which was the last species of the genus figured in this 
work, now thirty years ago. 
According to Dr. Schumann and Dr. Weber, the variety 
setulosa differs from typical F. dissimilis in having five- 
angled instead of three- to seven-angled stems, and in the 
outer segments of the flower being straw-coloured instead 
of bright purple, but besides these characters, according 
to the figure of Ft. dissimilis in the Gartenflora, vol. xl. 
p. 634, t. 121, the flowers also differ in having more 
numerous and more obtuse perianth segments, and at 
least three times as many stamens as in typical R. dissi- 
milis. It is a native of the province of Sdo Paulo, Brazil, 
and was introduced into the Jardin des Plantes, Paris, in 
1883. 
Descr.— Plant a foot to one and a half high, produc- 
ing two kinds of stems and branches. Stems clustered 
at the base, forked or verticillately branched ; branches 
three to six inches long, three to four lines thick, 
usually five- or occasionally four-angled, or subterete; 
angles obtuse with flat or grooved faces between them ; 
some branches entirely glabrous, others beset at the 
areoles with tufts of thirteen to twenty erect, and some- 
what adpressed, slender, white bristles, one-eighth to one- 
third of an inch long, having at their base a minute, 
transverse, rounded scale or rudimentary leaf, and some 
very minute, woolly hairs, green, not glaucous, with a 
purple-brown spot at each areole. Flowers solitary, three- 
quarters of an inch in diameter; ovary shortly obconic, 
glabrous, immersed at the areoles among woolly hairs in 
cavities of the stem ; outer segments two to three lines long, 
about one line and a half broad, oblong, obtuse, straw- 
yellow, tinged with brownish; inner segments about five 
lines long, and two lines broad, oblong, obtuse, spread- 
ing, pale yellowish-white or tinted with reddish-brown at 
the tips on the back; stamens eighty or more; filaments 
and anthers white; style with three or four linear stigmas, 
white.—N. E. Brown. 
Figs. 1 and 2, areole 
a eels PS lll 
all enlarged, § an tufts of bristles; 3, apex of style with stigmas 
