410 
centrals 3 or 4, stouter but hardly longer: flowers short, lateral toward 
the apex: fruit globular, large (‘size of an orange’’), red and armed 
with numerous reddish-brown spines, bursting into 4 segments when 
ripe.—Type, Gabb 1 in Herb. Mo. Bot. Gard. 
In sandy soil, from Cape San Lucas to San Quintin, Lower California. 
Specimens examined: LOWER CALIFORNIA (Gabb 1 of 1867). 
This may be a form of peeten-aboriginum, but with our present information they are 
sufficiently kept apart, Another “cardon.” 
73 Cereus weberi, sp. nov. 
Plant about 10m. high, with a regular candelabra form of branching 
(two main branches each producing near the base two other branches, 
all ascending), branches and main stem of same diameter, angled and 
glaucous: areolie 38 to 5 em, apart: spines stout, bulbous at base; 
radials 10 or 11, 2 to 5 em. long; central solitary, 6 to 10 em. long, later- 
ally compressed, sometimes a little deflexed: flowers lateral, white, 
8 to 10 em. long: fruit “as large as a small orange,” covered with small 
Scales bearing axillary wool and spines.—Type, Weber material in 
Herb. Mo. Bot. Gard. 
“A few miles south of Tehuacan,” Puebla, Mexico. 
Specimens examined: PUEBLA ( Weber of 1864), 
The specific name originally proposed by Dr. Weber was candelaber, but there is a 
Cereus candelabrius in the European gardens, described at some time before 1840. 
Dr. Engelmann notes this as ‘‘a most peculiar plant.” The seed is sold in market in 
Tehuacan, ete., and is ground and mixed with tortillas. 
74. Cereus queretarensis Weber, MSS. 
Tree-like, much branched, 6 to 8 m. high: flowers 10 to 12 em. long: 
ovary covered with triangular fleshy scales which arise from a tubercle 
and bear axillary wool and spines: fruit densely covered with bunches 
of dark-yellowish or brownish spines bulbous at base.—'Type, Weber 
specimens in Ilerb. Mo. Bot. Gard. 
In the vicinity of Queretaro, Mexico, and cultivated along roadsides 
and fence rows. 
Specimens examined: QUERETARO (Weber of 1864). 
While our information concerning this species is scanty it may be sufficient to 
lead to its recognition in the original locality. 
+ + Branched at base. 
++ Spines similar. 
75. Cereus thurberi Engelm. Amer. Jour, Sci. ser. 2, xvii, 284 (1854). 
Erect or ascending, fasciculate-jointed, 5 to 15 stems from same root, 
becoming 3 to 4.5 m, high, lower joints 6 to 9 dm. long, upper joints 15 
to 18 dm. long and 10 to 15 em, in diameter, branches curved inward: 
ribs 13 or 16, very slightly prominent, with shallow intervals and areole 
25 to 30 mm. apart: spines 7 to 16, slender and rigid or almost setace- 
ous, straight or flexuous, reddish-black at length ashy, very unequal 
(10 to 36 mm. in same bunch), irregularly tascicled; radials 8 to 10 (5 to 
