Cacti.— Orcutt. 



Genns AKIOCARPIJS Schelrtw. 



Kail Schumann revives this name in 

 his publications, but we prefer to retain 

 the narre Anhalonim. wh ch has been 

 in universal tse. among botanists and 

 horticulturists alike, for more than fifty 

 years. 



A. aselliformis Web, is Anhalonium asel- 



Ifoirr.e 

 A. fissuratus KS, is Anha'onium fissur- 



atum. 

 A Ki tschubeya.' us KS. is Anhalonium 



sulcatum. 

 A, retusus Scheidw, is Anhalonium pris- 



maticum I. em. 

 A. sulcatus KS. is Anhalonium sulcatum 

 A. trgonus KS. is Anthalonium trigonum 

 A. Wibiamsii Voss, is Echinocactus Wil- 



Hamsii. 



Genus ASTROPHYTUM Lemnire. 



A. asterias I^em Cact .50, based on Echiri- 

 ocactus asterias. 



A. capricorne Hort, based on Echinocac- 

 tus capricornis. 



ASTROPHYTUM MYRIOSTIGMA Lem. 



The Bishop's Hood; an odd and beauti- 

 ful spineless plant from Mexico, resem- 

 bling a piece of carved stone. 

 A. prismaticum Lem. Cact 50, error for 



myriostigma. 



CACTUS ALTBRNATUS Coulter. 



"Subg/obcse, 10 cm. in diameter,. simple: 

 tubercles long (15-20 mm) and spreading, 

 with woolly axils: radial spines 3, rigid 

 andi recurved, 5 mm long; central spines 

 3, very stout and much recurved, 20-30 mm 

 long, alternating with the radials; all 

 ashy colored and often twisted: flower 

 and fruit unknown: Type, in Herb. Coul- 

 ter. San Luis Potosi (Eschauzier of 

 1891)."— Coulter Cont U S Nat Hb 3:95 

 CACTUS BRUNNEUS Coulter. 



"Obovate-cylindrical, 3 by 6 cm, simple, 

 tubercles ovate, grooved to the base, 5-6 

 mm long, with woolly axils: radial spines 

 11-15, spreading, rather rigid and brown- 



ish (lighter with age), S-10 mm long; cen- 

 tral spine much larger, £0 mm long, 

 hooked: flower and truit unkncw:i. Type 

 in Herb. Coulter. San Luis Potosi (Es- 

 chauzier of ISLl)."— Coulter Cont U S Nat 

 Hb 3:117. 

 CACTI'S DENSISPINUS Coulter. 



"Globose, 7.5 cm in diameter, simple: 

 tubercles short, with woolly axiis: radia. 

 spines about 25, eiect-spreading, slendei 

 but rigid, yellow (brownish to black with 

 age), unequal. S-li mm long; centra 

 spines (3, a little longer (10-12 mm) and 

 straight, more rigid and darker, black 

 tipped: seeds obovate, rediish-brcwn, ^ 

 mm long. Type in Herb. Coulter. Sar. 

 Luis Potosi (Eschauzier of 1S91). Very 

 easily distinguished by its dense, erec^ 

 spines, which so completels' cover tht, 

 plant as to give it the appearance of a 

 large chestnut burr."— Coulter Cont U fc. 

 Nat Hb 3:96-97. 



Mammillaria castanoides, M. Wegnen 

 M. densispina, and M. fuscata, are prot* 

 ably all identical with this species. 



CACTUS ESCHAUZIERI Coulter. 



"Depressed-globose, 3 cm in diameter, 

 simple: tubercles broader at base. 6-8 mm 

 long, with naked axi s: spines all pubes- 

 cent; radials 15-20, with dusky tips, tht 

 lateral 10-12 mm long, the lower weakei . 

 shorter and curved, the upper shorter, 

 solitary central spine reddish, slendei , 

 somewhat twisted, usually hooked up 

 wards. 15-20 mm long: flowers red (?): 

 fruit reddish (?). ovate, about 10 mrr 

 long: seeds reddish, oblique-obovate, 1.2 

 mm long, pitted, with subventral hilum. 

 Type in Herb. Coulter. San Luis Potos.. 

 (Eschauzier of 1S91)."— Coulter Cont U fc 

 Nat Hb 3:104. 

 CACTUS MACULATUS Coulter. 



cm, simple: t 



"Obovate-cylindrical, 6 by 8 cm. some- 

 what cespitose: tuberc'es ovate, terete, 10 

 mm long, grooved to the base, with na- 

 ked axils: radial spines 10 or 11. straight 

 and spreading, rigid, bLackish (becomine 

 ashy with age), black-tipped. 12 mm lone: 

 central spine large, more or less spotted, 

 erect, 25-35 mm long: flower 13 mm long, 

 pinkish: fruit unknown. Type in Herb. 

 Coulter, San Luis Potosi (Eschauzier of 

 1891)."— Coulter Cont U S Nat Hb 3:117. 

 CACTUS PRINGLEI Coulter. 



"Globose (?), 5 cm in diameter: tuber 

 cles short-conical, about 6 rnm long, witii 

 very woolly axils: radial spines 18-20, se 

 taceous-bristly and radiant, 5-8 mm long, 

 central spines 5-7 (usually 6), stout ana 

 horny, more or less recurved, spreading 

 20-25 mm long; all straw-colored, but the 

 centrals darker: flowers deep red (dark 

 er, even brownish outside), S-10 mm long: 

 fruit unknown. Type, Pringle of 1891 i.i 

 Herb. Gray."— Coulter, Oont U S Nat Hb 

 3:109. 



Genus OEPHALOCERUS Pfeiffer. 



C. CHRYSOMALLUS KS. 



Erect, branching like a candelabra, 10-15 

 feet high .stems 3-6 inches in diameter; 



