The Cactaceae : descriptions and illustrations of plants of the cactus family . ythe flowering ones, very large, brown-felted,usually confluent or connected by a groove;spines variable as to length, abundance, andstructure, usually more formidable in youngplants than in old plants, often wanting in veryold plants; spines on young growth 20 or moreat an areole, 1 to 2 cm. long, white but withblack tips, or on young plants sometimes 12cm. long and black throughout; flower-bearingregion of the branches extending from near the topdownward sometimes for 2 meters, the areolesbecoming broad and uniti
The Cactaceae : descriptions and illustrations of plants of the cactus family . ythe flowering ones, very large, brown-felted,usually confluent or connected by a groove;spines variable as to length, abundance, andstructure, usually more formidable in youngplants than in old plants, often wanting in veryold plants; spines on young growth 20 or moreat an areole, 1 to 2 cm. long, white but withblack tips, or on young plants sometimes 12cm. long and black throughout; flower-bearingregion of the branches extending from near the topdownward sometimes for 2 meters, the areolesbecoming broad and uniting, often spineless;flower-buds greenish; flowers 6 to 8 cm. long,the tube and ovary bearing small, acute scales,these nearly hidden by the mass of brown hairsproduced in their axils; inner perianth-segmentswhite, broad, spreading; fruit globular, coveredwith brown felt and bristles, dry; seeds large,edible. Candolle, placedreferring to the P. pringleiI, orcuttii P. pecten-alioriginumP. gaumeriP. grandis P. chrysomallnsP. marginatusP. ruficepsP. lepidanlhusP. columna-trajani. 70 THE CACTACEAE. Type locality: South of the Altar River, Sonora, Mexico. Distribution: Sonora and Lower California. This is a very interesting and important cactus in northwestern Mexico, often thedominant plant in the landscape. On the plain about Guaymas solitary plants, giants ofthe race, are seen, which are doubtless remnants of great forests which once covered thisplain. In Lower California protected valleys and hillsides are now covered with forestsmade up almost entirely of this species. The natives call these plants cardon. Theygather the wood for firewood and use it to make walking-canes, or in building their simplehouses, especially for rafters and beams; the Yaqui Indians, especially, gather the seedsand make a kind of flour by crushing them, and this is made into tomales. It is commonin western Sonora, on many of the islands in the Gulf of California, all along the eastcoast of Lower Californ
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
