56 THE CACTACEAE. 
August 10, 1921, near Rio Grande, Starr County, Texas. The plant flowered in Washing- 
ton March 13, 1922. 
Plate vi, figure 1, is from a photograph of the type plant taken by Robert Runyon. 
Figure 53 is from a photograph taken by Robert Runyon. 
5. Escobaria chaffeyi sp. nov. 
Short-cylindric, 6 to 12 cm. long by 5 to 6 cm. in diameter, almost covered by the numerous 
white spines; tubercles rather short, light green, with a narrow groove above; radial spines numerous, 
spreading, bristly ; central spines several, a little shorter than the radials and brown or black-tipped ; 
flowers 15 mm. long, cream-colored or. sometimes purplish; outer perianth-segments ciliate; inner 
perianth-segments oblong, obtuse, entire; style white; stigma-lobes very short, yellowish green; fruit 
crimson, 2 cm. long. 
Collected by Dr. Elswood Chaffey near Cedros, Zacatecas, Mexico, in June 1910 
(No. 5, type), and by F. E. Lloyd near the same locality in 1908 (No. 29). 
Fic. 53.—Escobaria runyonii. Fic. 54.—Escobaria sneedii. 
6. Escobaria sneedii sp. nov. 
Densely cespitose, sometimes with as many as 50 joints, creeping or spreading; joints cylindric, 
up to 6 cm. long, 1 to 2 cm. in diameter; tubercles numerous, hidden under the many spines, terete, 
2 to 3 mm. long, in age naked; groove narrow, hairy throughout its length; axils of tubercles not 
setose; spines 20 in a cluster or more, nearly white, or the larger ones brown at tip, longest one 6 
mm. long, all usually appressed, but the longer ones near top, connivent; flowers small, 10 mm. long 
or less when dry, the outer segments long-ciliate; fruit (immature) a little longer than thick, 5 to 7 
cm. long, green (?), at first juicy, naked; seeds globose, brown, nearly 1 mm. in diameter, pitted. 
This curious little plant was sent us in February 1921 by Mrs. S. L. Pattison from 
southwestern Texas; it was collected by J. R- Sneed, who at first found only three clumps, 
but afterwards a fourth clump was discovered and again it was found in June 1921 just 
after it had flowered. It is known from a single station on the Franklin Mountains, 
Texas. According to Mrs. Slater the flowers are pink to saffron. 
Figure 54 is from a photograph of a single plant sent by Mrs. Pattison in 1921. 
7. Escobaria bella sp. nov. 
_ Cespitose, cylindric, 6 to 8 cm. long; tubercles nearly terete, 1.5 to 2 cm. long, the groove white- 
hairy, with a narrow brownish gland near center; radial spines several, whitish, 1 cm. long or less; 
central spines 3 to 5, brown, unequal, the largest 2 cm. long or more, ascending; flowers central, 
