. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEQMAMMILLARIA. 117 16 to 20, white, setaceous; central spines 4, black, subulate, spreading or reflexed, the lowest one longest; flowers from upper part of plant, dark red; perianth-segments oblong, acuminate. Type locality: Mexico. Distribution: Mexico, but range unknown. This species has not been recognized by recent writers, and while we have seen no specimens we believe it deserves specific rank. Schumann refers MammiUaria nigricans definitely to M. rhodantha but, it appears to us, without justification; the

This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.

This image could have imperfections as it’s either historical or reportage.

. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEQMAMMILLARIA. 117 16 to 20, white, setaceous; central spines 4, black, subulate, spreading or reflexed, the lowest one longest; flowers from upper part of plant, dark red; perianth-segments oblong, acuminate. Type locality: Mexico. Distribution: Mexico, but range unknown. This species has not been recognized by recent writers, and while we have seen no specimens we believe it deserves specific rank. Schumann refers MammiUaria nigricans definitely to M. rhodantha but, it appears to us, without justification; the Index Kewensis has referred it, we believe properly, to M. phaeacantha. MammiUaria phaeacantha rigidior (Salm-Dyck, Cact. Hort. Dyck. 1844. 8. 1845) is only a name. Illustration: Pfeiffer, Abbild. Beschr. Cact. 2: pi. 23, as MammiUaria nigricans. Figure 122 is reproduced from the illustration cited above. 75. Neomammillaria graessneriana (Bodeker). MammiUaria graessneriana Bodeker, Monatsschr. Kakteenk. 30: 84. 1920. Solitary, or becoming cespitose, globose, 6 to 8 cm. in diameter, dark bluish green, somewhat depressed at apex; tubercles 4-angled, 8 mm. long, not milky, obtuse or truncate at apex, not setose in their axils; spine-areoles circular, white-woolly when young, nearly naked in age; radial spines 18 to 20, acicular, 6 to 8 mm. long, white; central spines 2 to 4, stouter than the radials, spreading, 8 mm. long, reddish brown; flowers small, somewhat distant from the apex of the plant. Type locality: Mexico. Distribution: Mexico, but range unknown. Illustration: Monatsschr. Kakteenk. 30: 85, as MammiUaria graessneriana. Figure 123 is reproduced from the illustration cited above.. Figs. 124 and 125.—Neomammillaria spinosissima. 76. Neomammillaria spinosissima (Lemaire). MammiUaria spinosissima Lemaire, Cact. Aliq. Nov. 4. 1838. MammiUaria polycentra Berg, AUg. Gartenz. 8: 130. 1840. MammiUaria aiiricoma Dietrich, Allg. Gartenz. 14: 308. 1846. MammiUaria polyacanllia El