320 



Cadi at Hendoji Vicarage. 



Tribe PHYLLARIOCOTYLEDO^NEiE. 



Genus I. CE^REUS. 



Form columnar, erect or creeping. Surface angled or furrowed, armed with 

 spines. Flowers long and tube-like, produced in the fascicles of spines on 

 the sides of the plant. Berry naked. 



5p 



6 sp 



Sect. I. Columns erect; 

 Subsect. 1. Column robust. 



Jamacciru. 2\ ft. high, and 4 in. in 

 diameter. — Syn. C. glaiicus. 



lae'tus. 3 ft. high, and 4 in. in di- 

 ameter. — Syn. C. formosus; 

 Cactus lae^ta. 



sp. (black spines). 4 ft. high, and 

 .3 in. in diametei'. 



peruvianus. 2 ft. high, and Sg in. 



, diameter, — Syn. C. hexagonus; 



Cactus peruviana ; C. penta- 



gona ; C, hexagona ; C. hepta- 



gona. 



2 monstrosus. 3i ft. high, and 

 IJft. in diameter, branched. — 

 Syn, Cactus monstrosa; C. ab- 

 normis. 



. (brown spines). 2 ft. high, 

 and 2 J in. in diameter. 



geometricans. 2ft. high, and Sin. 

 diam. — Syn. C. aquicaulensis. 



rather -thick. Angles large. 



8 pruinosus. Tin. high, and 4 in. in 



diameter. — Syn, C. roridus ; 

 Echinocactus pruinosa. 



9 marginatus. 1| ft. high, and 3 J in. 



in diameter. — Syn. C. incrus- 

 tatus ; C. cupulatus ; C. Mir- 

 helii. 



10 robustus. 3i ft. high, and 4i in. 



in diameter. 



Subsect. 2, Columns slight. 



11 Forbesii. 9 in. high, and 2 in. 



in diameter. 



12 sp, 4| ft. high, and 2| in. in di- 



ameter. 



13 tetragonus. 2i ft. high, and 2 in. 



in diameter, branched 1 ft. — 

 Syn. C. quadrangularis; Cactus 

 tetragona ; C. pentagona. 



14 virens (whitespines and greenish). 



2 ft. high, and 2 in. in diameter 



Sect. II. Columns tall, erect, and slender. Angles small, 6 — 9. 



15 nigricans. 2 ft. high, and \\ in. 



in diameter. 



16 azureus. 2g ft. high, and \^ in. 



in diameter. 



17 caerulescens. 2 ft. high, and 



If in. in diameter. — Syn. C. 

 ^'thiops, C. Mendory. 



18 repandus. ^\ ft. high, and 2 in. 



in diameter. 



19 hystrix. li ft. high, 2a in. diam. 



Sect. III. Columns erect, short, 



24 multangularis. 2 ft. high, and 



3i in. in diameter. — Syn. 

 Cactus multangularis. 



25 m. 2 nobilis. 1 ft. high, and 3^ in. 



in diameter. 



26 m, 3 spin, fuscis. 9 in, high, and 



2h in. in diameter. 



27 m. 4 spin, albis. 9 in. high, and 



2i in. in diameter. 



28 chiloensis. 2 ft. high, and 4J^ in. 



in diameter. — Syn. C. coquim- 

 banus; C. Quintfero; Echino- 

 cactus pyramidalis ; E. elegans. 



20 crenulatus. 1 ft. high, and l|in, 



diameter. — Syn. Cactus Roy- 

 eni. 



21 sp, (glaucous skin). 2 it. high, 



and 2i in. in diameter. 



22 sp. If ft, high, and 3^ in, in di- 



ameter, 



23 sp, (spines whitish green), 1 ft, 



high, and 2^ in, in diameter. 



and stout. Angles many, 7 — 22, 



29 Djckw. 9 in, high, and 4 in. in 



diameter, 



30 sp, n. (gibbous angles, and mealy 



skin). 



31 sp. nov. (spines acute; angles 



green). 1 ft. high, and 4 in. in 

 diameter. 



32 sp. nov. (spines black and white). 



33 candicans. IJ ft. high, and 7 in. 



diam. — Syn. C. Montezuma?; 

 Echinocactus candicans. 



34 arachndides. 7 in. high, 4J in. 



in diameter. 



