2 7 



Cacti.— Orcutt. 



28 



tmywn or black), stout and angular, straight 

 or curved central spines, 1 to 3 inches long. 

 Flowers very numerous, bright magenta, often 

 i inches across, followed by delicious fruits, 

 with much the same flavor of a strawberry, 

 red, pulpy, filled with black seeds. Utah, 

 California, Baja California and Arizona. 

 CEREUS ENNEACAN1HUS E. 



CEREUS PENDLERI E. 



Bot mag t 6533; Weber diet 278. 



Echinocereus fendleri F ed 2, 801. 



A queer irregular caespitose plant of 



Arizona, New Mexico and Sonora, rarely 



more than 12 heads in a cluster, stems 3-4 



inches in diameter and about 6 inches 



high, distinguished by the one usually 



black central spine, which often curves 



upward. Flowers magenta colored. 



CEREUS GLO'MERATUS E, is C. Mari- 

 timus Jones. 



CEREUS KNIPPELIANUS Orcutt. 

 Echinocereus kndppelianus Liebn. 

 Ml'K 5:159, 170; KS u.oii 222 147. 

 E. liebnerianus 'Carp' Bait cact jour 2:262. 



CEREUS LEONENSIS Orcutt. 

 Echinccereus leonens s Maths. 



CEREUS LONGISETUS E. 



Echinocereus longisetus Lem cact 57. 



Is viridiflorus tide Orcutt rev 32. 

 CEREUS MAMILLATUS Hge. 



CEREUS MARGINATUS DC. 



"Stem simple or branching at apex, 

 erect, dark green, 5-7.5 cm in diameter, 

 ribs 5-7, obtuse, with acute intervals, wool- 

 ly through the whole length on account of 

 the con uent areolae; spines 7-9, short (4-6 

 mm) and conical, r.gid, grayish (younger 

 ones purplish-black, the central scarcely 

 distinct from the raet); flower brownish 

 purple, slender-tubular, 3-5 cm long; fruit 

 globular and spiny. Type unknown. 

 From San Luis Potosi southwest through- 

 out Mexico. The stem is often covered 

 with a woody crust, and the woolly con- 

 fluent areolae are often double. It is said 

 to be freuently used for hedges in south- 

 ern Mexico."— Coulter, Cont Na hb 3:399. 

 Cereus gemmatus Zuce ex Pfr Enum 96. 



CEREUS MARITIMUS M. E. Jones. 



"Caespitose, heads 5-230 in a bunch, 

 whicn is often 2-3 feet in diameter and a 

 foot h'gh; each plant cylindrical, oa'e 

 or in small specimens almost round, 1%- 

 4 inches long, three-fourths to V/ z wide; 

 principal sp nes 4, straight, angled and 

 somewhat twisted] at base, 1-1% Irenes 

 long, beneath these are 8-10 very short 

 spines which are either straight or 

 hooked; spines light brown, except when 

 young, then red at base, springing from 

 a very short tut cop'ous wooi; flowers 

 light yellow, about j% inches long and 

 wide; petals oblanceolate or obovate, 

 rounded, margii irregular: ovary obo- 

 vate, sessile or short stalked, covered 

 with bunches of white or yellow, often 

 hooked, short spines and crisped wool; 

 fruit not mature. Encenada, Baja Cali- 



fornia."— Jones, Am naturalist 17:973 

 (S 1^83). 



Cereus glomeratus et flaviflorus E. C. 

 sanborgianus? C. maritimus Coulter, in 

 part. 



CEREUS MOJAVENSIS Engelm. 

 CEREUS PACIFICUS E. 



Cereus phoeniceus var. pacificus En- 

 gelm, MS. 



"Plant cespitose, 1-4 feet in diameter, 

 few to 500 short stems (6-9 inches long and 

 2-2% inches in diameter) in each, forming 

 dense oval cushions; stems with 10-13 ob- 

 tuse ribs, shallow intervals, and an equal 

 number of internal ligneous fibers; radial 

 spines 1-12 and of an average length of 

 one-fourth inch, the 4 central spines lar- 

 ger, three-fourths to 1 inch long, slender, 

 white; flower an inch across, icluding the 

 ovary iy 2 inches long, the oblong spatu- 

 late sepals bright red with a broad pur- 

 plish nyd vein; ovary and fruit with 25-30 

 spiny areolae; fruit fleshy with numerous 

 small seed; stamens slender, as long as 

 sepals; anthers small, red; style three- 

 fourths inch long, stigmata 6-8, greenish. " 

 —Or W 2:46 (Je 18£6). 



Type locality, near Todos Santos bay, 

 Lower California. 

 CEREUS PECTINATUS E. 

 Variety CENTRALIS Coulter. 



"Plant 6-8 cm high; centrals usually 4, 

 the lowest very short (3-4 mm) and cor- 

 rect, the upper 2 or 3 as long as the radi- 

 als (sometimes longer), and recurved up- 

 ward. Type, Wilcox of 1894 in Na hb. Ar- 

 izona, near Fort Huachaca."— Coulter, 

 Cont Na hb 3:386. 



CEREUS POLYACANTHUS Engelm. 



Echinocereus polyacanthusF ed 2, 790 f. 



Cereus leeanus Hooker bot mag 1 4417; Hems 

 543; Weber diet 278. 



Echinocereus leeanus Lem cact 57; F ed2,828« 



Cereus multicostatus Cels cat. 



Cereus pleigonus Lab mon 317. 

 CEREUS POSELGERIANUS A. Lke. 



Fchinocereus poselgerianus A Lke AGZ 1857, 

 239; F ed 2, 77.3; KS nat 185: mon 257 (non pos-ri). 

 CEREUS PROCUMBENS E. 

 CEREUS RIGIDISSIMUS Engelm. 



Cereus pectinatus, var? rigidissimus El 

 Am ac pr 3:279; Mexican boundary R, 31; 

 collected writings 136, 195. 



Echinocereus candicans of catalogs. 



The R-.:nbow Cactus of Southern Ari- 

 zona and Sonora is noted for the beautiful 

 and varied coloring of the all radiating 

 and interlocking, extremely rigid and 

 acute spines, the latest ones of each sea- 

 son being rose-colored, and the earliest 

 ones a pale yellowish, thus forming varie- 

 gated rings around the stems. Flowers 

 2%-3 inches high, 2 or 3 in diameter. 

 CEREUS ROEMERI E. 

 CEREUS ROEITERT E, 

 CEREUS STRAMINEUS Engelm. 



