Cacti.— Orcutt. 



red flowers slightly resemble those of C. 

 flagelliformis. 



CEREUS AMBLYOGONUS G. Don. 

 CEREUS AMECAENSIS Heese. 

 CEREl'S ANDALGALENSIS Web. 

 CEREUri AREOLATUS Mueh. 



Andes, South America. 

 CEREiUS ARMATTTS Otto. 

 CEREUS ASSURGENS Gris. 



West Indies. 

 CEREUS AUREUS KS. 

 CEREUS AZUREUS Farm. 

 CEREUS BARBATUS Otto. • 

 CEREUS BAUMAN'NII Lem. 



Paraguay Republic, South America. 

 Variety COLUBRINA KS. 

 Variety FLAVISPINA KS. 

 Variety SMARAGDFLORA Web. 

 CEREUS BAXANIENSIS Karw. 



Mexico. 



CEREUS BENECKII Eh. 



Aborescent and branching after the 

 habit of Cereus geometrizans, 6-7 ribbed; 

 areolae 14, Inch apart, woolly, bearing 8 

 radial spines % inch or less long, and 1 

 Central 1-3 inches long, curved upward, 

 all ash colored; fruit globose, y-i inch in 

 diameter, dull purple; remains of flower 

 usuallv deciduous leaving a large ash- 

 colored ^car; seeds large, ^6-83 in each 

 berry. Tne be-ta-zo-vo of the Indians. 

 In aspect of plant and fruit this closely 

 resembles the garambulio (Cereus geo- 

 meirizars). Near Oaxaca, Mexico (Or- 

 cutt 2703). 

 CEREUS BERTINII L'Her. 



Paraguay Republic, South America. 

 CEREUS BLANKII Pos. 

 CEREUS BOECKMANNII Otto. 



West Indies. 

 CEREUS BONARIENSIS Sw. 

 CEREUS BONPLANDTI Parm. 



Paraguay Republic, South America. 

 CEREUS BRACHIATUS Gal. 



Tehuacan, Puebla, Mexico. 

 Cereus bradtianus C. is Opuntia cerei- 



formis Web fide KS. 

 CEREUS BRANDII H Angl. 

 CEREUS BRIDGBSII S. 



Bolivia, Sbuth America. 

 CEREUS CAESIUS Otto. 

 CEREUS CANDELARIUS Hort. 

 CEREUS CANDIOANS Gill. 



Argentine Republic. 

 CEREUS CAVEINDISHII Monv. 

 CEREUS CHALYBAEUS Otto. 



Argentine Republic. 

 CEREUS CHILENSUS Colla. 



Chile, South America. 

 CEREUS CHIOTILLiA Web. 



Arborescent, 20 feet high, branching 

 freely a foot or so above the ground, the 

 older branches 6 Inches in diameter, the 

 tips of the branches 2i^ inches In diame- 

 ter with densely woolly ovate or shield- 

 shaped areolae, bearing the terminal 



CEREUS DASYACANTHXJS Engelm. 



flowers and fruit. The tree often of an 

 umbrplla shape, or the interlocking 

 branches curving or twist ng in any other 

 than a symmetrical manner. Ribs 6-S, 

 acute, with sharp intervals; aiCDlae % 

 inch across, y-i inch long, nearly or quite 

 contiguous; 1 stout, terete, ashy, central 

 spine ^-2 inches long or less— often 2 or 3 

 short centrals above i^ inch long, erect; 

 radials about 12, 14 inch long, curved in- 

 ward, all but the lowest laterally dis- 

 posed, spines all nearly white when 

 young. Called 'tiotilla' by the Indians, 

 who gather quantities of the fruit for the 

 markets of Tehuacan in June for 1 cent. 

 Fruit 1% inch diameter, slightly longer, 

 remains of the flower persistent; color 

 dull dark red, with 25-30 thin semi-trans- 

 parent triangular scales — the base and 

 sides equal— about three-eighths of an 

 inch; pulp dark purple, with numerous 

 black seeds. State of Oaxaca, Mexico 

 (Orcutt 2648, 2666). Flower IVa inches 

 across, bright lemon yellow (27 Je 1902). 

 CEREUS CLAVIFORMIS R-K. 

 CEREUS COERUL.ESCENS S. 



Argentine Republic. 

 CEREUS COLUBRINUrS Otto. 



An erect-growing Cuban plant, night- 

 blooming, the fragrant white flowers 6 

 inches across. 



CEREUS COLUMNARIS Lodd. 

 CEREUS COMETES Scheidu. 

 CEREUS CONCINNUS Hge. 



