32 THE CACTACEAE. 
>12. Coryphantha erecta Lemaire, Cactées 34. 1868. 
Mammnillaria erecta Lemaire in Pfeiffer, Allg. Gartenz. 5: 370. 1837. 
“" Mammillaria ceratocentra Berg, Allg. Gartenz. 8: 130. 1840. 
Echincocactus erectus Poselger, Allg. Gartenz. 21: 126. 1853. 
Cactus erectus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus ceratocentrus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Plant-body cylindric, 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 curved; flowers large, yellow; perianth-segments very narrow. 
Type locality: Mexico. 
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 4centrals. We have recently 
examined specimens labeled Mammillaria erecta which were sent by Carl Ackerman, em- 
ployed at the Huntington estate near Los Angeles, California; his plants grow in clumps 
F p am ‘i bo ra 
Mee 
\ \ 
— 
xX 
‘ 
‘ | 
Fics. 30 and 31.—Coryphantha erecta. 
one meter in diameter ; the larger branches are prostrate below, ascending or erect above, 
3 am. rong the Spine areoles are circular, white-felted when young; the spines are glossy 
yellow, the radials widely spreading; central spines often wantin i i 
porrect, and shorter than the radials. B oF sometimes sontary 
Mammillaria evarescentis, accordin i i 
v , g to Lemaire (Cact. Aliq. Nov. 4. 1838 
lara improperly applied to this species. , + 1838), was 8 
e three names Mammillaria evanescens, M. evar i 
| v , M. evarescens, and M. ev 
as synonyms of M. erecta by Forster (Handb. Cact. 243. 1846). arascens were sted 
I Hlustrations: Schumann, Gesamtb. Kakteen 504. f. 82; Méllers Deutsche Girt. Zeit. 
25: 475- f. 8, No. 7; Lemaire, Icon. Cact. pl. 10, as Mammilaria erecta. 
igure 30 is from a photograph of a plant collected by Dr. Rose in Mexico in 1906 
(No. 1072a) and figure 31 is from a : 
ae photograph of a plant growing in t i - 
lection in southern California which was made by Ernest Braunton, he Huntington ol 
7 13. Coryphantha elephantidens Lemaire, Cactées 35. 1868. 
> Mammnillaria elephantidens Lemaire, C i 
? ; , Cact. Aliq. Nov. 1. 
Echinocactus elephantidens Poselger, Allg. Gartenz. 21 ion 
Cactus elephantidens Kuntze, Rev. Gen. Pl. 4: 260. 1891 53: 
