116 THE CACTACEAE. 
Type locality: Mexico. 
Distribution: Mexico, in the states of Hidalgo and San Luis Potosi, according to 
Schumann. 
We know this species definitely only from Lemaire’s plate which is doubtless typical. 
According to Schumann, it has the same range as E. obvallatus, a species which, judging 
from the illustrations, must be very near it, if not actually the same. 
A specimen collected by Rose in San Juan del Rio in 1905 has 5 spines in a cluster, but 
the whole plant is more heavily armed than Lemaire’s illustration would indicate. 
Echinocactus anfractuosus laevior Monville (Labouret, Monogr. Cact. 220. 1853) was 
given as a synonym of E. anfractuosus pentacanthus. 
Illustration: Lemaire, Icon. Cact. pl. 11, as Echinocactus pentacanthus. 
Fic. 122.—Echinofossulocactus obvallatus. Fic. 123.—Echinofossulocactus crispatus. 
15. Echinofossulocactus crispatus (De Candolle) Lawrence in Loudon, Gard. Mag. 17: 317. 1841. 
Echinocactus crispatus De Candolle, Prodr. 3: 461. 1828. 
lat Plant obovoid, somewhat depressed at apex; ribs about 25, more or less folded, somewhat undu- 
ate; spines 10 or 11, rigid, unequal; flowers central, rather small; perianth-segments in 2 series, 
purplish, oblong-linear, acute; flower-tube covered with imbricating scales. 
Type locality: Mexico. 
Distribution: Hidalgo, Mexico, according to Schumann. 
This species was based on Mocifio and Sessé’s illustration which De Candolle reproduced 
and C actus cris patus Mocifio and Sessé (De Candolle, Prodr. 3: 462. 1828) was the first name 
given to it, but it was never formally published. De Candolle, himself , does not compare it 
with EF. obvallatus which is of this series, but with E. cornigerus, belonging to a very different 
series. After De Candolle had described the species he states (Mém. Mus. Hist. Nat. 
Paris 17: 115. 1828) that the ribs vary from 30 to 60; this was doubtless drawn from new 
material, perhaps sent by Thomas Coulter who was then collecting in eastern Mexico. At 
the same place he describes var. horridus, based on Coulter’s plant, and says that the spines 
are stouter, erect, long, and grayish brown. 
