STANDLEY TBEES AND SHRUBS OF MEXICO, 1003 



102. Neomaminillaria barbata (Eugelm. ) Britt. & Rose, Cactaceae 4: 144. 

 1923. 



Mammillaria harbata Engelm. in Wisliz. Mem. North. Mex. 105. 1848. 



Chihuahua, the type from Cosihuirachi. 



Often densely cespitose, globose, 3 to 4 cm. in diameter ; radial spines 20 or 

 more, acicular, spreading or ascending, white, sometimes witli brown tips ; 

 central spines several, subulate, brown, puberulent, 1 or 2 hooked; flowers 15 

 mm. long; outer perianth segments ovate to lanceolate, ciliate, the inner erect 

 or spreading at tip, light straw-colored or greenish, brown without, acute. 



103. Neomammillaria mercadensis (Patoni) Britt. & Rose, Cactaceae 4: 



145. 1923. 



MammiUaria mercadensis Patoni, Alianza Cient. Univ. 1: 54. 1910. 



Mammillaria ocamponis Ochoterena, Mex. Estud. Biol. Bol. 2: 355. 1918. 



Durango, the type from Cerro de Mercado. 



Solitary or cespitose, small, globose ; radial spines numerous, sometimes 25, 

 widely spreading, white; central spines 4 or 5, elongate, much longer than the 

 flowers, one of them strongly hooked at apex ; flowers small, pale rose-colored ; 

 perianth segments oblong, obtuse. 



104. Neomammillaria kunzeana (Bodek. & Quehl) Britt. & Rose, Cactaceae 

 4: 145. 1923. 



Mammillaria kxmzeana Bodek. & Quehl, Monatsschr, Kakteenk. 22: 177. 1912. 



Mexico, the range not known. 



Cespitose, globose or sometimes becoming cylindric, light green; tubercles 

 cylindric, setose in their axils ; radial spines about 25, white, setaceous ; 

 central spines 3 or 4, brown, puberulent, one of them hooked ; flowers white or 

 3'ellowish white, rose-colored on the outside, 2 cm. long; inner perianth seg- 

 ments acuminate. 



105. Neom.am.inillaria hirsuta (Bodeker) Britt. & Rose, Cactaceae 4: 146. 

 1923. 



Mammillaria Mrsuta Bodeker, Monatsschr. Kakteenk. 29: 130. 1919. 



Mexico, the range not known. 



Solitary, becoming cespitose, somewhat globose, 6 cm. in diameter ; tubercles 

 10 mm. long, in 8 or 13 spiraled rows, cylindric, their axils setose; spine 

 areoles naked ; radial spines about 20, white, 10 to 15 mm. long ; central 

 spines 3 or 4, the lower one hooked ; flowers 10 mm. long. 



106. Neomammillaria niultihamata (Bodeker) Britt. & Rose, Cactaceae 4: 



146. 1923. 



Mammillaria multihamata Bodeker, Monatsschr. Kakteenk. 25: 76. 1915. 



Mexico, the range not known. 



Short-cylindric, about 5 cm. in diameter ; tubercles cylindric, setose in their 

 axils ; spine areoles white-lanate ; radial spines 25, acicular, white, 8 mm. 

 long; central spines 7 to 9, several of them hooked; flowers numerous from 

 near the top of the plant, 1.5 cm. long ; inner perianth segments narrow, acute, 

 spreading; seeds blackish brown. 



107. Neomam^millaria longicoma Britt. & Rose, Cactaceae 4: 146. 1923. 

 San Luis Potosl. 



Cespitose, often forming broad clumps ; individual specimens 3 to 5 cm. in 

 diameter ; tubercles conic, 4 to 5 mm. long, dark green, obtuse, bearing long 

 white hairs in their axils ; radial spines 25 or more, weak and hairlike, more 

 or less interlocking; central spines 4, 10 to 12 mm. long, brown above, a little 



