25 



Cacti.— Orcutt. 



26 



cm long; fruit 'as large as a small or- 

 ange,' covered with small scales bearing 

 axillary wool and spines. Type, Weber, 

 material in hb Mo tot gard. 'A few miles 

 south of Tehuacan', Puebla, Mexico."— 

 Coulter, Cont Na hb 3:410. 



PILOCE.REUS SCOPARIUS Pos. 



"Aborescens raniosiis 20-23 pedes altus, trun- 

 00 diametro 2-3 pollicari. Ramis juniores non- 

 dum florentes 12-15 costati, costis obtusis cren- 

 ulatis, areolis 8-12 lin. inter se dist.".ntibus nudis 

 subproiuinentibns, aculeis radian tibus 5, cen- 

 trali uno valido pollicari. Ramise lores flores 

 producentes tenuiorea 20-25 e<'Stati, costis hu- 

 milioribus obtusioribns et multo inagis confer- 

 tis, areolis confertissimis, auuleis exterioribus 

 5-7; 10-12 liu. longis setiformibus bruiineis, cen- 

 trali uno. Flores rarisimi parvi subcarapanu 

 latiiubiciindi. Piopela Soiedad.— AGZlS-W, 126. 



. Subgenus ECHINOCEREUS E. "Low 

 • and usiany cespitose pants, nios ly with 

 numerous oval or cylindric htals, short 

 fljwars, green st gmas, and spiny fruit; 

 seeds subglobos^, covered with c ntluent 

 t'lLer.les: en bryo straight, with very 

 shirt cotylcd r.s. 



CEREUS ACIFER Otto. 



Echmocerena acifer 1 em lact 57. 



Echinotereu.i durangensis Pos ex F ed 2, 799. 

 Variety BUEVIiiPINULUS Jac. 

 Variety DU ANGKMsIS Uort. 

 Variety TEN. ISSPINl S Jac. 

 C. adustus E,is pectinatiis var? 

 C BLAXCKII Pos AGZ 1853, 131:— 



"C. 6 viridi uigiicans. 5-0 poll alius diametro 

 sesquipollii ari apite attei uatus, costis 8-10 ver- 

 ticaliter decurren ibus, a;eolis gibbis mamir.se- 

 forniibus lu»ertis, imdis, aculeis exieonbus 8-10 

 8einipollicaribu> fiisci's, summis minimis, cen- 

 tral iuii ■ pollicari. Prope Camargo '' 

 CEREUS BERLANDIERI E. 



Echini.ceveiis berlai.dieii Lem cact56. 



KS nai ISs: .Moii 25(5. 



Stems 11/^-6 inches long, an inch thick, 

 bearing sweet-sented purple flowers 2-4 

 inches in diameter; a native of southern 

 Texas and Mexico. 

 CEREUS BRANDEGEI Cou.ter. 



Caespitose, often 2 feet or more across, 

 co.jsistlng of lew to many cylindr.cal 

 heads mostly 6 or 8 Inches high, l%-2 in 

 diameter, with 8 or 9 interrupted, strong- 

 ly tube. cu ate r.b^. The poung spines 

 frequently tinged with brilliant magenta, 

 the older spines vaiic. ble In color, often 

 of an ivory white with centrals of a deep 

 magenta— making a very hanasome color- 

 effect. "Spines at first variegated, dark 

 and reddish, tecoming more or less ashy- 

 black; radials 10-16, ligld, terete, radiant, 

 mostly uniform, 8-12 mm long; centrals 

 almost a'ways 4, very stout and promi- 

 nent, 3-4 cm long, cruciate, consplcuouslv 

 angled and compressed, sometimes twist- 



ed, the lowest usually the most flattened 

 and sword-like (2-3 mm broad): flowers 

 red, 4-5 cm long, with conspicuous woolly 

 and spine-beaiing arealae over the ovary 

 and lower part of the calyx. Type in hb 

 Brandegee^ El Campo AUemand and San 

 Gregorio, Baja California." — Coulter, 

 Cont U S Nat hb 3:389 (1 Ap 1896). 



This has much the same aspect as Cer- 

 eus Engelmanni, with similar variations 

 in the color of the spines, and bears a 

 similar edible fruit. 

 CEREUS C^ESPITOSUS . 

 CEREUS CHLORANTHUS E. 

 CEREUS CINERASCENS P DC. 

 C. CIRRHIPliKU'5 Lab men 311:— 



"Tige rameuse. tres-prolifere, caespitose: ram- 

 eaux a 5 cotes arrondies, siibtuberculees, con- 

 vexes; sillons aigus; areole^ rondes; 10 aiguil- 

 lons exterleurs tres-ouverts, adinimes, ronds, 

 blancs, transparents, noduleux a la base, 4iute- 

 rieurs ertges,egalement noduleux a la base, de 

 memes couleurs que les autres, chamois a la 

 base; tout contournes irregulier^ment. Ram- 

 eaux de 5-6 et 10 cent, de long sur 3, 3 et demi de 

 diametre; areoles eapacees de 15 mm, nues ou 

 garnies do tomentum court et rare; aiguillons 

 exterie'irs, 4 em de. long; aiguilloBs interieurs, 

 4etdemia5 cm de 1 ng; tous noduloux et 

 chamois a lafcase, blaiics, transparents, contour- 

 nes, qnes-uns eontourne.-! en forme de vrille 

 s'appliquant sur la plant. Fleur tres-belle, 

 grande, rouge cramoisi vif, dit-on. Mexique." 

 CEREUS CTEiNOIHES E. 

 CEREUS DASYACANTHUS E. 



EchiHocerens degandii Rebut cat. 



Echinocereus dasyacanChus Lem ract 57. 



Plant 5-12 inches high, densely covered 

 with numberless delicately colored spines, 

 and hearing large ^howy oranere yellow 

 flowers. El Paso, Texas, and Mexico. 

 Variety NEO MEXICANUS Coul er. 



"Differ- in tb? remote areolae (1.5 cm 

 apar"), fewer spines (11 radials and 4 cen- 

 trals), which are much stouter, 10-12 mm 

 lorg, radiating, scarcely (if at all) pecti- 

 nate, and larger seed (1.5 mm in diameter). 

 Type. Wrght 3f6 in hb Mo hot gard. 

 Southea-^tern New Mexico."— Coulter, 

 Cont Na hb 3:r84. 



CEREUS DUBIUS E. 



Echinocereus duhius Fed 3, 787 KS men 276. 

 CEREUS EHRENBERGI Pfeiffer. 



Suberpct, flactid, green; 6 obtuse repand-tu- 

 berculat-> ribs, areola subremote, with stiort 

 white wool; 8-10 radial spines, 4 longererect 

 centrals, all slender, rigid, light yellow. Real 

 del Monte.Mexico.— Pf AGZ1840, 282. 

 CEREITg ENGELMANNI Parry. 



Engeimann'scushion cactus. Heads sev. 

 eral (sometimes, though rarely, a hundred,) 4 

 to 12 inches high, cylindric or ovate, with 11 

 to 13 ribs bearing bunches of about 13 pale 

 radiating spines, and about 4 darker (yellow. 



