ECHINOCACTUS 



ECHINOCACTUS 



515 



Lem.). Depressed- 

 i^'h: ribs 13, acute: 

 my;, yellowish, 1 in. 



and scarcely longer 



23. Edudne, DC. ( ?:. v ■ 

 globose, 5-7 in. in .! - 

 radial spines 7, bi":i 

 or more long; ceiitr:: , 

 than the others: tl"' ■ i- 

 long. Mexico. 



24. TexSnsis, Hopf. Mostly depressed (sometimes 

 globose), 8-12 in. in diam., 4-0 in. high, simple: ribs 

 mostly 21 (sometimes 2.. and in smaller specimens 13 

 or 14) and uudulatt- : -^j-inr^ ^rout ami tasciculate, red- 

 dish, compressed : x\\i- ■ stcriMi- i; ,,]■ 7 raihaiit. straight- 

 ish or curved, unequal. ' _. t^ l..ui- lililis in. h.ng in some 

 cases, one and one-Ht'th tn 2 in. in i.tli.r-^. nuiidi shorter 

 tlian the solitary and stout recurved central, which is 

 sometimes oue-sixth to H in. broad : flowers about one- 

 fifth in. long, parti-colored (scarlet and orange below 

 to white above). Texas and northeastern Mexico. 



25. Imoryi, Engelm., var. reotispinus, Eugelra. Fig. 

 74.5. Globose, at length cylindrical: ribs 13-21, obtuse 

 and strongly tuberculate: radial spines 7-9, very unequal, 

 the 3 upper ones 4-5 in. long, the lower lH-3 in. long 

 and paler; the central very long (12-13 in.), straight or 

 slightly decurved. Southwestern United States and 

 northern Mexico. 



26. recdrvas, Link & Otto. Subglobose and very stout: 

 ribs about 15, covered with broad, darli red spines, the 

 radials spreading, the central one recurved and very 

 .stout. Mexico ( ;)• 



27. setisplnus, Engelra. Subglobose, 2 to three and 

 one-fifth in. in diam. : ribs 13, more or less oblique, 

 often undulate or somewhat interrupted: radial spines 

 14-10, setiform and flexible, two-flfths to four-fifths in. 

 long, the uppermost (the longest) and lowest ones yel- 

 lowish brown, the laterals white; central spines i-3, 

 setiform and flexuous, dark, 1 to one and one-fifth in. 

 long: flowers funnelform, one and three-fifths tu 3 in. 

 long, yellow, scarlet within. Texas .and Mexico. 



28. heWphorus, Lem. Depressed globose, light green, 

 with pui-ple-red veins: ribs about 20, compressed, ob- 

 tuse: radial spines 9-12, very stout and porrect; central 

 spines I— 1, stronger and annulate; all the spines pearl- 

 gray. Mexico. 



29. obvallatus, 

 very numerous, v 

 the apex, unequa 



•I "ise, depressed: ribs 

 i"st abundant towards 

 ut. whitish; the 3 up- 

 rong, the others (cspe 

 : purple, with whitish 

 suggested by the ap- 

 :)f flowers surrounded 



cially the lowest) small 

 margin. Mexico. -The r 

 pearance of the terminal 

 by a fortification of !-troii 



30. crispatuB, Dr. ( Z:.'. 'ir,//, „-. Link). Globose, 5 in. 

 or more high: ribs :;(i-i;n. rwnipr.-^.-d and sharp, more 

 or less unduIate-cris|iH.l: spin, s 7-11, widely .spreading, 

 more or less fl.attened. the upper larger and brown at 

 tip. the lower shorter and white, or all of them brown: 

 flowers purple, or white with purple stripes. Mexico 

 and Central America. 



cccf. Tiihereuhite. us i„ .Voun.nll.i r!a. 



31. hexaedrdphorus, Lem. .'\|..r. •;■ i, -, -l.ilmlar, dark 

 gray: ril)B deeply tuberculatr. L-niiiu' th.' a|i].earance of 

 a Wajnmillaria, with hexagonal tnl..r.l, s : ra<lial spines 



longer; all the spines annulate, reddish brown: flowers 

 white, tinted with rose. Mexico. 



32. lopothele, .Salm-Dy.-k. Globose, strongly tubercu- 

 late, after tin- ]iiaiiih r ■■i' !\f jiiiini Jl.iria: tubercles quad- 

 rangular, bi .niiii.' , I i-i ; . ' - 1 iiM.re or less porrect, 

 long, rigid, aiiil r,, ..I ,i ■ ml solitary or want- 



BBB. Cenlral spines 4 | ..' nr -i in tiileri and sometimes 

 ii ill Scopa ). 

 c. Bibs less than IS. 

