47 



Cacti.— Orcutt. 



48 



M. MASCHALACA'NTHA Cels. 



M . mutabilis lrevior Salm, HI) ed 2, 120. 



Cactus mutabilis OK 



JY1. ieucotricha (leucocarpa) Scheidw. 

 Variety LEUCOTRICHA Monv. 



M. mutabilis et funkii Schdw. 



M. Senkei Poerst. 

 Variety XANTHoTRICHA Monv. 



M. xanthotrieha Schdp. Cactus xanthotri- 

 chus OK. M mutabilis xanthotrieha S. 

 M PALLESCifiNS Scheidw AGZ1841, 42. 



"Lactescens, cylindrica ant ovata; vertice urn- 

 bilicato subacu eis abscondito; axillis maxime 

 lanatis, lana aculeis adhaarente et mammillis 

 iuvolvenlej areolis tomentosis, tandem nudis; 

 mammillis polyaedris, laete viridibus, mox 

 pallescentibus; aculeis 4 Cruciatim dispositis, 

 angulatis, recurvis, supremo maximo subtorto, 

 omnibus rigidis, carneis." 5500 ft alt Tehuaean. 

 MAMMILLARIA MEIACANTHA E. 

 MAMMILLARIA SEMPERVIVI P DC. 



Near Zimipan, Mexico. 

 MAMMILLARIA TROHARTII Hilldm. 

 MAMMILLARIA UNCINATA Zucc. 



Schumann in aides the following in this 

 group, but as known to us all are not milky. 

 M. CELSIANA Lem. 

 M. PRAEL1I Muehlenpf. 

 M. PYRRHOCEPHALA Scheidw. 

 M. ZEYERIAN A F Haage jr .' 

 M. OENTRICIRRHA Lemaire. 

 M. CROCIDIATA Lemaire 

 M. KaRWINsKIANa Mart. 

 MAMMILLARIA BICOLOR Lehm. 



Near Zimipan,, Mexico. 

 Variety NIVEA KS. 

 MAMMILLARIA CARNEA Zucc. 



Near Zirmpan,, Mexico. 

 MAMMILLARIA ELEGANS DC. 

 MAMMILLARIA LAVOVIRENS S. 

 MAMMILLARIA PIAAGEANA Pf. 

 MAMMILLARIA MELALEUCA Karw. 

 MAMMILLARIA MELANOCENTRA 



Pos. 

 MAMMILLA'RIA MUTABILIS Scheidw. 

 M AIVj MILLARIA NIVOSA Link. 

 MAMMILLARIA OBSCURA Hilldm. 

 MAMMILLARIA PARKINSONII Eh. 

 MAMMILLARIA PERBELLA Hilldm. 



MAMMILLARIA PHYMATOTHELE 



Berg. 

 MAMMILLARIA POLYEDRA Mart. 

 MAMMILLARIA SEITZIANA Mart. 



Near Zimipan, Mexico. 

 MAMMILLARIA SIMPLEX Haw. 



Subgenus BUMAMILLARIA. Plants 

 globose or elongated, with watery juice, 

 and cylmclrical or conical grooveless tu- 

 bercles. I lowers borne usually in a ring 

 near the top of the plant, cup-shaped or 



expanded, as broad or broader than long. 

 Sepals appressed. Stamens and styles 

 shorter than the corolla. 

 MAMMILLARIA ACICULARIS Lem. 

 MAMMILLARIA ACTINOPLEA Eh. 

 MAMMILLARIA ALPINA Mart. 

 MAMMILLARIA AMABILIS Eh. 

 MAMMILLARIA AMBIGUA G. Don. 

 MAMMILLARIA AMOENA Hopff. 

 MAMMILLARIA ANCISTRATA Schelh. 

 MAMMILLARIA ANCISTRIA Walp. 

 MAMMILLARIA ANDREAE Pf. 

 MAMMILLARIA ARGE'NTEA Fenn. 

 MAMMILLARIA ARICTINA Lem. 



MAMMILLARIA ARMILLATA K Br. 



"Sterns somewhat attenuate, reaching 

 3 din in hieght, 4-5 cm, in diameter, usu- 

 ally in clusters of 3-12, from the base, of- 

 ten branching above; tubercles some- 

 what leathery in texture; conical, some- 

 what a/igled; axils setose and sparsely 

 woolly; radial spines 9-15, 7-12 nim long, 

 the inn°r half whitish or grayish; cen- 

 trals 1-4, 10-20 mm long, the lower ones 

 hooked and longer, all, and the outer 

 part of the radials dark brown, yellow- 

 ish or gray; flowers 1-2 cm long, scarcely 

 spreading, flesh color; fruit red, clavate, 

 l%-3: cm long; seeds coria.ceous, dull 

 black, about 1 mm long, oblipuely obo- 

 vate, constricted above the more slen,der 

 basal portion; surface covered with mi- 

 nute, not closely contiguous pits, the in- 

 tervening spaces minutely wrinkled; hi- 

 lum basal, narrow. San Jose del Cabo, 

 Baja California. The name is in allu- 

 sion to the dark bands which encircle the 

 plant, giving it much the appearance of 

 a raccoon's tail." — Katharine Brandegee, 

 Zoe, 5:7 (Je 1900). 

 MAMMILLARIA ATRORUBRA Eh. 



MAMMILLARIA ATROSANGUINEA 



Eh. 



MAMMILLARIA AULACANTHA P DC. 

 MAMMILLARIA BADISPINA F. 

 MAMMILLARIA BARBATA Engelm. 

 MAMMILLARIA BARLOWII R-K. 

 MAMMILLARIA BELLATULA F. 

 MAMMILLARIA BERGENII Eh. 

 MAMMILLARIA BERGII Mig. 

 MAMMILLARIA BIFURCA Dietr. 

 MAMMILLARIA BINOPS Hge. 

 MAMMILLARIA BOCASANA Pos. 



This beautiful plant is covered with the fines 

 tender hair likf spires. 



Near San Luis Potosi, Mexico. 

 MAMMILLARIA CANDIDA Scheidw. 

 MAMMILLARIA CARRETII Rebut. 



Is Pringlei. 



MAMMILLARIA CONICA Haw. 



MAMMILLARIA DECIPIENS Schw. 



L >ose tubercled small growing species with 

 delicate & pretty yellow fls. 



MAMMILLARIA DIQICA K. Brandg. 



M. Goodridgii Engelmann (not Scheer?). 

 small globular species, closely set with brown- 

 ish or white spines, the central one curved 



