Cactus missouriensis (Sweet) Kuntze , in Small, Flora of the Southeastern United States, p.812, 1903
Description:
6. Cactus Missouriénsis (Sweet) Kuntze.
Stems usually simple, subglobose, about
3-5 cm. high, with cylindric-ovoid tubercles 12-14 mm. long, these slightly grooved:
spines narrow ; radials 13-17, whitish, bristle-like, 8-10 mm. long, straight ; central solitary,
stouter, 10-12mm. long, puberulent, or often wanting : flowers yellow to reddish, mostly
2-4 cm. long : stigmas 2-5 : fruit subglobose, 6-8 mm. in diameter, scarlet : seeds subglobose,
about 1 mm. in diameter or a little smaller, black, pitted.
In dry soll and on prairies, South Dakota to Colorado, Kansas and Texas.
Cactus similis (Engelm.) Small , Flora of the Southeastern United States, p.812, 1903
Description:
7. Cactus similis (Engelm.) Small.
Stems proliferous, forming tufts 2-3 dm. broad :
tubercles crowded, often in 8 rows, with woolly axils : spines various ; radials 12-15, white,
straight, puberulent, very slender, commonly equal ; central solitary, stouter or wanting :
flowers yellow or reddish yellow, 2.5-5 cm. long : stigmas 5 : fruit globose-obovoid, scarlet,
3.5-5 mm. long : seeds subglobose, 1.5 mm. to fully 2 mm. in diameter, conspicuously pitted.
[Mamillaria similis Engelm.]
In dry soil, Kansas to Colorado and Texas.
Cactus robústior (Engelm.) Small , Flora of the Southeastern United States, p.812, 1903
Description:
8. Cactus robústior (Engelm.) Small.
Stems usually simple, obovoid, 3.5-5 cm. high,
with the loosely arranged tubercles often in 13 rows : spines various ; radials 10-12, rather
stout, 6-16 mm. long ; central solitary, stout, about 12 mm. long : flowers pale yellow,
3.5-4 cm. long and broad : stigmas 7-8 : fruit globose-obovoid, 6-10 mm. long: seeds about
2 mm. long. [Mamillaria similis var. robustior Engelm.]
In sandy soil, Oklahoma and the Indian Territory to Texas.
Cactus radiósus (Engelm.) Coulter , in Small, Flora of the Southeastern United States, p.812, 1903
Description:
10. Cactus radiósus (Engelm.) Coulter.
Stems oblong-ovoid or cylindric, 5-12
cm. high, simple or sparingly proliferous : spines various ; radials 20-30, white, or darker
near the apex, 6-8 mm. long, conspicuously unequal, straight ; centrals 4-5, stouter than
the radials, 8-12 mm. long, yellowish tawny, the lower shorter than the upper : flowers
violet or deep purple, 3.5-5.5 cm. long and broad : fruit oval, about 2 cm. long, green:
seeds narrowly obovoid, fully 2 mm. long, yellowish or brown, pitted.
In dry soil. southern Texas to New Mexico and adjacent Mexico.
Cactus Neo-Mexicánus (Engelm.) Small , Flora of the Southeastern United States, p.812, 1903
Description:
11. Cactus Neo-Mexicánus (Engelm.) Small.
Stems subglobose to ovoid or cylindric,
3.5-10 cm. high, simple or proliferous near the base : spines various : radials l2-40,
slender, mostly 6-9 mm. long ; centrals 3-12, purple : flowers purplish, flat, 5-6 cm. broad :
fruit oval-obovoid, 2 cm. long : seeds oblong-obovoid, about 1.5 mm. long, nearly smooth.
[Mamillaria vivipara ß radiosa Neo-Mexicana Engelm.]
In dry soil, Kansas to Utah, Oklahoma, Texas, Arizona and adjacent Mexico.
© 2002-2007 Jan Mynar
Last modified August 26, 2007