Cephalocereus colombianus

Cereuscolombianus Vaupel,Monats-schr. Kakteenk. 23: 23. 1913.

Plant 5 to 6 meters high, more or less branched throughout, the branches nearly erect; ribs 8, obtuse; spines many, 25 at an areole or more, long and slender; wool of the areoles long and white, produced for 1 meter down from the top of the plant; flowers 7 cm. long, smooth, pale pink.

Type locality: Venticas del Dagua, Colombia.

Distribution: Northwestern Colombia.

Pilocereus alensis Weber in Gosselin, Bull. Mus. Hist. Nat. Paris 11: s08. 190s.

Cereus alensis Vaupel, Monatsschr. Kakteenk. 23: 23. 1913. Fig 80.—Flower°f C tweedyanus. Xa5.

Fig. 82.—Cephalocereus colombianus.

In our original description we referred here specimens from northern Colombia which we now include in Cephalocereus russelianus.

Illustrations: Contr. U. S. Nat. Herb. 12: pl. 62, 63. '

Figure 82 is from a photograph of the plant; figure 83 a shows a piece of the stem; figure 83 b a cross-section of the stem; figure 83 C a flower; and figure 83 d a flower-bud; all are from photographs of the type specimen by Henry Pittier.

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