GRIFFITHS: NEW SPECIES OF OPUNTIA | 91 
yellow with light-red centers, filaments yellow, style white, stigma 
light-green, large, coarse, nine- to ten-parted, buds pointed, light 
greenish-red with color equally distributed through entire scale 
but their margins lighter, petals broad, pointed above and below 
and widest slightly above the middle, about 4 X 5.5 cm., ir- 
regularly toothed or even cleft; fruit long, pyriform, burnt carmine 
with a decidedly purple tinge, same color in interior, spicules 
brownish but usually with yellowish tips, unequal, surrounded by 
the end of the gray wool, also having one to three fugacious 
spines in lower part of areole 5-6 mm. long. 
The species is delimited by its large, broad, stipitate joints, 
long pyriform fruits, large flowers with broad-pointed petals. The 
type was collected near Marble Falls, Texas, in July, 1908, under 3 
my collection number 9392 and has been grown to maturity from 
cuttings at Chico, California. 
Opuntia squarrosa sp. nov. 
A bushy, hemispherical shrub 1 m. high and 2 m. in diameter; 
joints subcircular, raised at areoles even the second year and 
pronouncedly so the first, deep blue-green with an abundant 
gray bloom turning more yellowish with age; leaves backward- 
curved and standing almost at right angles to the surface, subulate, 
cuspidate, 6 mm. long, slightly flattened; areoles broadly obovate, 
subcircular in age, dark dull-brown, 6 mm. long, becoming dirty 
gray-black; spicules very prominent, dark brown, spreading, 
scattered through nearly the entire areole, their tips slightly yellow, 
often 8-10 mm. long; spines variable in color, mostly yellowish 
distally and brown at base, mostly one or two, porrect, I-2 cm. 
long, flattened, often twisted; flowers very large _and showy, 
9-10 cm. in diameter, their centers bright purple fading to yellow 
at margins, the backs of the petals orange, filaments tinged a little 
above, apex of style also tinted slightly, stigma light-green, eight- 
parted; buds light green, pointed with thick, heavy, recurved, 
prominent outer segments making the ‘bud appear squarrose; 
fruit purplish red throughout. 
The species is frequently met with in the lower Delta region 
of the Rio Grande in Mexico. It has not been reported from the 
United States but it probably occurs in the region of Brownsville. 
It is easily distinguished from other species of the Delta region 
by its blue-green color, brown spicules and spines, and large, 
striking flowers. The type was collected under my inventory 
number 9981 in April, 1910, about 12 leagues south of Matamoros, 
Mexico. 
