553 



554 



CEREUS BERLANDIERI E. 



Stems 1^-6 inches long, an inch thick, 

 bearing sweet-scented purple flowers 2-4 

 inches in diameter; a native of southern 

 Texas and Mexico. 

 C. BRANDS GEI Coulter. A 1:381 fdr. 



CEREUS CHIOTILLA Weber. 



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 2% inches in diame- 

 ter with densely woolly ovate or shield- 

 shaped areolae, bearing the terminal 

 flowers and fruit. The tree often of an 

 umbrella shape, or the interlocking 

 branches curving or twisting in any oth- 

 er than a symmetrical manner. Ribs 6-8, 

 acute, with sharp intervals; areolae *4 

 inch across. ^ inch long, nearly or quite 

 eontiguous; 1 "stout, terete, ashy, central 

 spine V4-2 inches long or less often 2 or 3 

 short centrals above *4 inch long, erect; 

 radials about 12, *4 inch long, curved in- 

 ward, all but the lowest laterally dis- 

 posed, spines all nearly white when 

 young. Called 'tiotillo* by the Indians, 

 who gather quantities of the fruit for the 

 markets of Tehuacan in June for 1 cent. 

 Fruit 1U 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 264S, 2686). Flower IV* inches 

 CEREIS CONIFLORUS. 



The following characters distinguish 

 this from Cereus nycticalus: Calyx- 

 tube about 8 inches long, the scales 

 above bright red, large, gradually pass- 

 ing into the sepals. Sepals brightly 

 colored, increasing in size from without. 

 Petals of the outer series narrower than 

 those of the inner, which are about 3*4 

 inches long and 1*4 inches broad. 

 Stamens about 1 inch shorter than the 

 petals. Night-blooming, flowers cone- 

 shaped, inodorous. Hayti. Introduced 

 1904 by W. Weingart (MfK 1904, 118). 



Cereus nycticalus Link & Otto vari- 

 ety armatus Hort. 



C. Emoryi E, Am J sc, sr 2, 14:338. B 

 1.247. Da 7. P 1:203 Cedros. A 1: 



382 d. Ab 258. 



C. ENGELMAITTTI Parry, Am J sc. sr 2, 



14:338. A 1:382 d. B 1:246. P 1:203 



Cedros. 



C. ERTTCA Br. A 1:383 fdr. Z 2:20. 



CEREUS FE1STDLERI E. 



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 maerenta colored. 

 CEREUS FLAGELLIFORMIS Haworth. 

 The well-known whip-cord or Rat's-tail Cac- 

 tus, so useful in hanging baskets or for graft- 

 ing on cofhimnar species; th-e brfgM rose-col- 

 ored flowers are extremely attractive. 

 Variety LEPTOPHIS KS. 

 C. FLAVIFLORUS Coulter. A 1:384 as 

 maritimus. 



CEREUS GEOMETRIZANS Mart. 



Arborescent, 20 feet high or more, as- 

 su ming somewhat an umbrella form 

 from its manner of branching; joints 

 mostly short, thick; ribs 5 or 6, acute 

 when young, with sharply defined inter- 

 vals-y-on old plants often very obtuse, 

 bearing large woolly spineless areolae; 

 stems of young growth 3 inches in diam- 

 eter, areolae 1*6 inches apart, woolly in 

 age the enlarged bulbous bases of the 

 spines are in close contact, covering the 

 areolae completely (|or spineless!); radial 

 spines 3-5, %-l^ inches long, central spine 

 I 1 -!: inches in maximum length, straight 

 or twisted, all stout, angled, ashy black, 

 woody; central spine sometimes absent, 

 lateral radials usually the longer, very 

 variable. Plant smooth, bright apple 

 green or glaucous, known as the garam- 

 bullo. Fruit rarely over % inch long, half 

 as great in diameter, or globose, attached 

 to a small tomentose areolae, remains of 

 flower often persistent, when deciduous 

 leaving a small round scar; epidermis 

 usually smooth, with 1-6 tomentose areo- 

 lae bearing minute scales (more rarely 

 bearing in their axils a more minute 

 spine), purple (sometimes glaucous) with 

 purple pulp; fruit bursting irregularly ajt 

 maturity. As many as 14 fruits were seen 

 growing from one areolae; one rib of 11 

 areolae on a joint of 5 ribs bore 36 fruits, 

 only 1 of the areolae without fruit, and 

 this is frequent on the hundreds of 

 branches old and young alike, almost to 

 the trunk. Seeds large, black, 63 from 

 one berry. Fruit ripening in June, 1902, 

 in the state of Oaxaca, Mexico (Orcutt 

 2U70); in July near San Luis Potosi (i28uJ, 

 where its growth is smaller, and large 

 quantities are collected by the inhabit- 

 ants and eaten fresh, or dried; Tehuacan 

 (2630). 



Console made this the type of his genus 

 Myrtillocactus. Cereus cochal Orcutt, 

 from Lower California, is closely allied, 

 and treated as a variety by some authors. 

 CEREUS GRANDIFLORUS Haworth. 



Miller, Gard Dictionary, ed, n 1L "The 

 night-flowering cereus has gained a fame 

 which entitles it to prominent notice, and 

 plants might well be included in every garden, 

 for Its flowering is a source of interest to the 

 teast observant persons." Castle. 

 C. GHJANTEUS E. A 1:383 d. B 1:247. 

 2:450. 

 CEREUS GREGGII Engelm. 



Gregg's night blooming cactus occurs 

 in the arid regions of Southern Ari- 

 zona, New Mexico, Texas, Chihuahua 

 and Sonora, and is notable for its large 

 tuberous root and slender inconspic- 

 uous stems, 1 to 3 or 4 feet high, a half 

 inch in diameter. Flower 6 inches long, 

 2 inches in diameter, with pale, purple 

 petals, followed by the smooth, oval, 

 acuminate, scarlet fruit, succulent, 

 crowned with the remains of the cor- 

 olla, and suported by a distinct stipe of 

 a bright crimson. 



