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The West American Scientist. 



Vol. XII. No. If. 



April, igo2. 



Whole No. 112 



COLLECTED 



OF 



DESCRIPTIONS 

 CACTI. 

 CFREUS PALMER! t ngelm. 



"£'trms 1: ranching-, 3 or 4 angl'd, 12-15 

 dm Mgh; spines :n sTe«nish-brown bunch- 

 es; f 1 uit grei n:s' -ye low, Us areolae bear- 

 ing- l-% ftout spines. Ty.e, Pa'mer 70 of 

 1S69 in hb Mo bot gar'. Sonora."— Coul- 

 t.r, Cont Na hb 3: '01. 

 CEREUS TETAZO Weber. 



"Stout, branching, 10-15 m hig-h; flowers 

 g-rreni=:h-wh'te, 6 cm long, in clusters of 

 10-20 from the youngest areoiae and with- 

 ou't any v ool; fruit .rregul-^.rly dehiscent, 

 exposng the ripe pu'.p. Tyre, Weber spe- 

 cimens n hb Mo bot gard. Zapata'.an, Ja- 

 li -^o."— Corlter, Cont Na hb 3:409. 

 CEREUS V.EBERl Coulter. 



' Piant abo-Jt 10 m Hgh, with a regular 

 candeabra form of branchng (2 main 

 blanches each producing rear the base 2 

 other blanches, all ascending), branches 

 and main stem of same diameter, angled 

 and glaucous; areolae E-5 rm apart; spines 

 stout, bulbous at base; rad'als 10 or 11, 2-5 

 cm long; central solitary, 6-10 cm 

 long, laterally compressed, sometimes 

 a littl; deflexed; ' owers lateral, white, l-X) 

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

 arge' coveied with small scales bearing 

 axi'.lary wool and spines. Type, Weber, 

 materia; in hb Mo bot gard. 'A few miles 

 south cf Tehuacan', Puebla, Mexico."— 

 Coulter, Cont Na hb 3;410. 

 Cereus Da=yaca'-thus 

 Variety N-EO MEXICANUS Coul'er. 



"Differs in the remote areolae (1.5 cm 

 apart), 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 366 in hb Mo bot gard. 



Southeastern New Mexico."— Coulter, 

 Cont Na hb 3;;84. 

 CEREUS PECTINATUS 

 Variety CENTRALIS Coulter. 



"Plant C-S cm high; centrals usually 4, 

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

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

 als (scmetimes longer)', and recurved up- 

 ward. Type, Wilcox of 1S94 in Na hb. Ar- 

 izona, near Fort Huachaca." — Coulter, 

 Cont Na hb 3:386. 

 CEREUS MARGINATUS DC. 



"Stem simple or branching at apex, 

 erect, dark green, 5-7.5 cm in diame'Ler, 

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

 ly through the whole length on account of 

 the ccn uent areoiae; spines 7-9, short (4-6 

 mm) and conical, r gid, grayish (younger 

 ones purplish-biack, the central scarcely 

 distinct fr^m the rest); flower brownish 

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

 globular and spiny. Type unknown. 

 Prom San Luis Potosi southwest through- 

 out M;xioo. 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 QUERETARENSIS Weber. 



"Tree-like, much branched, 6-8 m high; 

 flowers 10-12 cm long; ovary covered with 

 triangular fleshy scales which arise from 

 a tubercle and bear axillary wool and 

 spines; fruit densely covered with bunch- 

 es of dark-yellowish or brownish spines 

 bulbous at base. Type, Weber specimens 

 in hb Mo bot gard. In the vicinity of Que- 

 retaro, Mexico, and cultivated along road- 

 sides and fence rows." — Coulter, Cont Na 

 hb 3:410. 

 CEREUS HOLLIANUS Weber. 



"Branching from base, 4-5 m high and 



