MAMMILLARIA 



MAMMILLARIA 



975 



plish above, the upper longer, erect, the lowest horizon- 

 tal or deflesed: fls. 1 in. in diam., pale purple: fr. % in. 

 long, red, with a conical cap formed of the withered re- 

 mains of the flower: seeds brown. Tex. 



cornilta, Hiklra. Depressed-globose or hemispher- 



!ll, : 



th,- spn, 

 c;ited. b( 

 jMexico. 



ill, i^i i> ish green: tubercles large, flattened and 



1 11 1 olae lound : radial spines 5-7, stout, short, 



1 1 Mliant, grayish, the upper longer, central 



1 l"ii^ as the radials: fls. rose-red. "In age 



s t ill dH: and the plant, covered with imbri- 



i1l like tubeicles, reminds one of ,i piueajiple." 



llaria vivipara (X K). No. 19. 



24. eleph&ntidens, Lem. Rather large, glaucous 

 ^rt*en: tubcn-les very large and thick, becoming hori- 

 zontal or (U-tlfXt'il and somewhat bilobed: spines G-8, all 

 radi l1, stout, yellowish or gray, appressed to the plant 

 and somewhat recurved: ils. rose-color, 3 in. in expan- 

 sion. Mexico. 



25. longim&mma, DC. Cespitose, bright green, form 

 ing large, low clumps: tubercles sometimes more than 2 

 inches long: spines straight, pubescent; radials 7-10; 

 central 1: lis, 2 in. or more in expansion. Mexico. 



Var. uberlf6rmis, Sebum. Tubercles darker green: 

 radial spiues seldom more than 4; centrals none. 



Viir. globdsa, Schum. Tubercles dark green, very 

 long: radial syiines as many as 12; centrals 2-3. 



Var. sphaeriea, Engelm. Tubercles about 1 in. long, 

 radial spin.'s IJ-U; central 1. Tex. 



21;. Roseina, Brandg. {^f. Madliina.Quehl.). Upright 

 liranches 1-l.V^ ft. long, lH-3 in. in diam.: tubercles 

 ratlier remote, flattened and appressed, later spreading: 

 radial spines 8; central 1, brownish, strongly hooked, 

 1-2 in. long, twice as long as the radials: fr. bright red, 

 flat on the broad top and much shorter than the tu- 

 bercles. 



27. setisplna, Engelm. Upright branches 8-12 in. 

 long, 2—4 in. in diam., forming dense clumps: tubercles 

 rather crowded, ovate, short: spines white with black 

 tips; radials 10-12; centrals 1-4, stouter, the lower one 

 strongly hooked, often twisted, lH-2 in. long. 2 or 3 

 times as long as the radials: fr. red, much exceeding the 

 tubercles. 



28. Pdndii, Greene. Upright branches 10-15 in. long, 

 l'.2-2 ill. in (liani.. making much smaller clumps than the 

 twoprrfrdiii;;: tubercles short, ovate, not crowded; axils 

 setose: spines in three series, outer 15-25, short, white; 

 inner 5-8, brown, longer; central row 3, brown, usually 

 2 of them strongly hooked, 1 in. or more in length, much 

 exceeding the other spines: fr. oval or obovate, dull 

 purplish red, /4 in. long. 



29. Hilei, Brandg. Upright branches lK-2 ft. high, 

 2-3 in. in diam.: tubercles rather crowded, short-con- 

 ieal from a broad base: spines sub-3-serrate, outer 

 15-25; centrals 6-9, darker, the lower one much stouter, 

 an inch or more long, usually straight bvit sometimes 

 hooked, twice as long as the other spines: fr. obovate, 

 red. 



30. elongata, DC. (M. Mnsa, Link & Otto). Erect, 

 G-7 in. long, 1-1}^ in. thick: raclial spines 10-18, yellow; 

 centrals none : fls. white or yellowish. Central Mex. 



Var. echinita, Sohum. (M.ecliindta and M.crlihmrin , 

 DC). Radials as many as 20, yellow; centrals 2-3, 

 brown. — A stout form. 



