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By Britton N.L., Rose J.N.

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Smith remarks that the leaves are deciduous in March or April, and that the tree is leafless when in bloom in the spring. Figure 11 is copied from a drawing of an herbarium specimen collected by Herbert H. Smith at Ronda, Santa Marta, Colombia. 11. Pereskia tampicana Weber, Dict. Hort. Bois 939. 1898. Shrub; branches often without spines or the spines several, needle like, black, 2 to 3 cm. long; areoles globular, appearing as knobs along the stem; leaves about 5 cm. 5 cm. long; petals entire, rose-colored.

Nopalea lutea. 4. 3. Nopalea lutea Rose, Contr. U. S. Nat. Herb. 12: 405. 1909. More or less arborescent, 5 meters high or less, with a short, definite trunk and several large, lateral, more or less spreading branches; joints obovate to elliptic or oblong, 10 to 22 cm. long, pale green, slightly glaucous; areoles about 2 cm. apart, large, filled with short brown wool; spines weak, yellow, acicular or bristle-like, the longest 4 cm. long; flowers 5 cm. long; petals red, 2 cm. long; 36 the cactaceae.

5. Areoles dark, filled with numerous brown glochids . . . . . . . . . . . . . . . . 6. Leaves, at least some of them, twice as long as broad or longer. Leaves spatulate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. Leaves elliptic to oblong, or obovate. Leaves pale green, glaucous . . . . . . . . . . . . . . . . . . . . . . . . . 8. Leaves bright green, shining. Glochids few, yellow. . . . . .

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The Cactaceae. Т.1 by Britton N.L., Rose J.N.


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