CACTI CULTIVATED UNDER THE NAME ANHALONIUM. 133 
relatively, a straight line. Our figure represents a plant 
with ten of these ribs, the greatest number I have yet 
found for the species. Though this number is not espe- 
cially rare, yet by far the most common number is eight, 
and rarely seven. The figure in the Botanical Magazine 
is a very excellent one in every respect. That in Blanc’s 
catalogue is also good and is the one commonly seen in 
dealers’ catalogues. The only one of the above cited fig- 
ures that is at all questionable is Hennings’ illustration in 
Gartenflora. If it truly is this species it must certainly 
have been taken from a very much depauperated plant. 
Certain it does not represent the typical species of the 
description nor does it in any way compare favorably with 
the two previously published figures. From the promi- 
nence of the tubercles it might: readily be taken for a 
withered specimen of the following species. Our plate 
represents the true species as received from a number of 
different collectors and dealers.— Plate 36. 
LopHorHora Lewinti (Hennings). 
Anhalonium Lewinii, Hennings, Gartenflora 37: 410, jigs. 1-4. 1 Aug. 
1888.— Monats. fiir Kakteenk. 1: 90. Z pl. Oct. 1891. 
Lophophora Williamsii Lewinii, Coulter, Contr. U.S. Nat. Herb. 8: 181. 
10 June, 1894. 
Echinocactus Lewinii, Hennings, Monats. fiir Kakteenk. 5: 94. June, 
1895. 
Though this species is somewhat more variable in the 
arrangement of its tubercles than the last, yet it seems to 
me in every instance to be readily distinguished and sepa- 
rable. The ribs, when distinct, are usually thirteen in 
number, though not uncommonly as few asnine. In these 
more regularly formed plants the groove between the ribs 
is very strongly sinuous. By far the most common form, 
and that shown in our illustration, is the one in which these 
ribs are divided into irregularly outlined tubercles by sec- 
ondary grooves obliquely intersecting two primary grooves 
at the point of constriction in the rib between two super- 
posed areolae. While these limiting grooves give a con- 
