SUPPLEMENT. 
Dyssochroma—continued. 
D. eximia (choice). The correct name of the plant described on 
p. 209, Vol. IL., as Juanulloa eximia. 
D. viridiflora (green-flowered). The correct name of the plant 
described on p. 452, Vol. IIL, as Solandra viridiflora. 
ECHINOCACTUS. To the species described on 
pp. 499-501, Vol. I., the following should now be added: 
E, coptonogonus (wavy-ribbed). /l. 2in. across, Daisy-like, with 
a very short tube; sepals and petals white, with a purple, 
central stripe; stamens red, with yellow anthers. April and 
May. Stem globose, depressed at top; ribs ten to fourteen, 
strong, sharp-edged, wavy, with spine tufts set in little de- 
pressions along the margins; spines five to a tuft, the two upper 
ones lin. long, quadrangular, the two lower ones shorter, 
flattened, the central one longest. Mexico, See Fig. 18. Syn. 
E. interruptus. 
E. cornigerus (horn-bearing). /. small; sepals brownish-red ; 
petals purple, narrow. Stem spherical, greyish-green ; ribs four- 
teen to twenty-one, stout, wavy; spines in tufts about 2in. apart, 
stouter than in any other species, the three horn-like ones 
yellow, the broad, tongue-like one purple, very strong. Mexico 
and Guatemala. Probably not yet cultivated in England. See 
Fig. 19. Syns. E. latispinus, Melocactus latispinus. 
Fie. 20. PORTION OF RIB, WITH FLOWER AND BUNDLE OF 
SPINES, OF ECHINOCACTUS EMEROYI. 
E. Emeroyi (Emeroy’s). //. 3in. long; petals red, with yellowish 
margins, spreading; stamens deep yellow; tube clothed with 
kidney-shaped scales or sepals. Autumn. Stem globose, 1ft. to 
2ft. in diameter; ribs about thirteen, with large, rounded 
tubercles; spines in star-shaped bundles of eight or nine 
at the apices of the tubercles, angled, articulated, lin. to 4in. 
long, with hooked points. Lower Colorado and California. 
See Fig. 20. 
E. equitans (equitant). A synonym of PF. horizonthalonis. 
E. Haselbergii (Haselberg’s). 1. ochreous-yellow and red, lin. 
to ltin. in diameter, sessile, broadly campanulate, with a short, 
red, spiny tube; segments about forty. April. Stem globose or 
oblate, din. in diameter; tubercles small, convex, appearing 
almost vertically disposed in innumerable parallel series, but 
really spirally arranged, convex, crowned with a tuft of white 
hairs ; spines twenty to a tuft, silvery, acicular, tin. long, stel- 
lately spreading. Native country unknown. (B. M. 7009.) 
E, horizontalis (horizontal). A synonym of FE. horizonthalonis. 
E. horizonthalonis (spreading-spined). /. terminal, 4in. 
across, scented, cup-shaped, springing from the young spine 
Echinocactus— continued. 
Fig. 21. ECHINOCACTUS HORIZONTHALONIS. 
tufts ; petals in two rows, deep rose, paler on the inside ; stamens 
with white filaments and yellow anthers. May and June. Stem 
globose, usually flattened at top; ribs or ridges eight or nine, 
large, greyish-green; spines in crowded, star-like clusters along 
the edges of the ribs, strong, slightly curved, horn-like, marked 
with numerous rings. Mexico. See Fig. 21. Syns. E. equitans, 
E. horizontalis. 
E. interruptus (interrupted). A synonym of FZ. coptonogonus. 
E. Joadii (Joad’s). /. bright yellow, handsome, 2in. in 
diameter; calyx tube furnished with tufts of slender spines, 
mixed with curly hairs ; petals numerous, narrow-oblong, acute ; 
stigmas crimson. Stem globose, many-ribbed; spines brownish, 
the outer ones fifteen to eighteen, radiating, the inner ones six 
or seven, longer and stouter, directed outwards. Uruguay (7), 
1885. (B. M. 6867.) 
E. Johnsoni (Johnson’s). ji. purple or pink, 2in, to 2}in. long 
and wide, with numerous reniform sepals on the ovary and tube ; 
petals ovate, obtuse. Stem medium-sized, 4in. to 6in, high, with 
seventeen to twenty-one low, rounded, interrupted, close-set, 
often oblique ribs, densely covered with stoutish, reddish-grey 
spines, the outer ten to fourteen 4in. to l}in. long, the upper 
longest ; the central four stouter, recurved, l4in. long. Southern 
Utah. (R. G. 1883, p. 58.) 
E. latispinus (broad-spined). 
E. polycephalus (many-headed). jl. enveloped at base in a 
dense mass of white wool, which hides the tube; petals bright 
yellow, lin. long, spreading like a saucer; stamens yellow, 
numerous. Spring. Stems numerous in old plants, the largest 
lift to 2hft. high, cylindrical, globose when young; ribs twelve 
to twenty, sharply defined ; spines in clusters lin. apart, reddish, 
broad, flattened on the upper side, annulated, the central ones 
A synonym of FE. cornigerus. 