 .33. robustus, Otto. Clavate and stout: ribs about 8, 

 compressed, vertical- radial >|.in.s ab.iut 14, the upper 

 ones slender, the l..\vi -t :; st.-..n-.r: .rntial spines 4, 

 4-angled at base, tran-v.i-.lv -iTiair. tlic lowest one 

 largest; all the spin.-s pinpl.-red, V..-.: in. long: flow- 

 ers golden yellow. .Mexico. 



34. Ottdnis, Link i- Otto. r)ri.,vsv,.,l-globoseorovate, 

 3-4 in. liigh: rilw iii-Vj, ,,l,tii-,-: radial spines 10-18, 

 slender. ytll.i\vi>li, na.!-.- ..i- i.~s ^tiai-lit and spreading, 

 about '., m. l..n-; .■.•ntral ^ynn-. 1. dusky red, stronger, 

 the uppermost very .-.bort. the two laterals horizontal, 

 the lowest longest (1 in. ) and defiexed : flowers lemon- 

 yellow, becoming 2-3 in. in diameter. Mexico. 



35. bicolor. Gal. Globose-ovate, stout, 114-4 in. in 

 diam., sometimes becoming 8 in. hiirh : rilis 8. oblique 

 and obtuse, compressed, tuliii-.-u],[ti-nii.rru|.|(il : lower 

 radials and centrals varii :.Mt,, I i.,l .mil \vliii,.: radials 

 9-17, spreading and rei-iiiv i .1. ^l.n.h r ami lailic-r rigid, 

 the lowest one %-l in. |..nu-. il,.' l.n.aaK I - in. long 

 and about equaling tin' L'- 1 llai iIiaimh, :t-},v h|,|ht 



ones; centrals 4, fi,at .and il x i~. ]'.-:: in, hm:;, ilic 



uppermost thin and not Imh:.--..,- i han ilM'<ia<'t ami n-id 

 laterals, the lowest very sti.m. |H.riaM-i and vmy Innir: 

 flowers funnelform, bright purple, 2-3 in. lung. >;orth- 

 ern Mexico. 



oc. Mibs 13-27. 



36. orthacfinthus, Link & Otto. {E. flnvovlrens, 

 Scheidw.). Globose, yellowish green: ribs 12 or 13, 

 vertical, acute: radial spines 14, unequal, straight and 

 spreading; central spines 4, stronger, the lowest the 

 largest; all the spines rigid, annulate, and grayish 

 white. Mexico. 



37. intert§xtus, Engelra. Ovate-globose, 1-4 in. high: 

 ribs 13, acute, .somewhat oblique, tuberculate-inter- 

 rupted, the tubercles with a woolly groove : spines 

 short and rigid, reddish from a whitish base and with 

 dusky tips; radial 10-25, closely appressed and inter- 

 woven, the upper 5 to 9 setaceous and white, straight, 

 one-fifth to K in. long, the laterals more rigid and a 



mynostigma 



little longer, the lowest stout and short, a little re- 

 curved; central'^ 4, the 3 upper ones turned upward and 

 exceeding the raditds and interwoven with them, the 

 lower one very short, stout and porrect: flowers about 

 1 in. long and wide, purplish. Texas and northern 

 Mexico. 



38. 6rcuttii, Engelm. Cylindrical. 2-3M ft. high, 1 ft. 



rarely decumbent: ribs !'■-_'_'. ..It. n ..Mniue: spines ex- 

 tremely variable, anglr.l t.. n It ',-; m. wide; radials 

 11-13, unequal, lowest an.l ^. \ . ? .1 I ii. i iN tlnnnest ; cen- 

 trals 4: flowers about '_' 1 1 I i ' n in .-.-nter, 



bordered by light gret III 1 . i..inia. 



39. Jbhnsoni, Parry ' i ■ 17-21, 

 low, rounded, tubercul .i i . I . . -. t. often 

 oblique, denseh .'..v.!..! \ iili -i iun-li i.-d.lish gray 

 spines: r.adial -|nn. ^ l"-n iln.. lili h^ tn one and one- 

 third in. loni:. tin ui.].. i l.'n,- -i . ntrtds 4, stouter, 

 recurved, .abnnt I ' in L.n. tl i - J tn two and three- 

 fifths in. l.,iig ,111.1 \M.I. . li..in .1. . |. 1. .1 t.. pink. Utah, 

 Neva.la, (■aht..inia. 



40. polycephalus, Tn 





