ECHiNOCACTus. CACTEAE. 311 



subcompressis crenalis; sinubus profundis acutis; areolis conferlis, infra coslae 

 crenas positis, juniorib. albo-velutinis, landem vix tomenlosis; aculeis exteriorib. 

 6-8 divergenlib., cenlralib. 3-4 majorib. , omnib. reclis rigidis corneis. — Cactus 

 erinaceus Haw. Suppl. p. 74. — Crescil in Brasilia. 



13. E. PARVISPIMS DC. Prodr. III. 463. - Pfeiff. I. c. — Subglobosus, apice um- 

 bilicatus: coslis 15 compressis; aculeis parvis albis, apice fulvis, e tomento al- 

 bido, uno centrali reclo, radianlib. 6-8 subrecurvulis. — Cactus parvispinus 

 Haw. Suppl. p. 73. — America calida, India occidenlalis. 



14. E. TEPHRACANTHUS Lk. et Olto, Yerhndlngn. d. Gartenbver. f. Pr. III. 422. 

 t. 14. f. 2. — Pfeiff. I. c. 53. f — Irregulariter columnaris 17-anguIaris laele vi- 

 rens: vertice plano lanuginoso; costis compressis crenatis; areolis approximatis, 

 juniorib. albo-velulinis; aculeis 6-10 irregulariter radiantib. gracilib. albis, cen- 

 trali nullo. — Crescit in Brasiliae provincia Rio grande. 



15. E. INTRICATUS Lk. et Otto, Verhndlngn. d. Gartenbver. III. 428. t. 24. — Pfeitf. 

 1. c. t — Caule ovali viridi; costis 20 obtusatis; spinis 4 centralib. majorib. erec- 

 lis, reliquis 14-16 patenlib., extimis divaricalis. — In Montevideo. 



16. E. ORTHOCANTHUS Lk. et Olto 1. c. 427. t. 18. — Pfeiff. 1. c. — Caule glo- 

 boso glaucescenle; costis 18 obtusalis; spinis 7, centrali majore valida recla, re- 

 liquis patentibus. — In Montevideo. 



17. E. OLIGACANTHUS Mart. mss. ex Pfeiff. I. c. — Globosus 12-anguIaris: costis 

 subcompressis crenatis; areolis magnis subnudis; aculeis plerumq. 5 crassis cur- 

 vatulis albidis, infimis 2 minimis, summo maximo. — Crescit in Mexico. 



18. E. INGENS Zucc. mss. in Pfeiff. I. c. 54. f — Globosus v. oblongus, basi lignea 

 attenuatus glaucescens, ad cristas purpurascens, 8-anguIaris: vertice lanatissimo; 

 sinubus latis acutis; costis obtusis tuberculatis; areolis magnis remotis, lana co- 

 piosissima flavescentc el aculeis exteriorib. 8, centrali 1, brunneis reclis rigidis 

 instructis. — Melocactus ingens Karw. — Crescit in Mexico. 



19. E. PRUINOSUS Otto mss. ex Pfeiff. I. c. — Subglobosus 5-6-anguIaris cinereus: 

 sinubus juniorib. acutis, mox omnino planis; costis subacuatis repandis; areolis 

 subremotis cinereis convexis; aculeis exteriorib. 4-5, centrali 1 vix longiore, 

 omnib. rectis rigidis, nascenlib. flavis, apice brunneis, tandem nigris. — Cereus 

 roridus Hort. Berol. — Crescit in Mexico. 



* * * Costis acuatis. 



20. E. ACUATUS Lk. et Otlo mss. ex Pfeitf. 1. c. — Subglobosus obscure viridis 

 13-angularis: vertice depresso; sinubus acutis; costis compresso-acuatis, deor- 

 sum crenulatis; areolis haud prominentib., juniorib. lanalis; aculeis exteriorib. 

 10 subradiantib. flavidis, centralib. 4 rigidiorib. longiorib. luleis, supremo brevis- 

 simo. (Planta seminalis PA poll. alta, 2'/2 diam.) — In Montevideo. 



21. E. CORYNODES Otto mss. ex Pfeiff. 1. c. 55. f — Depresso-globosus, basi at- 

 tenualus, obscure viridis, 16-anguIaris: vertice impresso; sinubus angustis aculis; 

 costis acualis crenatis; areolis iramersis, juniorib. albis villosissimis, tandem nu- 

 dis ; aculeis exteriorib. 9 patentib., nascentib. rubris, dein fuscescentib., centrali 1 

 ereclo subulato brunneo, reliquos non superante, omnibus rectis rigidis. — E. 

 acutangulus Zucc. — E. rosaceus, Sellowianus Hort. — 3Iontevideo, 3Iexico. 



22. E. SELLOWIANUS Link et Otto, Vhdl. d. Gartenbver. f. Pr. IIL 425. t. 22. — 

 Pfeiff. I. c. 55. t — Pfeitf. el Otto, Abhdl. u. Beschrbg. bluhend. Cacl. t. l! t - 

 Depresso-globosus obscure viridis: vertice umbilicato; costis 15-20 aculis vix 

 crenulatis; areolis remotis albo-lomentosis; aculeis 5-7 flavidis rigidis rectiuscu- 

 lis palentib., in planta juniore centrali 1, tandem nullo. — (Planlae seminales in 

 horto Berolinensi ortae, 2'/- poll. diam., 1% poll. alt.). — Montevideo. 



23. E. SESSILIFLORUS Pfeiff. I. c. 56. t — Depresso-globosus obscure viridis, ver- 

 tice umbilicatus: sinubus aculis; costis 21 verticalibus acutis crenatis, circa areo- 

 las inflatis; areolis remotiusculis velutinis albis; aculeis brevib. rigidis brunneis 

 4 decussatis, vel 5, quorum 2 supremi minores. — Crescit ? 



24. E. CORNIGERUS DC. Revue p. 36. t. 7. — Memoire p. 17. t. 10. — Pfeiff. 1. c. 

 56. t — Depresso-globosus glaucescens 21-angularis; sinubus aculis; costis com- 



