NEOMAMMILLARIA. 147 
1905. It differs considerably from Neomammillaria kunzeana, from the same region, in 
its hair-like radial spines. It is perhaps nearest M. bocasana, but that species has single 
central spines. 
Illustration: Ann. Rep. Smiths. Inst. 1908: pl. 4, f. 4, as Mammillaria bocasana. 
Figure 162 is froma photograph of a plant (type) collected by Dr. E. Palmer near San 
Luis Potosi in 1905 and figure 16 5 shows a cluster of plants from the same colony. 
> 118. Neomammiillaria bocasana (Poselger). 
_> Mammillaria bocasana Poselger, Allg. Gartenz. 21: 94. 1853. 
Cactus bocasanus Coulter, Contr. U. S. Nat. Herb. 3: 104. 1894. 
Cespitose, often forming large mounds; individual plants globose, 3 to 4 cm. in diameter, light 
green; tubercles slender, 6 to 8 mm. long, terete, their axils sometimes hairy or bristly; radial 
spines represented by numerous long white silky hairs; central spines solitary, 5 to 8 mm. long, 
brown, but paler at base, hooked, much shorter than the radial hairy ones; flower-buds_ rose- 
colored; flowers described as white; perianth-segments lanceolate-linear, acute, spreading; fruit 
“green, 4 mm. long; seeds cinnamon brown, oblique, broadly obovate, with narrowly basal hilum.”’ 
Fic. 163.—Neomammiillaria bocasana. 
Fic. 162.—Neomammiillaria longicoma. 
Type locality: Sierra de Bocas,* Mexico. ; 
Distribution: Northern central Mexico, especially in San Luis Potosi. 
This species has not been well understood and is usually misnamed in collections. 
The two varieties of Mamillaria bocasana, cristata and glochidiata, are listed by Schelle 
(Handb. Kakteenk. 250. 1907), but not described. The former is offered for sale by 
Grdassner in his Kakteen for 1914. We donot find that M. bocasana splendens Liebner and 
M. bocasana sericata Lemaire, mentioned by Quehl (Monatsschr. Kakteenk. 19: 46. 1909), 
have ever been described. 
Mammillaria schelhasei lanuginosior Hildmann (Schumann, Gesamtb. Kakteen 531. 
1898) we have not seen but it may belong here. 
Mammillaria bocasana splendens, credited to Schlechtendal, is offered for sale by 
Haage and Schmidt in their 1922 Catalogue. — . . 
Illustrations: Schelle, Handb. Kakteenk. 250. f. 170; Blanc, Cacti oN 748; 
West Amer. Sci. 13: 40 (these three illustrations are from the same source) ii wens 
Kakteen 1: pl. 35; Monatsschr. Kakteenk. 31: 103; Schumann, cesamth Aes teen ; z 
as Mammillaria bocasana; De Laet, Cat. Gén. 28. f. 42; Schelle, Handb. Kakteenk. 251. f. 
*Coulter (Contr. U. S. Nat. Herb. 3: 104) states that Poselger says the plant is from Texas aut oe eit de 
Bocas,” but in the original place of publication he does not give the state. Bocas, how , 
