ASTROPHYTUM. 183 
Dr. C. A. Purpus who knows this species very well writes that it has two very different 
forms. ‘The gray or grayish-white form grows near Torreon, in Cerro de la Bola, and in the 
mountains near Viesca, all in Coahuila. The more greenish lower form is abundant in the 
Sierra la Tabla, near Guascama or Minas de San Rafaél, San Luis Potos{. It usually grows 
in the open mesa among broken stones, but is sometimes associated with other plants, 
such as Opuntia leptocaulis. 
Cereus inermis Scheidweiler (Bull. Acad. Sci. Brux. 6': 88. 1839), usually referred 
here as a synonym, was never published. 
Echinocactus, myriostigma hybridus is advertised by Haage and Schmidt, but we do 
not know its origin; the varieties, columnaris and nudus, are in the trade. 
Many hybrids are produced with this species as one of the parents. In 1896 (Monats- 
schr. Kakteenk. 6: 20) Fl. Radl* named and described twelve hybrids, while in 1907 Schellet 
(Handb. Kakteenk. 151, 152) listed 59 hybrid names under Echinocactus myriostigma. 
Illustrations: Monatsschr. Kakteenk. 29: 81; 
Gartenwelt 15: 537, as Echinocactus myriostigma 
columnaris; Lemaire, Icon. Cact. pl. 16; Schelle, 
Handb. Kakteenk. f. 78; Méllers Deutsche Gart. 
Zeit. 25:474.f.6, No. 11; 486. f. 19; 29: 89. f. 11; 
Cycl. Amer. Hort. Bailey 2: 515. f. 746; Stand. 
Cycl. Hort. Bailey 2: f. 1374; Gardening 9: 617; 
Gard. Chron. III. 52: f. 103; Loudon, Encycl. 
Pl. ed. 3. 1376. f. 19368; Blithende Kakteen 2: 
pl. 110; Engler and Prantl, Pflanzenfam. 3%: f. 
56, E; f. 62; Monatsschr. Kakteenk. 6:22; 12: 4; 
18: 9; 29: 141; Schumann, Gesamtb. Kakteen f. 1; 
Curtis’s Bot. Mag. 71: pl. 4177; Gartenwelt 15: 
537; 17: pl. opp. 412; Journ. Hort. Home Farm. 
III. 59: 631; De Laet, Cat. Gén. f. 16, 22; Watson, 
Cact. Cult. rr2. f. 40; ed. 3. f. 27; Gard. Chron. 
III. 12: 789. f. 129, as Echinocactus myriostigma; 
Forster, Handb. Cact. ed. 2. an f. ae —_ Fic. 193.—Astrophytum myriostigma. 
Journ. 1: pl. for September; 164; Illustr. Hort. 6: ce, a aa: 
pl. 292; Riimpler, Sukkulenten 188. f. 106; Orcutt, West Amer. ee 33 aaneavcate a“ 
56. f. 1885; Monatsschr. Kakteenk. 3: 159. f. 111;7: 170; Lemaire, 50.8 45 
Gart. Zeit. 5: 369; Orcutt, Rev. Cact. opp. 41. . A 7b ; 
Plate exre figure 3, shows a flowering plant in the collection of the New York Botan 
ical Garden, received in 1901 from M. Simon, St. Ouen, Paris Fra, et Le since 
bloomed several times. Figure 193 is from a photograph of a pla 
Purpus in northern Mexico in 1905. 
2. Astrophytum asterias (Zuccarini) Lemaire, Cactées 50. 1868. 
iss. Mii 2313. 1845. 
Echinocactus asterias Zuccarini, Abh. Bayer. Akad. Wiss. Miinchen 47: 13 4 
i broad; ribs 8, very low, almost flat on 
nly 2 to 3 cm. high, about 8 cm. 3 rb 0S realtor 
top the cutee hoses evan depressions, containing tufts of wool, areoles promine 
i ellow. oe , 
felted, 4 to 5 mm. apart, spineless; flowers 3 cm. long, y : - — 
uinil, conspicuum, imperiale, lapaixtt, lesau- 
*The names given by Radl are as follows: amabile, bedinghausu, beg 
eri, mira le . | 7 init s, candidus, 
al RA lak ata Stele ttt regale, and schilinsh> enus, bedinghausi, beguint, bellus, 
i ids: bilis, amo , Oe per 2 
Under this species Schelle lists vo oe Des crass sipinus, cinerascens longispinus, cinerascens parvi 
iS, ct 5 spt ens crassi ! "asce ner  barei- 
cereiformis, cinerascens, cinerascens brevispinuss, finer i vahit, deladti diademalus, egatssims, rectus 
m . cornutus can Sy Us, py sis, insignis, jusb aixi, 
femora ards, gabrescens,honbury imperial's inca nc vous pentagonus, pictus, princeps, quad- 
us, gardet, g S, yt, YM ini, mirabilis, nobilis, octag , pen. 5) Picts, Pee. stalis, 
lesaunieri, lophothele, lophothele ceretformis, martint, i speciosus, 
} ‘linskyt, schumannt 
ratus, rebuti, regalis, regulare, regulare spinosum, robustum, scht yt, 
Splendidus, variegatus, weberi, and zonatus. 
