«5 



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 bot gard. 'A few miles 

 south of Tehuacan', Puebla, Mexico." — 

 Coulter, Cont Na hb 3:410. 



PILOCEREUS SCOPARIUS Pos. 



"Aborescens ramosus 20-25 pedes altus, trun- 

 co diametro 2-3 pollicari. Ramis juniores non- 

 dum florentes 12-15 costati, costis obtusis cren- 

 ulatis, areolis 8-12 lin. inter se distantibus nudis 

 subprorainentibus, aculeis radian tibus 5, cen- 

 trali uno valido pollicari. Ramise iores flores 

 producentes tenuiores 20-25 costati, costis hu- 

 milioribus obtusioribus et multo magis confer- 

 tis, areolis confertissimis, aculeis exterioribus 

 5-7; 10-12 lin. longis setiformibus brunneis, cen- 

 trali uno. Flores rari>simi parvi subcampanu 

 lati rubicundi. Propela Soledad.— AGZ 1853, 126. 



Subgenus ECHINOCEREUS E. "Low 

 and usuany cespitose p. ants, mostly with 

 numerous oval or cylindric heals, short 

 flowers, green stgmas, and spiny fruit; 

 seeds subglobose, covered with c nfluent 

 tubercles: enbryo straight, with very 

 sh»rt cotyledons. 



CEREUS ACIFER Otto. 

 Echmocereus acit'er i em tact 57. 

 Echinocereus durangensis Pos ex F ed 2, 799. 



Variety BKEVISPINULUS Jac. 

 Variety DU ANGKJSsIS Hort. 

 Variety TENi. ISSPINUS Jac. 

 C. adustus E, is pectinatus var? 

 C BLANCKil Pos AGZ 1853, 134:— 



"C. e viridi nigiicans 5-8 poll altus diametro 

 sesqiii pollicari apice attei.uatus, costis 8-10 ver- 

 ticaliter decurreniibus, aieolis gibbi? mamuiae- 

 lormibus in ertis, nudis, aculeis exteoribus 8-10 

 semipollicaribu-. fuscis, summis miuimis, cen- 

 traliun .pollicari. Prope Camargo.'' 



CEREUS BERLANDIERI E. 



Echin ccreus fcerlatidieii Lem cact56. 



KS nat 185: Jlon 256. 



Stems iy 2 -Q inches long, an inch thick, 



bearing sweet-sented purple flowers 2-4 



inches in diameter; a native of southern 



Texas and Mexico. 



CEREUS BRANDEGrEl Coulter. 



Caespitose, often 2 feet or more across, 

 consisting of iew to many cylindrical 

 heads mostly 6 or 8 inches high, iy 2 -2 in 

 diameter, with 8 or 9 interrupted, strong- 

 ly tubeicu'ate r.b •. The poung spines 

 frequently tinged with brilliant magenta, 

 the older spines variable in color, often 

 of an ivory white with centrals of a deep 

 magenta— making a very handsome color- 

 effect. "Spines at first variegated 1 , dark 

 and reddish, becoming more or less ashy- 

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

 mostly uniform, 8-12 mm long; centrals 

 almost a'ways 4, very stout and promi- 

 nent, 3-4 cm long, cruciate, conspicuously 

 angled and compressed, sometimes twist- 



ed, the lowest usually the most flattened 

 and sword-liko (2i-3 mm broad): flowers 

 red, 4-5 cm long, with conspicuous woolly 

 and spine-bearing arealae over the ovary 

 and lower part of the calyx. Type in hb 

 Brandegee,, El Campo All em and 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 CAESPITOSUS . 

 CEREUS CHLORANTHUS E. 

 CEREUS CINERASCENS P DC. 

 C. CIRRHIFERU* Labmon3ll:— 



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

 eaux a 5 cotes arrondies, subtuberculees, con- 

 vexes; sillons aigus; areoles rondes; 10 aiguil- 

 lons exterieurs tres-ouverts, adprimes, ronds, 

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

 rieurs eriges,egalement noduleux a la base, de 

 memes couleurs que les autres, chamois a la 

 base; tout contournes irreguliertment. Ram- 

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

 diametre; areoles espacees de 15 mm, nues ou 

 garnies de tomentum court et rare; aiguillons 

 exterieurs, 4 cm de long; aiguilloEs interieurs, 

 4 et demi a 5 cm de long; tous noduloux et 

 chamois a la base, blancs, transparents, contour- 

 nes, ques-uns contournes en forme de vrille 

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

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

 CEREUS CTENOIDES E. 

 CEREUS DASYACANTHUS E. 



Echinocerens degandii Rebut cat. 



Echinocereus dasyacanthus Lem cact 57. 



Plant 5-12 inches high, densely covered 

 with numberless delicately colored spines, 

 and bearing large s'howy orange yellow 

 flowers. El Paso, Texas, and Mexico. 

 Variety NEO MEXICANUS Coul er. 



"Differs in the remote areolae (1.5 cm 

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

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

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

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

 Type. Wr'ght 3P6 in hb Mo bot gard. 

 Southeastern New Mexico."— Coulter. 

 Cont Na hb 3:?84. 



CEREUS DUBIUS E.. 



Echinocereus duhius Fed 2, 787 KS mon276. 

 CEREUS EHRENBERGI Pfeiffer. 



Suber^ct, flaccid, green; 6 obtuse repand-tu- 

 berculatf* ribs, areola? subremote, with short 

 white wool; 8-10 radial spines, 4 longer erect 

 centrals, all slender, rigid, light yellow. Real 

 del Monte, Mexico.— Pf AGZ 1840, 282. 



CEREUS ENGELMANNI Parry. 



Engelmann's cushion 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. 



" iTTT 



