io8 



THE CACTACEAE. 



which have passed as M. elegans have recently been described as MammiUaria pseiido- 

 perhella and .1/. perbella. 



MammiUaria supertexta caespitosa Monville (Salm-Dyck, Cact. Hort. Dyck. 1844. 6. 

 1845) is only a name; ill. supertexta compacta Scheidweiler (Labouret, Monogr. Cact. 61. 

 1853) was given as a synonym of M. supertexta tetracantha but may not belong here. 



The name MammiUaria leucocephala Hortus is given by Pfeiffer as a synonym of M. 

 acanthophlegma. M. recta Miquel (Labouret, Monogr. Cact. 63. 1853) occurs only as a 

 synonym for the same species. 



Illustrations: Bliihende Kakteen 3: pi. 139; Cact. Joum. i: pi. for February; Schelle, 

 Handb. Kakteenk. 261. f. 183; Schumann, Gesamtb. Kakteen 564. f. 92, as Mammil- 

 laria elegans; Mem. Mus. Hist. Nat. Paris 17: pi. 3, as MammiUaria geminispina; Cact. 

 Jomn. i: pi. for February in part, as MammiUaria supertexta; Mollers Deutsche Gart. 

 Zeit. 25: 475. f. 8, No. 24, as MammiUaria dyckiana. 



Fig. 108. — NeotnammiUaria tetracantha. 



Fig. 109. — Neomammillaria elega 



Figure 109 is from a photograph of the plant grown in the Huntington Collection near 

 Los Angeles, CaUfomia, as this species. 

 Of this relationship are the following: 



Mammillaria conspicua T- a. Purpus, Monatsschr. Kakteenk. 22: 163. 19 12. 



Simple, cylindric to globose, not milk}^; spine-areoles small, short-elliptic, when young a little 

 woolly, in age glabrate; radial spines 10 to 25, rigid; central spines 2, a little cur^^ed; fruit red; seeds 

 I mm. long. 



Type locality: Near Zapotitlan, Puebla, Mexico. 

 Illustration: Monatsschr. Kakteenk. 24: 37. 



Mammillaria microthele Miihlenpfordt, Allg. Gartenz. 16: 11. 1848. 

 Cactus bispinus Coulter, Contr. U. S. Nat. Herb. 3: loi. 1894. 



Cespitose, many-headed; joints globose, small; tubercles when dr>' 6 mm. long, naked or woolly 

 in their axils; radial spines 22 to 24, white-setiform, spreading, 2 to 4 mm. long; central spines 2, 

 much stouter than the radials, 2 mm. long or less ; flowers flesh-colored without, white within, small, 

 only 3 to 4 mm. long when dried; fruit clavate, 10 mm. long; seeds rather large, probably black. 



Type locality: Not known but supposed to be Mexico. 

 Distribution: Mexico. 



