The Cactaceae : descriptions and illustrations of plants of the cactus family . r; ovary bearing clusters of acicularspines; fruit globular, slightly tuberculate, 8 cm. in diameter, green, covered with clusters of aciculardeciduous spines; pulp greenish white; seeds few, large, brownish. Common in thickets in the subarid parts of Bahia, Brazil, where it was frequentlyobserved by Dr. Rose in 1915; the type is from Machado Portella (No. 19903). This species not only is out of the range of the preceding species of this genus, but isotherwise somewhat anomalous, for it normally has more ribs and t
The Cactaceae : descriptions and illustrations of plants of the cactus family . r; ovary bearing clusters of acicularspines; fruit globular, slightly tuberculate, 8 cm. in diameter, green, covered with clusters of aciculardeciduous spines; pulp greenish white; seeds few, large, brownish. Common in thickets in the subarid parts of Bahia, Brazil, where it was frequentlyobserved by Dr. Rose in 1915; the type is from Machado Portella (No. 19903). This species not only is out of the range of the preceding species of this genus, but isotherwise somewhat anomalous, for it normally has more ribs and these of different fruit, too, is much larger than that of the other species, is covered with deciduousspines, and has a greenish white pulp. Figure 186 is from a photograph taken by Paul G. Russell at the type locality in 1915. 7. Acanthocereus (?) albicaulis sp. nov. A low, weak plant, although erect at first, a meter high or less, afterward elongating and arch-ing; branches few, usually sharply 4-angled, 1 to 3 cm. broad, bluish white, the margins only slightlv. Fig. 185.—Joint of Acanthoce-reus occidentalis. 126 THE CACTACEAE. undulate; areoles 2 to 3 cm. apart, small, brown-felted; spines 2 to 6, acicular, brown, swollen atbase, unequal, the longest 2 cm. 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 branchesit suggests some species of Hylocereus such as H. ocamponis, but it is a true terrestrial andnever develops aerial roots. It is inconspicuous, growing in the bushy flats, and easilyoverlooked. Numerous cuttings were sent to the New York Botanical Garden by , but only one of these lived, and this has not yet made any new growth. It may notbe 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 loc
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
