NEOMAMMILIvARIA . 



83 



19. Neomammillaria seitziana (Martius). 



Mammillaria seitziana Martius in Pfeiffer, Enum. Cact. 18. 

 Mammillaria foveolata Miihlenpfordt, AUg. Gartenz. 14: 372. 

 Cactus foveolatus Kuntze, Rev. Gen. PI. i: 260. 1891. 

 Cactus seitzianus Kuntze, Rev. Gen. PI. i: 261. 1891. 



1837- 



Solitary or somewhat proliferous at base, cylindric, 12 cm. high ; tubercles green, conic, somewhat 

 angled; axils of tubercles woolly; areoles at first white- woolly, becoming glabrate; spines 4,* the 

 upper and lower longer than the lateral; flowers rose-colored, about 25 mm. long; outer perianth- 

 segments olive colored; inner perianth-segments linear, lanceolate, white, nerved with red; stamens 

 white; stigma-lobes 6. 



Type locality: Ixmiquilpan, Mexico. 



Distribution: State of Hidalgo. 



We have not seen this species and hence our description is compiled. 



Fig. 75. — Neomammillaria sartorii. 



Mammillaria senckena and M. senckei are tvi^o names listed as synonyms of this species, 

 but we do not find that they have ever been published. 



Illustration: Pfeiflfer and Otto, Abbild. Beschr. Cact. i : pi. 8, as Mammillaria seitziana. 

 Figure 74 is reproduced from the illustration cited above. 



20. Neomammillaria ortegae sp. nov. 



Simple to short-clavate, 5 to 8 cm. in diameter, light green, lactiferous; tubercles rather short 

 (8 to 10 mm. long), broader at base, obscurely 4-angled, somewhat pointed, very woolly but not 

 setose in their axils ; spines all radial, 3 or 4, more commonly 4 (sometimes with i or 2 small additional 

 spines or bristles, perhaps deciduous), spreading, straw-colored, 6 to 10 mm. long; flowers small; 

 fruit clavate, i cm. long; seeds numerous, small, angled, brown. 



Collected by J. G. Ortega in Sinaloa, Mexico, in 1921 and 1922. 



Figure 76 shows the type specimens as photographed in the U. S. National Museum 

 under the direction of A. J. Olmstead. 



' Schumann says central spines yellow. 



