Cephalocereus palmeri Rose Contr U S Nat Herb 12 418 1909

Cereus victoriensis Vaupel, Monatsschr. Kakteenk. 23: 24. 1913.

Tall, 2 to 6 meters high, with 20 branches or more (often 5 to 8 cm. in diameter), dark green or when young glaucous and bluish; ribs 7 to 9, rounded on the edge, rather closely set, clothed from top downward for 20 to 30 cm. with long white hairs (4 to 5 cm. long) usually hiding the

Fig. 77.—Cephalocereus leucocephalus.

brown spines; radial spines 8 to 12, slender, the central one much longer than the others, 2 to 3 cm. long; areoles 1 cm. apart, scarcely woolly except toward the top; flowers 6 cm. long, somewhat tubular, purplish to brownish, the ovary without spines or hairs; fruit globular, about 6 cm. in diameter, naked but the surface somewhat warty; seeds black, shining, minutely pitted, 2 mm. long, oblique at bases.

Type locality: Near Victoria, Mexico.

Distribution: Eastern Mexico.

The spines of seedlings are yellow. This species flowered in the New York Botanical Garden in June 1918.

E. O. Wooton made a trip into eastern Mexico in 1919 and obtained a photograph of a large Cephalocereus, presumably this species. The plant was common on the coastal plain and extended the known range of this species northwards. Mr. Wooton's locality was on the Chamal Hacienda, about halfway between Matamoras and Tampico.

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