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The Cactaceae : descriptions and illustrations of plants of the cactus family . us weingartianus. Figure 112 shows part of a branch of a plant collected by Dr. Rose at Azua, SantoDomingo, in 1913. 2. Leptocereus leonii Britton and Rose, Torreya 12: 15. 1912. Cereus leonii Vaupel, Monatsschr. Kakteenk. 22: 66. 1912. Plant up to 5 meters high, repeatedly branching, the rounded trunk 3 cm. in diameter at thebase, the cortex scaly-roughened; ultimate branches about cm. in diameter, slender, elongated,6 to 8-ribbed; old areoles 1 to cm. apart in vertical rows, bearing acicular spines; ribs
The Cactaceae : descriptions and illustrations of plants of the cactus family . us weingartianus. Figure 112 shows part of a branch of a plant collected by Dr. Rose at Azua, SantoDomingo, in 1913. 2. Leptocereus leonii Britton and Rose, Torreya 12: 15. 1912. Cereus leonii Vaupel, Monatsschr. Kakteenk. 22: 66. 1912. Plant up to 5 meters high, repeatedly branching, the rounded trunk 3 cm. in diameter at thebase, the cortex scaly-roughened; ultimate branches about cm. in diameter, slender, elongated,6 to 8-ribbed; old areoles 1 to cm. apart in vertical rows, bearing acicular spines; ribs crenate,with the areoles borne at the depressions; spines 6 to 12 at an areole, long, yellowish when young,gray when old, 2 to 9 cm. long; flower cm. long, campanulate; inner perianth-segments pink,about 15, withering-persistent; tube of flower bearing scattered areoles each with 1 to 4 short spinesor some of them spineless; fruit globose-ovoid, 2 cm. in diameter, with a few scattered spine-bearingareoles; seeds black. Type locality: Sierra de Anafe, near Guayabal, Kig. 113.—Leptocereus leonii. LEPTOCEREUS. 79 Distribution: On limestone rocks, Sierra de Anafe and Sierra de Guane, west-ern Cuba. The wood is very hard; the flowers appear from August to November. At the type locality this tree-like species inhabits a steep rocky slope and cliff, diffi-cult of access, growing as a colony. Figure 113 is from a photograph of the type plant, obtained by Brother Leon, of theColegio de la Salle, Habana, in whose honor the species was named. 3. Leptocereus prostratus sp. nov. Plant prostrate, bright green, 7-ribbed, 2 cm. thick, the ribs scarcely crenate; are-oles elevated, about 1 cm. apart; spines 15 to20 at an areole, acicular, 1 to 2 em. long, yel-low when young, gray when old; ovary denselycovered with yellow spines; perianth cm. long; fruit about cm. in diameter. On high, dry, exposed rocks, La Guira,north of Sumidero, Pinar del Rio, Cuba(Shafer, No.
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919