. The Cactaceae : descriptions and illustrations of plants of the cactus family. THE CACTACEAE. about 20 cm.; outer perianth-segments linear, pointed, reddish brown, the inner perianth-segments narrowly lanceolate, 7 cm. long, 12 to 15 mm. broad, acute; filaments numerous, weak, white; style long and slender, exserted beyond the withering perianth; stigma-lobes slender, white, entire; scales on the ovar\- and flower-tube minute, i to mm. long, reddish brown, bearing white felt and white bristles in their axils; fruit crowned by the ^^•ithe^ing perianth, globular, 2 to cm. in diameter,
. The Cactaceae : descriptions and illustrations of plants of the cactus family. THE CACTACEAE. about 20 cm.; outer perianth-segments linear, pointed, reddish brown, the inner perianth-segments narrowly lanceolate, 7 cm. long, 12 to 15 mm. broad, acute; filaments numerous, weak, white; style long and slender, exserted beyond the withering perianth; stigma-lobes slender, white, entire; scales on the ovar\- and flower-tube minute, i to mm. long, reddish brown, bearing white felt and white bristles in their axils; fruit crowned by the ^^•ithe^ing perianth, globular, 2 to cm. in diameter, reddish, bearing numerous, small, circular areoles, these with clusters of acicular spines sometimes i cm. long. Type locality: Southern IMexico. Distribution: Mexico, but range not known. We have had this plant under obser\^ation since 1914 when cuttings were sent us by C. Z. Nelson, an enthusiastic grower of cacti at Galesbm^g, Illinois, who obtained it from southern Mexico from Dr. J. L. Slater. This plant made two flowers during the week of May 17, 1922; the fruit ripens very slowly and did not mature until October 10, 1922. According to Wilhelm "Weingart, the same species has long been grown by Frantz de Laet at Contich, Belgium, also from INIexican material. Illustration: Zeitschrift Sukkulentenk. i: 33, as Cereiis nelsonii. Figure 261 shows a branch bearing a newly matured fruit. '•7'". Fig. 261.—Selenicereus nelsonii. On page 216, vol. 11, under Werckleocereiis tonduzii, add: Illustration: iSIonatsschr. Kakteenk. 31: 85, as Cereus tonduzii. On page 218, vol. 11, under Aporocactus leptophis, add to illustrations: Ann. Fl. Pom. 1839: pi. 43, as Cereus leptophis. On page 219, vol. 11, under Aporocactus flagellijormis, add to illustrations: Tribune Hort. i: pi. 4, as Cereus serpentimts; Fl. Antill. i: pi. 67, as cierge queue de souris; Cact. Joum. i: 82; Rother, Praktischer Leitfaden Kakteen 57; Remark, Kakteenfreund 6; Watson, Cact. Cult. ed. 3. f. 11; Flor
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Keywords: ., bookauthorbrittonnathaniellord1, bookcentury1900, bookdecade1910
