. Carnegie Institution of Washington publication. 126 THE CACTACKAK. undulate; areoles 2 to 3 cm. apart, small, brown-felted; spines 2 to 6, acicular, brown, swollen at ba-^e, unequal, the longest 2 em. long; flowers and fruit unknown. Collected near Barrinha, Bahia, Brazil, by Rose and Russell, June 8, 1915 (No. 19808). This is a very distinct and remarkable plant. In the shape and color of the branches it suggests some species of Hyloccrcus such as H. ocamponis, but it is a true terrestrial and never develops aerial roots. It is inconspicuous, growing in the bushy flats, and easily overlooke
. Carnegie Institution of Washington publication. 126 THE CACTACKAK. undulate; areoles 2 to 3 cm. apart, small, brown-felted; spines 2 to 6, acicular, brown, swollen at ba-^e, unequal, the longest 2 em. long; flowers and fruit unknown. Collected near Barrinha, Bahia, Brazil, by Rose and Russell, June 8, 1915 (No. 19808). This is a very distinct and remarkable plant. In the shape and color of the branches it suggests some species of Hyloccrcus such as H. ocamponis, but it is a true terrestrial and never develops aerial roots. It is inconspicuous, growing in the bushy flats, and easily overlooked. Numerous cuttings were sent to the New York Botanical Garden by Dr. Rose, but only one of these lived, and this has not yet made any new growth. It may not be of this genus, for it does not resemble closely any of the described species. Figure 187 is from a photograph taken by Paul G. Russell in 1915 at the type locality. FIG. 187.—Acatlthocereus (3) FIG. 186.—Acanthocereus brasiliensis. DESCRIBED SPECIES, PERHAPS OF THIS GENUS. CEREUS TENELLUS Salm-Dyck in Pfeiffer, Enum. Cact. 109. 1837. Suberect, slender, 8 to 12 mm. in diameter; ribs 4 or 5, thin, compressed; areoles 8 to 10 mm. apart; spines setiform, brown, short, 6 to 8 mm. long; flowers and fruit unknown. Type locality: Brazil. 'I his species is not known to us from the incomplete description. Pfeiffer refers here as a synonym C. caiiJclabrins (Enum. Cact. 109. 1837).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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