The Cactaceae : descriptions and illustrations of plants of the cactus family . cachacare, adjacent. Here it inhabitsrocky hillsides, attaining a height up to 15 meters; planted individuals observed were con-siderably taller. At St. Joseph large numbers of young plants up to 4 meters tall wereseen growing upon branches of saman trees, evidently germinated from seeds carried bybirds from the fruit of large planted specimens nearby, an interesting illustration of in-duced epiphytic habit of a typically saxicolous plant. Repeated field observations showedthat this Ccrcus is usually 4-ridged when
The Cactaceae : descriptions and illustrations of plants of the cactus family . cachacare, adjacent. Here it inhabitsrocky hillsides, attaining a height up to 15 meters; planted individuals observed were con-siderably taller. At St. Joseph large numbers of young plants up to 4 meters tall wereseen growing upon branches of saman trees, evidently germinated from seeds carried bybirds from the fruit of large planted specimens nearby, an interesting illustration of in-duced epiphytic habit of a typically saxicolous plant. Repeated field observations showedthat this Ccrcus is usually 4-ridged when young, becoming 6-ridged later in life, manyplants bearing some joints 4-ridged, some 6-ridged. Illustration: Loudon, Encycl. PI. 410. f. 6854, as Cactus hexagonus. Cereus chalybaeus. (See page 16, ante.) Cereus beysiegelii (Monatsschr. Kakteenk. 29: 48. 1919) is an abnormal form, similarto Cereus peruvianus monstruosus, which Mr. W. Weingart says looks like Cereus chalybaeuson account of its black spines and turquoise-green skin. Its origin is unknown. IJ • --jjftfrl Ivvl. Fig. 304.—Section of flowering branchof C. grenadensis. Fig. 303.—Cereus grenadensis 23. Cereus grenadensis sp. now (See page 18, ante.) Tall, much branched, up to 7 meters high, the trunk short, sometimes dm. in diameter,the branches grayish green, erect-ascending, about 7 cm. in diameter, 7 to 9-ribbed, the ribs about tcm. high, transversely grooved above each areole; areoles about 1 cm. apart, borne in slight depres-sions of the ribs, gray-pulverulent; spines about 17, subulate, straight, brownish or gray, the largestabout 2 cm. long, the shortest about 3 mm, the central one often twice as long as any of the others;flowers many, borne towards the ends of the branches, about 7 cm. long, short-funnelform, open inthe early morning, the buds rounded; outer perianth-segments with broad purple rounded or apicu-late tips, the few inner ones rounded, purplish; ovary oblong, with a few naked areoles; sta
Size: 1573px × 1589px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
