77 



The West American Scientist. 



7* 



V. Zuniensis from Arizona— a finer form. 

 CEREUS MULTIPLEX Hort. (§Echinopsis). 



Beautiful pink lis. 

 CEHEUS NAPOLEON1S R. Graham. 



Near triangularis— probably a form only? 

 pEREUS NYC llC ALUS Link. 



Yellowish fls., night-blooming, distinguished 

 from granUiflorus by its 4-ang ed stems 

 CEKELS PACIFICUS (Engelmann) Coulter. 



Form of polyacanthus, Ccespitose, crimson Ms. 

 Originally described as a form of phoeniceus. 

 CEREUS Pi CrEN-ABORIGINUM Engelm. 



Erect, ab ut 20 feet high, branching, bearing 

 reddish lis. & curious spiny fruit resembling gi- 

 ant chestnut burs, from which the Indians 

 made corahs— hence its name; 'Hecho • ■ 

 CEREUS PECTINATUS Engelm. 



§Echiuocereus. Fragrant magenta fls. 

 CEREUS PENTALOPHUS De Candolle. 



Related to Berlandieri. 

 CEREUS PERUV1.VNTJS MONSTROSUS Hort. 



Grotesque in the extreme. 

 CEREUS POLYACANTHUS Engelm. 



Hardy, crimson fls., of easy growth. 

 CEREUS PRINGLEI S. Watson. 



The Cardon is the giant cactus of 

 Lower California and Sonora, where it 

 forms forests, attaining a height of 20 

 to 35 feet. The ribs are usually 13, and 

 it differs from the giant cactus of Ari- 

 zona (Cereus giganteus) in that the 

 spine bearing areolae on the ribs o.re 

 connected by wooly grooves. The trunk 

 is often 3 to 4 feet in diameter; the 

 older portions of the branches usually 

 quite thornless. The dead wood is used 

 for fuel, but otherwise this mammoth 

 production of the desert seems to be 

 without use. 



OLD MAN CACTUS. 

 CEREUS SENILIS Salm-Dyck. 

 $Pilocereus. '1 he old man cactus attracts uni- 

 versal attention, receiving it* popular <t veiy 

 a >propriate n*n e fr< m ihe long, flexible, ivory 



CEREUS THURBERI Engelm. 



The Pitahaya Dulce is an abundant 

 species in Sonora and portions of 

 Lower California, also said to occur in 

 southern Arizona. It grows from 5 

 to 20 feet high, many stems 6 to 10 

 inches in diameter from the same base, 

 oearing gieenish or reddish white 

 white flowers followed by large luscious 

 fruit, rather too sweet it is said for 

 northern palates. It was named in 

 honor of George Thurber, a widely re- 

 nowned botanist. 

 CEREUS PROCUMBENS Engelmann. 



Near Berlandieri, spreading prostrate stems 

 with fls. 3 inches across, rose purple. 



CEKEUS PUGIONIFBRUS Lem. 



None in stock, Mexico; form of geometrizans. 

 CEKEUS REGELII Hort 



Form of grandifloru- named in honor of Dr. R. 

 CEREUS RIGIDISSIMUS Engelm. 



Echini cereus candicans of catalogs, famous 

 as the Rainbow cactus, considered by Engel- 

 mann as a form of pectin atns 



CEREUS SIARGENTIANUS Orcutt. 



§Pilocereus. Form of Schottii. 18 inch 



cuttings v\ith beautiful flesh-colored hair. 

 CEREUS SCHOTTII Engelm. 



^Piloeereus Sonora. 



V. australts Rrandeoree, new. 



CEREUS TRIANGULARIS Miller. The 



Strawberry Pear bears most beautiful flowers 



scarcely less handsome than C. grandiflorus, 



measuring 12 to 14 inches across; the bright 



scarlet fruit, the size of a goose's egg, has 

 a flavor compared to strawberries; the plant 

 is easily distinguished by its triangular stems, 

 and makes a most luxuriant growth, climbing 

 readily to the top of its support. 



CEREUS TUBEROSUS. 

 The small tuberous roots produce slender 

 stems 1-4 feet high, covered with a delicate la°e- 

 work of interlacing white spines. Flowers ter- 

 minal, over2inches across, pale rose purple. A 

 liniment can be made by steeping the tubers in 

 alcohol, "said to be a 'sure cure' for rheuma- 



whitespines, giving the plant a most grotesque £ sm \ C-P° 8 elfferianus coulter & probao y C 

 ... .,' . ,, , , . Poselgen Hort. are other names of this plant 



appearance, like the top of an old man's head n™ OW n vadt»bt T tc n ..:«„ 



in muiiature. In Mexico it attains a height of 

 20to"0 ft., 9 or lOinches in diameter, its fluted 

 character giving it somewhat the appearance of 

 an a chitectural column When young the 



stems are su. culent. bnt with >»ge the tissues be- 

 come filled with GOto , HO per c<nt. of oxalate of 

 lime in small eand like grains. 



CEREUS SPECIOSISSIMUS DC. 



Medeo; bear< •« profusion large crimson lis 

 often 8 inches across 

 C.8PLENDENS Hort. 



Our plants under this name are indistin 

 Kuishablo from colubrinus, but have not yet fid. 



•CEREUS STRAMfNEUS Engelm. 



CEREUS VARIABILIS Pfeiffer. 

 Engelmann's variabilis is the plant commonly 

 sold under this name— the ol^er stems triangu- 

 lar, armed wi. h sharp straight spines, & a night 

 bloomer, true name is C. princeps Hort. 

 True Pfeifler's variabilis I have yet to see. 



CEREUS VIREtNS DC. 



Pilocereus Houiletianum & tilophorus, &c. 

 CEREUS VIRIDIFLORUS Engelm. 



§Echinocereus. "Lovely purple & white 

 spines." 



Genua ECHINOCACTUS Link & Otto. 

 E. ACaNTHODES Lem. 



