WEST AMERICAN SCIEN’ I3T. 5 
Rio Grande, between Tampico and Real del Monte, Mexico.”—Ungclmann \ 
in Trans. Acad. St. Louis, ii. 202. 
M. czSPIToOSA Gray, Struct. Bot. 421 f. 838. 
Original description not seen. 
= Missouriensis czespitosa fide Watson, Bibliographical In lex, 493, 404. 
M. CALCARATA Engelmann. 
Original description: —“M. sulcata, n. sp.: czespitosa; tuberculis ovato- 
oblongis sulco subinde apicem versus prolifero superne exaratis apice spin- 
iferis; spinis rectis radiantibus cinereis e tomento albido deciluo (in plan- 
tis adultis spina centralis subrecurva majore) ortis; floribus centralibus 
fasciculatis e tomento ortis glaberrimis, tubo brevi; sepalis lanceolatis acu- 
minatis viridi-flavescentibus margine integerrimis; petalis longioribus lan- 
ceolatis apicem versus ciliato crosis cuspidatis sordide flavis ad basin intus 
filamentisque brevibus rubicundis; stylo supra stamina exserto; stigmati- 
7-10 flavis; baccis oblongis virescentibus—With [M. similis, &e.]. 
Flowers opening for 2 or 3 days, in direct sunshine, 2’ or more in diameter, 
On account of the central flowers, this should form, with M vivipara, a dis- 
tinct section. From that species it abundantly differs, not only in the 
color of the flower and the spines, but in the entire and smoot sepals, 
denticulate petals, etc.’—Engelmann, Boston Jour. Nat. Hist. v. 246. 1845. 
< “Near Pawnee ee ue in Emory’s Recon. 408. : 
“M. CALCARATA. . sulcata,"Engelm. Pl. Lindh. 1c. non Pfeiffer. 
Near M. scoly moides, laa but sufficiently distinct, according to Prince 
alm.—Rocky and hard, clayey soil, on the Upper Guadaloupe. My sper- 
imens from there are mostly densely caespitose; hein in 13 oblique. 
rows; proliferous groove producing the buds always near its upper end. 
Flowers 2’ long and 2-214’ in diameter; sepals (or rather outer firmer peri- 
gonial leaves) 20-35; petals (inner more delicate petaloid perigonial leaves) 
. 30-35; yellow (dirty yellow only when fading), reddish at the base.”— —B#n- 
gelmann, Boston Jour. Nat. Hist. vi. 195-6 1850. 
Engelmann, tial Am. Acad, iii. 267; Cact. Mexican B. 14, t: 74, f. 1 
Salm, Cact. HD. ed. 2, 131. 
Labouret, ees Cact. 142: 
Jalpers Ann. v 
Watson, Bibliographical Index, 402. é j 
Coulter, Contr, U. S, Nat. Herb. ii. 128. oe 
Mamillaria Saniora Mhipfdt. AGZ. 1848, 19:—“Ovata, visti 
mamnillis adpressis et spiraliter dispositis, conicis, basi depressis 7-9/”" lon- 
gis, supra sulcatis, sulcis junioribus lanatis,:senioribus nudis, exillis albo 
lanatis, eglandulosis; arcolis junioribus albo-lanatis, senior ieribus nudis. 
Aculeis adiantibus 7-9 griseo-albis, centrali r robustiore griseo-fusco."— 
xas, R 
Mnipfat, Pes or _ 597- 
__. Sehee 8,435. 1849. 
‘ teed strobiliformis: Scheer, nor eo 
