. The Cactaceae : descriptions and illustrations of plants of the cactus family. 96 the; cactaceae. Illustrations: Nov. Act. Nat. Cur. i6: pi. 22; Ann. Rep. Smiths. Inst. 1908: pi. 14, f. 4, as Mammillaria karwinskiana. Plate XI, figure 2, shows a plant collected by Dr. Rose in Oaxaca in 1906, which flowered in Washington, April 16, 1907; plate ix, figure 2, shows a plant collected by B. P. Reko also in Oaxaca, which fruited in the New York Botanical Garden in 1918. Figure 92 is from a photograph of a plant collected by Dr. Rose in Oaxaca in 1906. Related to this species is the following: Mamm
. The Cactaceae : descriptions and illustrations of plants of the cactus family. 96 the; cactaceae. Illustrations: Nov. Act. Nat. Cur. i6: pi. 22; Ann. Rep. Smiths. Inst. 1908: pi. 14, f. 4, as Mammillaria karwinskiana. Plate XI, figure 2, shows a plant collected by Dr. Rose in Oaxaca in 1906, which flowered in Washington, April 16, 1907; plate ix, figure 2, shows a plant collected by B. P. Reko also in Oaxaca, which fruited in the New York Botanical Garden in 1918. Figure 92 is from a photograph of a plant collected by Dr. Rose in Oaxaca in 1906. Related to this species is the following: Mammillaria knippeliana Quehl, Monatsschr. Kakteenk. 17: 59. 1907. Stem solitary, about 7 cm. high by 6 cm. in diameter, slightly depressed at apex; tubercles when young pyramidal, 4-sided, 8 mm. long, their axils setose; areoles circular, at first white-woolly, soon glabrate; spines usually 6, up to 6 cm. long, whitish with blood-red or brown tips, sometimes accompanied with smaller spines; flowers and native country Fig. 93.—Neomammillaria standleyi. Fig. 94.—Neomammillaria parkinsonii. 39. Neomammillaria praelii (Miihlenpfordt). Mammillaria praelii Miihlenpfordt, Allg. Gartenz. 14: 372. 1846. Mammillaria viridis praelii SaXm-Dyck., Cact. Hort. Dyck. 1849. 16. 1850. Mammillaria viridis Saljn-Dyck, Cact. Hort. Dyck. 1849. 116. 1850. Mammillaria inclinis Lemaire, lUustr. Hort. 5: Misc. 9. 1858. Cactus praelii Kuntze, Rev. Gen. PI. i: 261. 1891. Cactus viridis Kuntze, Rev. Gen. PI. i: 261. 1891. Globose, light green, sunken at the apex; axils of the tubercles lanate and setose; tubercles somewhat 4-angled; spine-areoles villous; spines 4, radial, forming a cross, the uppermost and lower- most elongated; flowers and fruit unknown. Type locality: Guatemala. Distribution: Guatemala. We do not know this species but we are following previous authors in our classification of it. When flowers and fruit become known this may be subject to modification. Until recently it and Ne
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