Var. tenuis, Schum. (3f. tenuis, DC. M. minima, 

 Salm. ) Radial spines about 20, pale yellow; centrals 

 none — The most slender form, only % in. thicit. 



Var. stMla-aurd.ta, Schum. Stems somewh.at thicker: 

 spines golden yellow; 1 central usually present. 



31. Le6iia, Pos. Stems stouter, glaucous, upper axils 

 woolly: radial spines about 30, radiant, slender, white; 

 centrals 6-12, much stouter; the upper ones longest, 

 ivory white at base, dove-color or bluish above. Nuevo 

 Leon, Mex. 



32. decipiens, Scheidw. {M. GuilleminiAna, Lem.). 

 Irregularly cespitose, somewhat clavate, often rosy: 

 tubercles cylindrical; axils sparingly bristly: radial 

 spines 7-12, whitish; centrals 1-2, brown, longer; all 

 slender. Mex. 



33. Sr&gilis, Salm. Stems low, usually as broad or 

 broader than high, extremely proliferous, the offsets so 

 lightly attached that they soon fall by their own weight: 

 radial spines 12-14, white; centrals none or 1, rarely 2, 

 wliite, with dusky tip. Mex. 



.14. laaiac&ntha, Engelm. Low, usually globose or 

 depressed-globose : tubercles slender, axils naked : 

 radial spines as many as 40-80, feathery; centrals none. 

 Tex. 



Var. denud^ta, Engelm. {if. Jiiingei, Hort.). Larger, 

 both plant and tubercles: spines naked. Cact. 



35. plumdsa, Web. Densely cespitose, at length form- 

 ing masses 6-10 in. in diameter; axils long-hairy: radical 

 spiues about 40, feathered to the tip; centrals none.— 

 This and the preceding are like feathery balls, if. pln- 

 mosa is sold usually under the name of M. liisinciinthn , 

 to which it appears to be rather closely related. North 

 Mex. 



36. senilis, Salm. "Proliferous at base: axils not se- 

 tose: tubercles crowded : spines all white; exterior very 

 numerous, erect-spreading, hair-like, flexuous; centrals 

 4-6, a little stronger, the upper and lower hooked." 

 Cliihuahua, Mex. 



37. barbita, En^'idm. Gloliosi-di'pressi'il: axils not 

 setose: extrriur spint-s vi-ry iiiiitirrous. piinse; interior 

 stronger, yrllcwish, lO-l.',; ct^ntral s(ili!ar\-, stout-hooked, 

 yellowisli, uut much longer than the others: fls. small, 

 not remote from the center; sepals fimbriate: berry 

 "green." Near Chihuahua, Mex. 



38. vfitula, Mart. Subglobose or becoming subcylindri- 

 cal: axils not setose: radial spines bristle-like, at first 

 25-30, obliquely spreading, later twice as many and 

 horizontal ; centrals 1-3, yellowish brown, scarcely 

 stouter or longer. Mex. 



.39. Candida, Scheidw. (M. spluerdtricha, Lem.). At 

 length cespitose, globose, becoming longer: vertex de- 

 pressed: axils setose: radial spines bristle-like, more 

 than 50, horizontal and interwoven; inner spines 8, 10, 

 12, or more, a little stouter and upright: fls. flesh-color 

 or pinkish. 



40. puBilla, DC. (Ca'c?H«s(c?M/ws, Willd. M.stelUris, 

 Haw.). Low, globular, proliferous, making large 

 masses: tubercles cylindrical, small and loosely spread- 

 ing; axils with long, hair-like, tortuous bristles: radial 

 spines 12-20, very soft and flexuous; centrals 4-6, yel- 

 lowish, a little rigid, pubescent: fls. yellowish white. 

 W. Indies. 



Var. miilticeps, Salm. Larger: tubercles upright, 

 crowded: radial spines numerous; centrals 6-8, slender, 

 pubescent, reddish yellow. Mex. 



