848 LXX VIII. CACTEJE. [.Echinocactee. 
ii. 309; v. 812: Ann. v. 88. AxnHaLoNIUM, Lemaire, Cact. Gen. Nov. et Sp. 1. ARIOCARPUS, 
Scheidwo. in Bull. Acad. Bruz. v. (1838) 491, cum ic. 
3. Pelecyphora, Ehrenb. in Bot. Zeit. 1843, 737.—Flores ignoti.—Caulis humilis, cla- 
vatus, demum ramosus, tubereulis obtectus. "Tubereula spiraliter confertissima, axillis 
junioribus lanigeris, ima basi rhombeo-teretiuseula, tum excavato-compressa, apice sub- 
dilatato-obtusa, pulvillo v. seutello cartilagineo elliptico plano instrueta, sulco longitudi- 
nali exarata, et ad peripheriam fimbrillis eartilagineis numerosis albis serrulata. Ovarium 
immersum. Semina reniformia. : 
Species 1, Mexici incola.—Genus a nobis non visum. Flores dicuntur majusculi rosei. Labouref, 
Monogr. Cact. 148 (subgen.). | Walp. Rep. v. 822. 
4. Leuchtenbergia, Z/ook. Dot. Mag. t. 4393.—Calyeis tubus elongatus, cylindricus ; 
lobi numerosi, oo-seriali, exteriores squamseformes, interiores lineares patentes. Petala 
sub-2.seriata, ealyeis lobis interioribus consimilia. Stamina oo, filamentis tubo calycis 
longe adnatis conniventibus faucem claudentibus. Ovarium immersum stylus erassus, 
eolumnaris, stigmatis radiis oo. Bacca ...—OCaulis carnosus, basi induratus, clavatus, 
tuberculatus ; tubereuli elongati, attenuati, 3-quetri, truncati, pulvilligeri, pulvillis .8etis 
elongatis glumaceis instructis. Flores magni, speciosi ab apicibus tuberculorum juniorum 
oriundi. 
Species 1, Mexicana. Walp. Ana. ii. 682.— Flores axillares ex Hook. in Bot. Mag., sed alabastrà 
certe in tuberculos exacte terminalia fide Labouret, Monog. Cact. 162. Flores paulo infra apicem 
tuberculi oriuntur, ex Engelmanio Caet. U. S. et Mex. Bound. Surv. 74, qui dubitanter refert 
: Leuchtenbergiam ad sectionem Mamillarie v. Anhalonii. 
5. Eichinocactus, Link et Otto in Verhandl. Preiss. Gartenb. Verein, ii. 420. t. 13 ad 
20, 22 ad 24, 26, 27.—Calycis tubus ultra ovarium productus, brevis v. elongatus, squa- 
mosus ; lobi oc-seriati, exteriores squamformes, interiores elongati, patentes. Petala co- 
seriata, lobis interioribus ealycis consimilia. Stamina oo, filamentis tubo calycis adnatis. 
Ovarium squamosum v. leve, exsertum ; stylus columnaris, stamina vix superans, stig- 
matis radiis oc, brevibus v. elongatis. Bacca calycis lobis persistentibus squamata v. 
levis, ssepius pulvillis lanatis setigerisque instructa v. glabra. Semina subreniformia, 
levia v. punetulata, sepe albuminosa; cotyledones minute, eonnate, acute v. obtuse.— 
Caulis earnosus, globosus oblongus v. cylindricüs, costatus v. tuberculis distinctis verti- 
caliter v. spiraliter dispositis instructus, costis tuberculisve pulvillis lanatis aculeisve 
ornatis. Flores in pulvillos apiees versus tuberculorum siti, szepe magni, speciosi, rarius 
e cephalio spurio caulem terminante oriundi. 
. Species ad 200 descriptee, sed verisimiliter inordinate multiplicate. — JPalp..Rep. ii. 273, 309, 936 ; 
v.818: 4n. i. 832, 974; ii. 681; iii. 895; v. 38. Bot. Mag. passim. Bot. Reg. 1707, 1717, 
1839, 13, 42; 1839, 4. 24. DC. Rev. Cact. t. 7 ad 10; Mem. Cat. t. 10, 11. Engelm. Cact. U. S. 
et Mez. Bound. Surv.t. 17 ad 35 et t. 14.  Cact. eni Exped.t.1,2,9.  Pfeiff. et Otto, Abbild. 
und Beschr. Caet. i. et ii. passim. 
Mazacocanrvs, Saim- Dyck, Cact. 24; Walp. Ann. ii. 681, constat ex speciebus Echinocacti bacca 
levi esquamata.— Genus ab auctoribus recentioribus non ROMDUME E. acutispina, Zook. Bot. Mag. 
t. 8569. Lehm. in Nov. Act. Nat. Cur. xvi. £. 13. 
GrwunocaLrcIuM, Pfeiff. Catal. Hort. Schel. in Pfeiff. et Otto, Abbild. und Beschr. Cact. ii. t. 12, 
includit species 2, ad Echinocactum relatas a Salm-Dyckio. 
AsrgOoPuvTUM, Lemaire, Caet. Gen. Nov. et Sp. 3, qure Echinocactus myriostigma, Salm-Dyck 
(Bot. Mag. t. 4177), ab Echinocacto nullo modo differt. 
6. Discocactus, Pfeiff. in Nov. Act. Nat. Cur. xix. 117. £. 15.—Calycis tubus ultra 
ovarium productus, gracilis, elongatus, basi nudus, glaberrimus ; lobi co-seriati, exteriores 
colorati reflexi, interiores longiores. Petala sub-2-seriata, patentia, interiora minora. 
Stamina oc, filamentis tubo calycis adnatis, interioribus longioribus faucem elaudentibus ; 
anthere parve. Ovarium emersum, leve, esquamosum; stylus filiformis, staminibus 
brevior, stigmatis radiis 5. Bacea oblonga, levis, perianthio emarcido coronata. Semina 
...—Üaulis depressus v. placentiformis, costatus, costis paueis, basi planus, apice capi- 
