NEOMAMMILLARIA. 127 
Type locality: Mexico. 
Distribution: Deserts of eastern Querétaro, Mexico. 
This plant was collected by Rose and Painter between Higuerillas and San Pablo, 
August 23, 1905 (No. 11536), and flowered in Washington on October 3, 1905. In 1913 
L. Quehl of Halle sent us some flowers of this species. 
Illustrations: Blithende Kakteen 3: pl. 151; Méllers Deutsche Girt. Zeit. 25: 475. . 8, 
No. 6, as Mammillaria camptotricha. 
Figure 135 is from a photograph of the plant collected by Dr. Rose in 1905. 
85. Neomammillaria eriacantha (Link and Otto). 
Mammillaria eriacantha Link and Otto in Pfeiffer, Enum. Cact. 32. 1837. 
Cactus ertacanthus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Solitary or cespitose, ro to 15 cm. high, cylindric, 5 cm. in diameter; tubercles spiraled, in 22 
rows; radial spines about 20, delicate, spreading, pubescent; central spines 2, widely spreading, 
stouter than the radials, also pubescent, yellowish; flowers borne in a ring above the middle of the 
plant, yellow, 14 mm. broad; inner perianth-segments about 14, linear, acute; stigma-lobes 4; 
fruit at first greenish white, afterwards tinged with red, short-clavate. 
Fic. 136.—Neomammillaria schiedeana. 
Fic. 135.—Neomammillaria camptotricha. 
Type locality: Mexico. 
Distribution: Central Mexico. 
A plant, collected by McDowell, was seen in the collection of the Instituto Medico 
Nacional in the City of Mexico, but no specimen was obtained. 
Mammillaria columbiana Salm-Dyck (Cact. Hort. Dyck. 1849. 99. 1850) 1S probably 
to be referred here. It is doubtless of Mexican rather than of Colombian origin. 
Mammnillaria eriantha (Pfeiffer, Enum. Cact. 32. 1837), referred here by Pfeiffer, was 
never described. . ; _ ; 
Mammillaria cylindracea De Candolle (Mém. Mus. Hist. Nat. Paris 17: IIT. 1828) 
is referred here by Schumann and also by Pfeiffer and Otto, but the description of it would 
suggest a different species. Kuntze changes the name to actus cylindraceus new Gen. 
Pl. 1: 260. 1891). Here is also referred Mammillaria cylindrica flavispina (Labouret, 
Monogr. Cact. 88. 1853). 7 ; 
Illustrations: Pfeiffer and Otto, Abbild. Beschr. Cact. 1: 
Kakteenk. 256. f. 178, as Mammillaria ertacantha. 
Figure 138 is a reproduction of the first illustration above cited. 
pl. 25; Schelle, Handb. 
