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MAY 3 1989 

 Sam pi P >i%p3^^{iif^'t,jpy^a«A subscribe. 



The West American Scientist. 



^rary 



Vol. XIL No. II. 



April, igo2. 



Whole No. J 12 



COLLECTED 



OF 



DESCRIPTIONS 

 CACTI. 

 CEREUS PALMERI En^elm. 



"Stems branching, 3 or 4 angled, 12-15 

 dm high; spines :n sreenish-brown bunch- 

 es; fruit grecnis'T-ye'ilow, its areolae bear- 

 ing 5-8 Jtout spines. Type, Pa'mer 70 of 

 1S€9 in hb Mo bot gar3. Sonora."— Coul- 

 ter. Cont Na lb 3:*0L 

 CEREUS TETAZO Weber. 



"Stout, branching. 10-15 m high; flowers 

 greenish-wb'te, 6 cm long, in clusters of 

 10-20 from the yo' ngest areolae and with- 

 ou". any wool: fn-it rregularly dehiscent, 

 expos'ng the ripe pulp. Tyre, Weber spe- 

 ciirens n hb Mo bot gard. Xapatalan. Ja- 

 li--<o."— Coi Iter, Cont Na hb 3:409. 

 ( ERKTS WEBERl Co^^lt€r. 



' P.ant about iO m W^h.. with a regular 

 cande abra form of branch ng (2 ma;n 

 brant taps ea'h producing rear the base 2 

 other branches, all ascend'.ng), branches 

 and mafn stem of same d.amerer. angled 

 an>i gl':iuc:us; areolae c-5 m aparL; spines 

 Moi.t. bulbous at \ ase; rad als 10 or 11, 2-5 

 cm !on»: ce'tral to tary, 6-10 cm 

 long, iaterally compres'^ed. sometimes 

 a li?tl^ df-ficxed; owers ; teral, white, .-li 

 ci;j Jong fkUi as ttrge as a sma.l or- 

 a K^ ' ' o^€ «d with sncall scales bearing 

 »x .'a-v w cl anrJ srines. Type. Weber, 

 m: teria' n ?b Mo lot ;i;r<1. "A few miles 

 to t i. tf Tehudcan', Pu.bli, Mex co." — 

 Cowi;er. C ont Na X.h 3:il0. 

 C er •» s Da^yara th s 

 VETi ty ^EO AfEXlCANUS Coul er. 



"Lifter' in tb.- re.i.o'.e areolae (!.5 cm 

 arf r ). fiwer sp res (11 radia:s and 4 cen- 

 tra s>. which aie much stouter, Vf-XZ mm 

 Iol g, lad.at ng scaice'.y (f at all) pecti- 

 nate. ; nd .arg-fr teed <1.5 q m in dtamel r). 

 Tyi-e, Wrght Se in l.b Mo bot gari. 



Mexico." — Coulter, 



Southeastern New 

 Com Na hb V.tSA. 

 CEREUS PBCTINATU8 

 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 18M in Na hb. Ar- 

 izona, near Fort Huachaca."— CouHer. 

 Cont Na hb 3:386. 

 CEREUS MARGINATUS DC. 



"Stem simple or branching at a4)ex, 

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

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

 ly througii the whole length on account of 

 the ccn uent areolae; spines 7-9, short (4-« 

 mm) and conica'., r gid. grayish (younger 

 ones purpMsh-biack, the central scarcely 

 distinct fr_m the rest); flower brownish 

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

 globular and spiny. Type unknown. 

 From San Luis Potosi southwest through- 

 out M xico. The stem is often covered 

 with a woody crust, and the woolly con- 

 i^uent ar oiae are often double. It is said 

 to be freuently used for hedges in south- 

 ern Mexico."— CouJter, Cont Na hb 3:3£9. 

 CEREUS i^UERETARENSIS Weber. 



'Tree-ike, much branched. 6-8 m high; 

 flowers 10-12 cm long; ovary covered with 

 triangular fltsliy scales which arise from 

 a tub rcle and bear axillary wool and 

 spines; fruit densely covered with bunch- 

 es cf dark-yfUowish or brownish spines 

 butbous at base. Type. Weber spe<^iinen8 

 in hb Mo bo< i;ard. In ;he vicinity of Que- 

 retaro, Mexico, and cultivated along road- 

 sid€s and fervce rows."— Coulter. Cont Na 

 hb 3:110. 

 CEREUS HOLLIANUS Weber. 



"Bra..ci it g from base. 4 3m high and 



