NEOMAMMILLARIA. 95 
The plant is named for Federico Eichlam (1862-1911), an enthusiastic cactus collector 
who made very valuable discoveries in Guatemala. He published a cactus list in 1911 
(Kakteen-Verzeichnis Abgeschlosen Ende 1910). 
Illustrations: Monatsschr. Kakteenk. 19: 7; Méllers Deutsche Girt. Zeit. 25: 475. f. 8 
No. 14, as Mammillaria eichlamii. 
Figure 91 is from a photograph of a plant collected in Guatemala by F. Eichlam in 
1908. 
J 
38. Neomammillaria karwinskiana (Martius). 
> Mammullaria karwinskiana Martius, Nov. Act. Nat. Cur. 16: 335. 1832. 
(?) Mammillaria fischeri Pfeiffer, Allg. Gartenz. 4: 257. 1836. 
Mammillaria centrispina Pfeiffer, Allg. Gartenz. 4: 258. 1836. 
Mammillaria karwinskiana flavescens Zuccarini in Pfeiffer, Enum. Cact. 19. 1837. 
(?) Mammillaria virens Scheidweiler, Allg. Gartenz. 9: 43. 1841. 
Mammillaria karwinskiana virens Salm-Dyck, Cact. Hort. Dyck. 1844. 10. 1845. 
Mammillaria karwinskiana centrispina Salm-Dyck, Cact. Hort. Dyck. 1844. 10. 1845. 
Cactus centrispinus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus fischert Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus karwinskianus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus virens Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Fic. 91.—Neomammnillaria eichlamii. Fic. 92.—Neomammillaria karwinskiana. 
Globose to cylindric, somewhat flattened above; tubercles terete, yielding milk when pricked; 
axils very woolly and with long conspicuous white or brown-tipped bristles, much longer than the 
tubercles; spines 4, 5, or 6, all radial, sometimes one nearer the center than the others, nearly equal, 
short, brown or blackish at the tips or throughout; flowers nearly 2 cm. long, the scales and outer 
perianth-segments narrow, reddish except at the margins, ciliate; inner perianth-segments broader, 
cream-colored, not ciliate, mucronate-tipped; stamens cream-colored, much shorter than the inner 
perianth-segments; style a little longer than the stamens; stigma-lobes 5, cream-colored; fruit 15 
mm. long, red; seeds brown. 
Type locality: Mexico. 
Distribution: Oaxaca, Mexico. ial short ; 
This species is near Neomammillaria mystax but the spines are usually radial, short, anc 
nearly equal. Specimens sent to Washington in 1918 had some of the lowermost spines 
much elongated and curved backward, sometimes 2.5 cm. long. 
The plant flowers readily in cultivation. Professor C. Conzatti has repeatedly sent 
it to us from Oaxaca. 
