CEPHALOCEREUS. 



53 



■phalocereus sartorianus) , and is sometimes 



and herbarium, was obtained, 



In 1908, Dr. Palmer sent 

 mens of a Cephalocereus from 



both 



Chihuahua, 



/- 



may 



marschalleckianus (Zeissold, Cat. 1899) are given by 

 Schumann as synonyms of this species. The latter 

 is mentioned in Nicholson's Dictionary of Gardening 

 (Suppl. 602. 1 901) as having been introduced but very 

 rare in cultivation. 



Illustrations: Diet. Gard. Nicholson 3: f. 153; 

 Gartenwelt 7: 291; Knippel, Kakteenpl. 29; Lemaire, 

 Cact. f. 5, 6; Monatsschr. Kakteenk. 3: 145; 11: 76; 

 21:37; 22: 133; Engler and Prantl, Pflanzenfam. 3^*: 

 f. 59, A, b; Rev. Hort. 1862: f. 38 to 41; Forster, 



Handb. Cact. ed. 2. f. 89, 90; Riimpler, Sukkulenten 

 f. 77; Rev. Hort. Beige 40: after 184, all as Pilocereus 

 houlletii; Cact. Journ. 2:5, as P. houlletianus; Rep. 

 Mo. Bot. Gard. 16: pi. 4, f. 3, 4, as Cereus houlletii. 



Figure 77 is from a photograph by E. Palmer, at 

 Batopilas, Chihuahua, in 1908. 



39. Cephalocereus sartorianus Rose, Contr. U. S. Nat. 



Herb. 12: 419. 1909. 



Plant 3 to 5 meters high or more, with nearly erect 

 branches, these 7 to 10 cm. in diameter, bluish or bluish 

 green; ribs (in the three individuals examined) 7, 2 cm. 

 high, marked by a pair of grooves descending obliquely, 

 one on each side, from each areole; areoles closely set, usu- 

 ally 1.5 cm. apart; radial spines at first 7 or 8, others appar- 

 ently developing later; central normally one; all spines 

 short, I cm. long or less, at first straw-colored, in age gray- 

 ish; all areoles producing few or many cobwebby hairs; 

 flowering areoles appearing on one side of the plant, in the 

 specimen under observation on a single rib, and producing 

 long white hairs 4 to 6 cm. long; flowers 6 to 8 cm. long, 

 "dirty rose-red"; fruit red. 



+ 



Type locality: State of Vera Cruz, Mexico. 

 Distribution: Vera Cruz, Mexico. 



I'lO. 77. — Cephaluccrcus kucoccphulus. 



In the original description, based on material sent by Dr. C. A. Purpus, we stated 

 that the branches were ^4ight or yellowish green, apparently not pruinose.'' The illus- 

 tration in Bluhende Kakteen referred to below, however, shows very blue and probably 



pruinose branches. 



seems 



very 



slender, nearly erect 



masses 



Illustration: 



Kakteen 



palmeri 



909 



Cereus vidoriensis Vaupel, Monatsschr. Kakteenk. 23: 24. 1913- 



Tall, 2 to 6 meters high, with 20 branches or more (often 5 to 8 cm m diameter) dark green or 



when young glaucous and bluish; ribs 7 to 9, rounded on the edge, rather closely set, clothed from 



r^o^ downward for 20 to 30 cm. with long white hairs (4 to 5 cm. long) usually hidmg the brown 



