LXXVIII. CACTEAE. 847 
10. RurPsaLIS. Flores parvi. Petala patentia. Caulis teres angulatus v. dilatatus, setis O 
v.filiformibus. Ovarium glaberrimum. Bacca lzvia, pisiformis.— Amer. trop. 
11. NoPArEa. Flores majusculi. Petala erecta. Stamina longe exserta. Caulis crassus, 
articulis planjs, setis O v. apice glochidiatis. Bacca aculeata, majuscula.— 4er. trop. 
12. OpvxNTIA. Flores majusculi. Petala erecto-patentia. Stamina petalis breviora. Caulis 
crassus, articulis compressis v. teretibus, setis apice glochidiatis. Bacca aculeata, majuscula.— 
Amer. calid. et in orb. vet. inquilin. 
' 13. PrRzsK1A. Flores majusculi, sepius panieulsti. Caulis frutescens, ramis cylindricis 
foliosis, aculeis simplieibus. Folia ampla, plana.—24mer. trop. 
Tarsus I. EcniNocACTE X. 
l. Mfeloeactus, Link et Otto in Verhandl. Preuss. Gartenb. Verein, ii. A17. t. 11, 12, 
21, 25.—Calycis tubus cylindrieus, basi ventricosus ; lobi ad 24, parvi, tubo seriatim v. 
Subspiraliter adnati, imbricati. Petala 2-3.seriata, basi in tubum connata, exteriora 
angustiora. Stamina numerosa, tubo calycis oo-seriatim inserta, inclusa, filamentis capil- 
laribus brevibus basi dilatatis ;; anthere oblongm, erectz. Ovarium immersum, leve, 
'ovoideum, apice planum ; stylus filiformis, stigmatis radiis 5-00 ; ovula numerosa, placentis 
co inserta. Bacca demum emersa, lzvis, corolla marcescente superata. Seminaco, nigra, 
rugulosa v. striatula, albumine 0; embryo subglobosus, difformis, germinatione apice 
2-fidus.—Caulis eonoideus v. subglobosus, carnosus, basi planus, 6—cc-costatus, adultus 
capitulo florifero angustiore dense lanuginoso coronatus ; costs verticales, e tubereulis con- 
eretis apice spinigeris, spinis teretibus v. ángulosis. Capitulum e tuberculis exiguis den- 
sissime spiraliter confertis constans, lana'alba obtectum. Flores ex axillis tuberculorum 
evoluti, e£ marginibus eorum leviter adhzrentes, parvi, rosei. 
Species ad 30, Mexici, Brasilise et (perplures) ins. Indis occidentalis incole, paucte Novo-Grana- 
denses. JWalp. Hep. ii. 269, 304 (subgen.). DC. Rev. Cact. t. 6. .Miq. Monog. Melocact. in Nov. 
Act. Nat. Cur. xviii. Suppl. 81. t. 1 ad 11. Bot. Mag. t. 3090, 8691. 
2. Mamillaria, Haworth, Syn. Pl. Succ. E VUA —Calyeis tubus cylindrieus campanulatus 
v. infundibuliformis ; lobi oo-seriati, breves. Petala oo-seriata, latiora, erecto-patentia 
y. reeurva. Stamina oo-seriata, tubo 'ealyeis inserta, filamentis filiformibus. Ovarium 
sepissime immersum, live, ovoideum ; stylus filiformis, elongatus, stigmatis radiis 4-oc. 
Bacca demum  emersa, lzevis, oblonga v. clavata, eorolla marcescente coronata. Semina 
minuta, rarius majuscula, levia rugulosa v. scrobiculata, rarissime verruculosa, albumine 
pareissimo ; cotyledones parvz, connate, lateribus seminis parallelz.— Caules simplices v. 
ezspitosi, globosi v. cylindrici, tuberculati. Tubercula mamilliformia cylindriea v. angu- 
lata, areola tomentosa et aculeigera terminata. Areole florifero axillares v. supra-axillares, 
nud villosz v. setosz, ab aculeiferis penitus v. plus minusve distincts. .Flores ex axillis 
tuberculorum oriundi, ampli v. parvi, sepius in zonam caulem cingentem dispositi. 
Species ad 300 auctóribus descripte, ab hortulanis inordinate multiplicatee, Mexici Amerieseque 
borealis calidee incolw, in Brasilia, ins. Indis occidentalis et Bolivia raro occurrunt. JJÁalp. Rep. ii. 
269, 283, 936 ; v. 809: Ann. i. 330; 1i. 673; iii. 893; v. 33. — Bot. Mag. 3642, 4358, 3647, 3634, 
3972, 3984, 3646, 4060. — Bot. Reg. t. 1523, 1329. DC. Rev. Cact. (.2 ad 5; Mem. Cat. t. ] ad 9. 
Martius in. Nov. Act. Nat. Cur. xvi. (. 17 ad 25. Pfeiff. et Otto, Abbild. nd Beschr, Cact. i. £. 3, 
7], 8, 13, 19, 25, 26 ; ii. 4. 8, 20, 23, 26. 
Genus ab Engeltmanuio i in subgenera 3 divisum : 
1. Eumamillaria; 'Tubereula nunquam sulcata. Flores ex axillis tubereulorum anni prioris 
oriundi. Ovarium plerumque immersum, fructus maturitatem versus emergens. Engelm. Syn. 
Cact. U.S.4. Cact. U. S. et Mez. Bound. Surv. t.1 ad 9. 
2. Coryphanta. Tubercula sulcata. Flores e basi tubereulorum hornotinorum v. e vertice ipso 
eaulis oriundi. Ovarium emersum. Engelm. Syn. Cact. U. 8. 8: Cact, U. S. et Mez. Bound. Surv. 
£: 10, 11. 
9. Anhalomiwm. "ubercula subfoliacea, triangularia, levia v. supra verrucoso-fissurata. Floresex - 
areolis tuberculorum hornotinorum oriundi, in vertice caulis congesti, mediocres; ovarium emersum, 
Semina majuscula, tuberculata. Engelm. Cact. U. S. et Mez. Bound. Surv. 17. t. 16... Walp. Rep. 
