MAMMILLARIA 



aho\p the upper lni„'Li erect the liwest horizon 

 • 1 tl \e 1 ri'5 1 in m diara pile [ urple fr ''4 m 



1 1 \ ith a conic il cap formed of the w ithered re 

 s jf the flower see K hrowa Tex 



cornutaHiIli Dn 111 e il miviho 



MAMMILLARIA 



29 Halei r 





red 



"iO elongita, DC (V densa Lmk & Otto) Erect, 

 G "in long 1-m m thick radial spines 10-lb yellow, 

 centralb none fls white or jellowish Central Mex 



\ ir eclunita, Schum (J/ echm&ta and M eclitnatii 

 Df I Ridiils a', many as 20, yellow centtals 2 J, 

 brown — \ stout form 



\ar tenuis "^ 1 1 (VI DO 1/ mn ma 



Salm ) K liil 1 ] 1 II u centi xl:s 



1356 MammiUaria vivipara (X%) No 19 



elephintidens Lera Rather large, glaucous 



III \ i\ large and thick, becoming hori- 



11 I somewhat bilobed spines G-8, all 



1 h or gray appressed to the plant 



III iiixed fls rose color, 3 in in expan- 



\1 \lio 



longimimma, DC Cespitose bright green, form 

 ar^e low clumps tubercles sometimes more than 2 



s loiu' spines stiai„ht pubescent, ridials 7-10; 



il 1 lis 2 m 01 111 1 m , ^1 m ion Mexico. 

 1 ubenformis ^ lium Tui 1 h s darker green: 



r globosa s hiiin I ul 1 1. iHrk green, very 



:tls 2- J 



sphcenca 



Koseana Br 



)[ 1, I 11. 



f^inehl ^ Upriiiht 



1 ithei it mote flattened ind ippressed la t | i-.;i.liiii:: 

 1 idul spints 8 central 1 brownish sti ii_h hiii.k.-.l, 

 1-2 in long twice as long as the ladi lis ti Im^rlit rt-d, 

 fl it ou the broad top and much shorter th in the tu- 



27 setiBpina, Engelm Upright branches 8-12 in. 

 long 2-4 in in diam forming dense clumps tubercles 

 rather crowded ovate shoit spines white with black 

 tips i-vdiils 10-12 C( nti Us 1-4, stouter the lower one 

 stronffh hooked often t«isted 1^2-2 in long, 2 or 3 

 times as long as the rddials fr led much exceeding the 

 tubercles 



28 P6ndil, Greene Upright branches 10-15 in. long, 

 lV<-2in in diam making much smaller clumps than the 

 two preceding tubercles short 0"^ ite not crowded; a.xils 

 setose spiiif s m three s( ries outer l^-25 short, white; 

 inner j-b bi \\u I n. i iiti U 1 w "! brown, usually 

 2of themst, „.h 1, 1 I I m , i„ le m length, much 

 exceeding th ih i | 111 ti \ d or obovate. dull 

 purplish red ',111 1 11^ 



Var Stella aurata ^1 s vh t thi ker 



spmes gol len 11 1 



31 Ledna P ■- I 1 axils 

 wooUv radiil [ 1 1 lute 

 centrals 0-12 11 1 111 I 1 ^est 

 ivory white at b ISC loNccoiui 1 I lui U I Nuevo 

 Leon, Mex 



32 decipiens, Seheidw (M Giiilleit nuttna Lem ) 

 Irregularly cespitose somewhat cla\ate often ros\ 

 tubercles cylindrical axils spviinglv bristlj radial 

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

 slender. Mex. 



33. frigilis, Salm. Stems low. usually as broad or 

 broader than high, extremely proliferous, the offsets so 

 lightly attached tli:it thi y s.imh fall by their own weight: 

 radial spines 12-1 1, whitr; emtrals none or 1, rarely 2, 

 white, with dusky lii.. -'\Kx. 



.■54. lasiacintha, Engelm. Low. usually globose or 



depressed-globose : tubercles slender, axils naked : 



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



Tes 



^^. !,■' 



Ijarger, 



Var. denudita, En ere 

 both plant and tuKeiTli's: -.iiinrs nikni. Curr. 



35. plum6sa, Wi li. iim-.ls r, -|iiio-i , nt hn-ili form- 

 spines about 40, fealheleil lu llie ti|.; eeallals luiue. — 



This and the preceding are like feathery balls. J/, jilii- 

 mosa is sold usually under the name of .1/. hisinctiiilli(( . 

 to which it appears to be rather closely related. North 

 Mex. 



3G. senilis, Salm. "Proliferous at base: axils not se- 

 tose: tubercles crowded: spines all white; exterior very 

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

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

 Chihuahua, Mex. 



Globose-depressed: axils not 



37. barbata, Engeln 

 setose: exterior spine 

 stronger, yellowish. 10 

 yellowish, not 11m. li 1 

 not remote fn.iii tlie 

 "green." Near (Jliiliu: 



38. vStula, Mart. 8u 



berry 



;loljo,..e ur Ijecuiuiui; subeylindri- 

 ,<lial 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. cindida, Seheidw. {3f. splKerStricJin , 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. pusilla.DC. (Cn'c^HSs/p^rJ^j/.t.Willd. M.stelUris, 

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

 masses: tubercles cyliudriml. ■.ninll iniil Im.sely spread- 

 ing; a.xils with long, hail- like, t.iiiu. HI, l.nMlr,: radial 

 spines 12-20, very soft ;uiil ilrxiMus; emiMiN Mi, yel- 

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

 W. Indies. 



Var. miilticeps, Salm. Larger: tubercles upright, 

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

 pubescent, reddish yellow. Mex. 



