NEOMAMMILLARIA. 103 
Solitary, cylindric or somewhat thicker above; axils of tubercles setose: tubercles 12 mm. long, 
flattened dorsally, angled, pointed; spines 4, ascending, short, grayish with purplish tips; flowers 
inconspicuous, reddish; inner perianth-segments short-acuminate; anthers white; style white, longer 
than the stamens; stigma-lobes 8, greenish: fruit unknown. 
Type locality: Near Oaxaca, Mexico. 
Distribution: Southern Mexico. 
This species was collected by Baron Karwinsky near Oaxaca City, about 1832. It 
has been reported over a large area of central Mexico, but is doubtless much more restricted 
in range. One small specimen from near the type locality was sent to Washington in 1909. 
het 
Fic. 100.—Neomammiillaria pyrrhocephala. Fic. 101.—Neomammillaria polyedra. 
Mammillaria anisacantha Hortus first appeared as a synonym of M. polyedra anisa- 
cantha Salm-Dyck (Cact. Hort. Dyck. 1844. 11. 1845) and then as a synonym of M . polyedra 
laevior Salm-Dyck (Cact. Hort. Dyck. 1849. 17. 1850); neither of the varieties was here 
described, but the latter was briefly characterized by Labouret. M: ammillaria scleracantha 
is cited from Monville’s Catalogue of 1846 but we have not seen this publication; it does 
occur as a synonym of M. polyedra scleracantha in Labouret s Monograph, p. 105 ; | 
Illustrations: Martius, Nov. Act. Nat. Cur. r0; pl. 18; Blahende Kakteen 2: pl. 112; 
Sch ; . 271. f. 194, as Mammillaria polyedra. . 
Pitta ee fines chow. the plant sent from the Berlin Botanical Garden in 19 i 4 
which flowered in the New York Botanical Garden on April 1, 1918. Figure ro1 shows the 
type plant, being a reproduction of the first illustration cited above. 
53. Neomammillaria conzattii sp. nov. 
Short-cylindric, 8 cm. high, sometimes branched at a 
i i icuous white bristles; tubercles short, 4 to 5 mm. 
tubercles bearing abundant white wool and conspic ee ee qos, all radial Somewhat spreading, 
long, somewhat led; young spine-areoles woolly ; 4 OF what Sf 
brownish ‘the tips usually darker than the bases; flowers opening in bright sunlight, w hite, campant 
late, sometimes tinged with red, about 2 cm. long, the segments somewhat spreading, narrowly g, 
the outer ones serrulate, apiculate; style pale green, stigma-lobes 3 white. 7 
Collected by C. Conzatti on Cerro San Felipe, Oaxaca, In 1907 and flowered in 1913 
in 1 d in April 1922. 
(type); collected again in 1921 (No. 4140) and flowere ; 7 
Figure 104 1s from a photograph of the plant collected by C. Conzatti in 1921. 
pex, dark green, very milky ; axils of young 
