NEOMAMMILLARI A . 



119 



spinosissima may have been in cultivation at the time of Forbes's visit to Germany, for 

 it was published in 1838. 



Illustrations: Mollers Deutsche Gart. Zeit. 25: 475. f. 8. No. 26, as Mammillaria posel- 

 geriana; Gartenflora 32: pi. iiii; Diet. Gard. Nicholson 2: 322. f. 5io;F6rster, Handb. 

 Cact. ed. 2. 271. f. 28; Watson, Cact. Cult. 172. f. 68; ed. 3. f. 46, as Mammillaria sanguinea; 

 Mollers Deutsche Gart. Zeit. 25 : 475 . f . 8, No. 1 1 , as Mammillaria eximia ; Mollers Deutsche 

 Gart. Zeit. 25: 475. f. 8, No. 18, as Mammillaria spinosissima auricoma; Bait. Cact. Journ. 

 2: 150, as M. spinosissima brunnea; Mollers Deutsche Gart. Zeit. 25: 487. f. 21: Cact. 

 Journ. 2: 93; Blanc, Cacti 74. No. 1580; Schelle, Handb. Kakteenk. 253. f. 174; Bliihende 

 Kakteen 2: pi. 71, as Mammillaria spinosissima. 



Plate XII, figure 2, shows a plant collected by Dr. Rose at El Parque, Mexico, in 

 1906. Figure 124 is from a photograph of a plant sent to the New York Botanical Gar- 

 den by Frank Weinberg in 1906 as Cactus spinosissimus; figure 125 is from a photograph 

 of a plant sent by William Brockway from the mountains above the City of Mexico. 



Fig. 126. — NeomammiUaria denslspina. 



Fig. 127. — NeomammiUaria nunezii. 



77. NeomammiUaria denslspina (Coulter). 



Cactus densispinus Coulter, Contr. U. S. Nat. Herb. 3: 96. 1894. 

 Mammillaria pseudofuscata Quehl, Monatsschr. Kakteenk. 24: 114. 1914. 



Globose, 6 to 10 cm. in diameter, entirely hidden by the dense covering of spines; tubercles 

 short and thick, green, not milky; radial spines 25 or more, slightly spreading, about i cm. long, 

 whitish or pale yellow; central spines 5 or 6, longer than the radials, 10 to 12 mm. long, the upper 

 half or third dark brown; flowers purple without, yellowish within, 1.5 cm. long; seeds obovate, 

 reddish brown, i mm. in diameter. 



Type locality: San Luis Potosi, Mexico. 



Distribution: San Luis Potosi, Mexico. 



We have had this plant in cultivation since 19 12, specimens having been sent to 

 Washington by Mrs. Irene Vera from San Luis Potosi. Our plant is probably a part of the 

 type collection of Quehl's Mammillaria pseudofuscata, as Mrs. Vera wrote us that she had 

 sent specimens to Germany which had been identified as M. fuscata. Our plant has been 

 compared with Eschanzier's specimen from the same locality which is the type of Coulter's 



