86 GRIFFITHS: NEW SPECIES OF OPUNTIA 
long identical with spicules, except in size, but are more fugacious 
even than the spicules; fruit when mature purplish red throughout. 
This species is more closely related. to Opuntia cyanella Griffiths, 
from which it differs very decidedly in laxness, shape, and tint of 
flower, color, shape, and character of joints and nature of spination. 
The flowers are decidedly purplish when they first open at 8 A.M.; 
but purple coloration exists only toward the base of the petals 
on the inside of the flower. They turn more purple as the day 
advances. There are really in each petal when the flower first 
opens, a small marginal area of purplish red and a larger midrib 
area of orange-red tint. In sunlight, they are fully opened by 
ten o'clock, but in the shadow of the joints, the opening is retarded 
by an hour; or sometimes it may not be fully opened before noon, 
if shading is heavy. 
The type is No. 9915 DG, collected at Loma Alta, near Browns- 
ville, Texas, August 18, 1912. The description was drawn in the 
main from cultivated plants grown at Chico, California, July 25, : 
1914. The plants at this place blossomed profusely from cuttings 
the second year. 
” Opuntia zuniensis sp. nov. 
A low, prostrate, reclining species, 30 cm. high and sometimes 
I m. in diameter, the main branches most commonly resting on 
edge, or at times prostrate and the secondary ones erect from them, 
but usually only one or two joints in height; joints ovate obovate, 
pointed above and below, having a little bloom when young but 
losing this and becoming decidedly yellowish-green in age, 11-12 
distally, flattened, slightly twisted, seldom even faintly annular, 
porrect-spreading, usually about six on apex of current years 
growth, the lower one about 2 cm.. long and sloping down, the 
others stouter and varying from 2-5 cm., increasing in both length 
and numbers in age; flowers yellow, about 7 cm. in diameter when “ 
fully opened, having a little red at base of petals when first opened 
