The Cactaceae : descriptions and illustrations of plants of the cactus family . d atthe New York Botanical Garden, May 8, 1913. Figure 273 shows a joint and figure 274a fruit of a plant in the collection of the United States Department of Agriculture. 4. Selenicereus hondurensis (Schumann) Britton and Rose, Contr. U. S. Nat. Herb. 12: 430. 1909. Cereus hondurensis Schumann in Weingart, Monatsschr. Kakteenk. 14: 147. 1904. Climbing and clambering, cm. in diameter, green, becoming in winter deep purple; ribs 7to io, low; areoles 6 to 10 mm. apart; spines rather short, 5 to 7 mm. long, but ac
The Cactaceae : descriptions and illustrations of plants of the cactus family . d atthe New York Botanical Garden, May 8, 1913. Figure 273 shows a joint and figure 274a fruit of a plant in the collection of the United States Department of Agriculture. 4. Selenicereus hondurensis (Schumann) Britton and Rose, Contr. U. S. Nat. Herb. 12: 430. 1909. Cereus hondurensis Schumann in Weingart, Monatsschr. Kakteenk. 14: 147. 1904. Climbing and clambering, cm. in diameter, green, becoming in winter deep purple; ribs 7to io, low; areoles 6 to 10 mm. apart; spines rather short, 5 to 7 mm. long, but acicular, usually sur-rounded by numerous much longer white hairs or bristles, especially conspicuous on young branches;flowers 20 cm. long or more; outermost perianth-segments brownish and linear, the outer ones linearand acuminate, yellow; inner perianth-segments pure white, 10 cm. long, 10 to 15 mm. broad; scaleson ovary and flower-tube linear, bearing numerous long bristly hairs in their axils; fruit not known. Type locality: Honduras. Distribution: Honduras and Fig. 275.—Tip of branch of Selenicereus hondurensis. Natural size. 200 THE CACTAC3A3. This species has long passed as Cereus kunthianus and is the plant described by Schu-mann under that name. Figure 275 is from a photograph of a branch of a plant collected by 0. F. Cook atPanzos, Guatemala, in 1907. 5. Selenicereus donkelaarii (Salm-Dyck). Cereus donkelaarii* Salm-Dyck, Allg. Gartenz. 13: 355. 1845. Stems elongated, creeping or ascending, 8 meters long or more, slender, about 1 cm. thick; ribs9 or 10, obtuse, often indistinct; spines in clusters of 10 to 15, the radials 3 to 4 mm. long, setaceous,appressed; central spine 1 or several, 1 to 2 mm. long; flowers 18 cm. long, the slender tube 6 to7 cm. long; outer perianth-segments reddish, linear; inner perianth-segments white, entire, 6 to 8cm. long, about 1 cm. wide, acuminate; stamens and style nearly white above, greenish below; fruitunknown. Type loca
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
