BARTSCHELLA. 57 
small, rotate, nearly 2 cm. broad; perianth-segments pinkish with pale margins, linear-oblong, acute, 
the outer ones ciliate; filaments reddish; upper part of style and stigma-lobes green. 
Collected by J. N. Rose and Wm. R. Fitch on hills of Devil’s River, Texas (No. 1 7991). 
Plate vit, figure 4, shows the type, which flowered in the New York Botanical Garden, 
March 31, 1914; figure 4a shows a tubercle with its gland-bearing groove. 
8. Escobaria lloydii sp. nov. 
Plant growing in clumps and resembling a small species of Echinocereus; old plants bearing naked 
corky tubercles; radial spines about 20, spreading, slender, white; central spines several, stout, with 
black or with brownish tips, 2 cm. long; flowers greenish with a central stripe on outside, 2.5 cm. long; 
filaments, style, and stigma-lobes green; fruit red, globose to short-oblong, 6 to 12 mm. long; seeds 
black, pitted, globose, 1 mm. in diameter. 
Collected by F. E. Lloyd in foothills of Sierra Zuluaga, Zacatecas, Mexico, March 29, 
1908 (No. 5). 
This species is near Escobaria tuberculosa, but it has much stouter central spines and 
greenish white, eciliate inner perianth-segments. 
SPECIES PERHAPS OF THIS RELATIONSHIP. 
MAMMILLARIA EMSKOETTERIANA Quehl, Monatsschr. Kakteenk. 20: 139. 1910. 
Cespitose, globose to short-cylindric, 5 em. high; tubercles conic, their axils naked; radial spines 
20 to 25; central spines 6 to 8, setaceous, white with black tips; flowers brownish yellow, 3 cm. long. 
Type locality: Not cited. 
We obtained a specimen of this plant from Quehl in 1913, but it has not done well nor 
has it flowered and we have not been able to refer it to any described species, but believe 
that it may be near Escobaria tuberculosa. Mr. Quehl believed that it was near Mam- 
millaria dasyacantha, but if it came from San Luis Potosi, as Mr. Quehl supposed, it is doubt- 
less specifically distinct from both. The following note is a translation of some remarks by 
Mr. Quehl: 
“Our illustration shows a grafted specimen which has naturally grown more corpulent and 
consequently permits one to see better its general structure and the arrangement oF the spines: 
Ungrafted specimens are thicker, lower, and, without other characteristics, can not be istinguis 1e 
from a red-spined Mammillaria pusilla var. multiceps. Only a closer inspection reveals t . wart- 
furrows and consequently the Coryphantha. The similarity is so great that I suspect that the new 
ae . : i d the plants are either set 
species is already more disseminated though not correctly recognized an 
aside or ignored s a form of Mammillaria pusilla. The plants belor* me were raised by the ‘species, 
: deburg, after whom I have n eS, 
Emskétter, fancy and commercial gardener, of Magdeburg t Mexico may be regarded as its 
from mixed seed which he received from San Luis Potosi, so tha 
home.” 
Illustration: Monatsschr. Kakteenk. 20: 139. 
/ ©) 9, BARTSCHELLA gen. nov. 
ited with the 
Usually cespitose, globose to short-oblong cactus; tubercles large, somewhat unite me 
adjacent ones ae in ee etein species of Echinocactanae, terete, not grooved, Juicy, ne ky spines 
both radial and central, the latter usually hooked; flowers borne near top of p veil eed , ar etark 
or lavender: fruit short, hidden among the tubercles, seemingly dry, circumscisst i se ot cd 
pitted, with a narrow cylindric base, slightly constricted above; hilum large, slightly depres , 
triangular. 
Type species: Mammillaria schumannii Hildmann. 
While this genus is probably to be referred to the Coryphanthanae, it ossesses some 
characters of certain species of Echinocactanae, but the origin of the flower is quite i cren 
from any of them. The flower is large, like that of some species of Coryp nan ia u . e 
tubercles are not grooved and the seeds are not brown and reticulated. It differs from the 
