. Carnegie Institution of Washington publication. ECHINOCEREUS. 33 At first simple, stout, a little higher than broad, about 10 em. high, but in cultivation elongated, 20 em. high or more, branching, very deep green, becoming turgid and flabby; ribs 5 to 7, more prominent towards the top of the plant, sometimes strongly tuberculate, at other times only slightly sinuate; areoles minute, white-felted, 5 to 6 mm. apart; spines 1 to 3, weak, 3 to 6 mm. long, yellow; flowers pinkish, to 3 cm. long; perianth-segments spreading, oblanceolate, acute; style cream- colored; fruit not known. Type loc
. Carnegie Institution of Washington publication. ECHINOCEREUS. 33 At first simple, stout, a little higher than broad, about 10 em. high, but in cultivation elongated, 20 em. high or more, branching, very deep green, becoming turgid and flabby; ribs 5 to 7, more prominent towards the top of the plant, sometimes strongly tuberculate, at other times only slightly sinuate; areoles minute, white-felted, 5 to 6 mm. apart; spines 1 to 3, weak, 3 to 6 mm. long, yellow; flowers pinkish, to 3 cm. long; perianth-segments spreading, oblanceolate, acute; style cream- colored; fruit not known. Type locality: Not cited. Distribution: Mexico, but range unknown. The origin of this species is unknown but it is supposed to have come from Mexico. It is not uncommon in European collections and Dr. Rose studied it in Berlin in 1912. At one time we had it in our collection but it has since disappeared; otherwise the plant is known to us only from the descriptions and illustrations. This species is doubtless named for Karl Knippel, a well-known dealer in cacti. Illustrations: Schumann, Gesamtb. Kakteen f. 47; Monatsschr. Kakteenk. 5: 170; Bliihende Kakteen 1: pi. 12; Schelle, Handb. Kakteenk. 120. f. 54; Bait. Cact. Journ. 2: 215, 228. f. 3; Kirtcht, Kakteen Zimmergarten 57. Figure 38 is copied from the third illustration above cited. 43. Echinocereus pulchellus (Martius) Schumann in Engler and Prantl, Pflanzenfam. 36a: 185. 1894. Echinocactus pulchellus Martius, Nov. Act. Nat. Cur. 16: 342. 1828. Cereus pulchellus Pfeiffer, Enum. Cact. 74. 1837. Eckinonyctanthus pulchellus Lemaire, Cact. Gen. Nov. Sp. 85. 1839. Echinopsis pulchella Zuccarini in Forster, Handb. Cact. 363. 1846. Stems obovate-cylindric, 5 to 7 cm. high, simple, glaucous; ribs 12, obtuse, more or less divided into tubercles; spines 3 to 5, short, straight, deciduous, yellowish; flowers rosy-white, about 4 cm. broad; inner perianth-segments lanceolate, Fig. 39.—Echinocereus pulchellus. Fig. 40.—Echinocere
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