The Cactaceae : descriptions and illustrations of plants of the cactus family . Selenicereus macdonaldiae. 204 TH3 CACTACEAE. Stem bright green, long and clambering, the branches strongly 4-angled, rarely 3-angled, cm. thick; areoles with spines and black wool, remote, at the upper edges of knobby projections,these often forming obtuse, deflexed spurs about 1 cm. long; spines on juvenile plants bristle-like,white, on old branches fewer, stouter, brown or black; flower 20 to 25 cm. long; upper scales darkgreen, tinged with red; outer perianth-segments pale green, narrow, about 8 cm. lo
The Cactaceae : descriptions and illustrations of plants of the cactus family . Selenicereus macdonaldiae. 204 TH3 CACTACEAE. Stem bright green, long and clambering, the branches strongly 4-angled, rarely 3-angled, cm. thick; areoles with spines and black wool, remote, at the upper edges of knobby projections,these often forming obtuse, deflexed spurs about 1 cm. long; spines on juvenile plants bristle-like,white, on old branches fewer, stouter, brown or black; flower 20 to 25 cm. long; upper scales darkgreen, tinged with red; outer perianth-segments pale green, narrow, about 8 cm. long; innerperianth-segments broad, white; flower-tube 10 cm. long, 22 mm. in diameter, its areoles long-hairy;filaments, style, and stigma-lobes Fig. 282.—Selenicereus hamatus. Type locality: Mexico. Distribution: Southern and eastern Mexico. According to the Index Kewensis Cereus rostratus occurs on the island of Antigua,but Dr. Rose was unable to find it there in 1913. Fig. 283.—Part of branch of S. hamatus. This species is common in cultivation in greenhouses and is occasionally seen in yardsand patios in Mexico. Although we have seen no wild specimens, it seems to be commonalong the eastern coast of Mexico, probably in the wooded regions. BRITTON AND ROSE, VOL. II
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
