The Cactaceae : descriptions and illustrations of plants of the cactus family . ; we know only plants in cultivation. Cereus donatii (Schumann, Monatsschr. Kakteenk. 13: 185. 1903), first listed in Haageand Schmidts Catalogue, seems to belong here. Cereus grusonianus Weingart (Monats-schr. Kakteenk. 15: 54. 1905) is apparentlya race of this species, judging from the descrip-tion and from small plants at the New YorkBotanical Garden. Illustrations: Cact. Journ. 2: 135;Curtiss Bot. Mag. 79: pi. 4707; Fl. Serr. 9: , 897; Cassells Diet. Gard. 1: 194;Monats-schr. Kakteenk. 14:57, all as Cereu
The Cactaceae : descriptions and illustrations of plants of the cactus family . ; we know only plants in cultivation. Cereus donatii (Schumann, Monatsschr. Kakteenk. 13: 185. 1903), first listed in Haageand Schmidts Catalogue, seems to belong here. Cereus grusonianus Weingart (Monats-schr. Kakteenk. 15: 54. 1905) is apparentlya race of this species, judging from the descrip-tion and from small plants at the New YorkBotanical Garden. Illustrations: Cact. Journ. 2: 135;Curtiss Bot. Mag. 79: pi. 4707; Fl. Serr. 9: , 897; Cassells Diet. Gard. 1: 194;Monats-schr. Kakteenk. 14:57, all as Cereus macdon-aldiae; Contr. U. S. Nat. Herb. 12: pi. 76. Figure 280 shows a flower of a plant inthe collection of the United States Departmentof Agriculture; figure 279 shows a piece of abranch from a plant in the New York Botan-ical Garden; figure 281 shows a fruiting branch. 11. Selenicereus hamatus (Scheidweiler) Brittonand Rose, Contr. U. S. Nat. Herb. 12: 430. 1909. Cereus hamatus Scheidweiler, Allg. Gartenz. 5: 371. rostratus Lemaire, Cact. Aliq. Nov. 29. 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 yellow.
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
