in appearance, but the 
plant is apparently a sterile mule. 
27. Aloe Orpenae S. Schonland, 1. c., p. 385, fig. 144, 145. 
Acaulescent; leaves, rigid, usually slightly incurved, about 20 in a 
dense rosette, up to 30 centimetres in length, 6—8 centimetres broad 
near the base, oblong-lanceolate, slightly convex on the inside, more so 
on the back; glaucous with very marked, interrupted, longitudinal sub- 
parallel lines on the face and back. On the face there are also a small 
number of whitish spots, some of which (especially a few near the apex) 
bear a small spine in the centre. On the back are very numerous 
white spots arranged in irregular bands. Many of these (especially those 
near the apex) have small spines in the centre margin, with strong, 
Straight or curved spines, brown, rising from a white base, about 
3 millimetres long, and separated by nearly straight interspaces 8 to 
10 millimetres long. Inflorescence sub-terminal, about 55 centimetres 
long, laxly branched, branches bearing a number of lanceolate-cuspidate, 
empty bracts, and a dense, terminal, capitate raceme. Floriferous bracts 
ovate-cuspidate about 2 to 3 centimetres long, membranous, whitish with 
