32 



THE CACTACEAE. 



12. Coryphantha erecta Lemaire, Cactees 34. 1868. 



M'ainmillaria erecta Lemaire in Pfeiffer, Allg. Gartenz. S^ 370- 1837. 

 Maiyimillaria ceratocetiira Berg, Allg. Gartenz. 8: 130. 1840. 

 Echiticocactiis ereclus Poselger, Allg. Gartenz. 21: 126. 1853. 

 Cactus erectiis Kuntze, Rev. Gen. PI. i: 260. 1S91. 

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



Plant-bodv cvlindric, yellowish green; axils of young tubercles white-woolly: tubercles obliquely 

 conic, somewhat rhombiform at base; radial spines 8 to 14, subulate, ascending, yellowish; central 

 spines 2, upper one short, lower one curv'ed; flowers large, yellow; perianth-segments ^•er^' narrow. 



Type locality: IMexico. 



Distribution: State of Hidalgo. 



The plant described by Schumann has four central spines and may not belong to this 

 species ; his illustration answers it fairly well but does not show 4 centrals. We have recently 

 examined specimens labeled Mainmillaria erecta which were sent by Carl Ackerman, em- 

 ployed at the Huntington estate near Los Angeles, California; his plants grow in clumps 



Figs. 30 and 31. — Cor\'phantha erecta. 



one meter in diameter ; the larger branches are prostrate below, ascending or erect above, 

 3 dm. long; the spine-areoles are circular, white-felted when young; the spines are glossy 

 yellow, the radials widely spreading; central spines often wanting or sometimes solitary, 

 porrect, and shorter than the radials. 



Mammillaria evarescentis, according to Lemaire (Cact. Aliq. Xov. 4. 1838), was a 

 garden name improperly applied to this species. 



The three names ^lammillaria evanescens, j\I. evarescens, and ^I. evarasccns were listed 

 as synonyms of .1/. erecta by Forster (Handb. Cact. 243. 1846). 



Illustrations: Schumann, Gesamtb. Kakteen 504. f. 82; IMollers Deutsche Gart. Zeit. 

 25: 475- f- 8, No. 7; Lemaire, Icon. Cact. pi. 10, as Mammilaria erecta. 



Figure 30 is from a photograph of a plant collected by Dr. Rose in iMexico in 1906 

 (No. 1072a) and figure 31 is from a photograph of a plant growing in the Huntington col- 

 lection in southern California which was made by Ernest Braunton. 



13. Coryphantha elephantidens Lemaire, Cactees 35. 186S. 



Mammillaria elephantidens Lemaire, Cact. Aliq. Nov. i. 183S. 

 Echinocactus elephantidens Poselger, Allg. Gartenz. 21: 102. 1853. 

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



