NEOMAMMILLARIA. IIg 
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- 
gertana; Gartenflora 32: pl. 1111; Dict. Gard. Nicholson 2: 322. f. 510; Forster, 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. 11, as Mammillaria eximia; Millers Deutsche 
Gart. Zeit. 25: 475. f. 8, No. 18, as Mammillaria spinosissima auricoma; Balt. 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: pl. 71, as Mammillaria spinosissima. 
Plate xu, 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. 
_—Neomammillaria nunezii. 
Fic. 1 
is) 
“NI 
Fic. 126.—Neomammnillaria densispina. 
77. Neomammillaria densispina (Coulter). 
Cactus densispinus Coulter, Contr. U. S. Nat. Herb. 3: 96. 1894. 
Mammillaria pseudofuscata Quehl, Monatsschr. Kakteenk. 24: 114. I914. 
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 1 cm. long, 
iti i ials, 10 to 12 mm. long, the upper 
whitish or pale yellow; central spines 5 or 6, longer than the radials, 10 . 
half or third dark brown; flowers purple without, yellowish within, 1.5 cm. long; seeds obovate, 
‘reddish brown, 1 mm. in diameter. 
Type locality: San Luis Potosi, Mexico. 
Distribution: San Luis Potosi, Mexico. 
We have had this plant in cultivation since 1912, 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 : S re had 
sent specimens to Germany which had been identified as M . fuscata. ‘ ur p ant Las Deen 
compared with Eschanzier’s specimen from the same locality which is the type of Cou 
