CACTE*. 301 



Sect. 1. PiLOCEREus. — Cttfyx-tuhe shortly produced beyond the ooary. Style exserted. — 

 Stem erect, columnar with vertical ridges : areola; woolly or at length glabrate. 



3. C. Swartzii, Gr. " Stem high, nearly simple, blunt at the woolly summit : ridges 

 10, prominent, bluntish, separated by a ileep sinus: areola lO-S-spinose : spines stout, 

 spreading, interior shorter, those of the stem-summit concealed within the wool ; flowers 

 pale-red." — Cactus peruvianns, Sto. Ois. (exelus. syn. SI. et Linn.). Cereus, Maqf. — Cactus 

 fimbriatus, Desc. {Fl. 6. t. 419), though presenting only 8 ridges, is probably the same, and 

 shows the exserted style of Pilocereus, not mentioned by Swartz. — " Stem 6'-20' high', 3'|-5" 

 thick : spines nearly 1" long ; flowers 2" long : exterior sepals subimbricate." — Hab. Ja- 

 maica (Sw., Macf.), in the diy, southern savannahs. 



4. C. Curtisii, Lk. Oit. " Stem blunt at the summit : ridges 8-10, prominent, ar- 

 gute ; areolae convex, woolly : spines stout, equalling the teool, exterior 8-10, central 4, 

 superior minute ; flowers rosy-variegated : calyx-tube green, naked below."— 5(j<. Mag. t. 

 3125; Pfeiff. Cad. t. 11. — C. Royeni, Hook, {non alior.). — Longest spines nearly 1", 

 flowers 2" long. — Hab. Grenada (Hook)^ 



Sect. 2. EucEKEUS. — Calyx-t-uhe longi produced beyond the ovary. Style nearly as long 

 as the included stamens, 



* Stem erect, columnar. 



5. C. eriophorus, Lk. Oit. Stem high, jointed, tapering at the summit, at length 

 subcylindrical : ridges 8-10, blunt-convex ; areolae devoid of wool, 9-12-spinose ; spines 

 needle-shaped, 8-10 radial spreading, 1-2 central longer; flowers large, nocturnal, white: 

 calyx-tube covered with long wool.- — Pfeiff. Cact. t. 22. — Cactus pernviauus jamaicensis, L. 

 {ex syn. SI. et P. Sr.). Cereus repandus, Macf. (non Haw.). — Stem 20' high : joints 2'-4' 

 distant : spines 5"'-2"', on the calyx-tube 8'" long; flowers infundibular, 9"-6" long. — Hab. 

 Jamaica !, Wullschl., M., in the southern savannahs, Davidson Hills near Falmouth ; [Cuba]. 



6. C. repandus, Maw. " Stem tapering at the summit, subcylindrical : ridges 8-10, 

 depressed, separated by narrow furrows : areolae devoid of wool, 9-10-spinose : spines needle- 

 shaped, short, 7-8 radial, 2 central ; flowers large, white : calyx-tube devoid of wool." — 

 DC. PI. Grass, t. 161 ; Tuss. Fl. 2. t. 33.— Cactus, L. {ex syn. SI.). C. Royeni, DO. 0. 

 peruvianns, Tuss. — The occurrence of this species in Jamaica rests on a wood-specimen pre- 

 served in the Economic Museum of Kew, and upon Sloane's authority, who however does 

 not mention sufficiently the character, but distinguishes this from the preceding by lower 

 growth and a yellow (not red) berry ; both ai'e indeed quite similar in the flower. — Hab. 

 Jamaica, with the preceding {81.). 



** Branches scandent, radicant. 



7. C. triangularis, .Baw. " Branches triquetrous : one sinus nearly flat, two deep: 

 areolae 4-2-spinulose ; spinules very short, inferior longest; flowers large, nocturnal, white." 

 —Desc. Fl. 7. t. 519.— Cactus, L. — " Spinules l"'-2'" long ; flowers, when expanded, 8" 

 diam." — Hab. Jamaica {Macf), common on rocks ; [Mexico]. 



8. C. grandiflorus. Haw. " Branches slightly ?>-T-angular : areolae 5-12-spinulose: 

 spinules short, nearly equalling the wool ; flowers large, nocturnal, white."-rfl«i(!. Fl. 1. t. 

 65. — Cactus, L. — " Spinules 2"'-3"' long ; flowers fragrant, when expanded 6"-8" diam." — 

 Hab. Jamaica {Matf.), on rocks and decayed trees ; Caribbean Islands. 



9. C. flagelliformis, Mill. "Branches cylindrical: tubercles 10-12-seriate, 11-16- 

 spinulose : spinules short, radial 8-12, central somewhat longer, B-4 ; flowers infundibular, 

 crimson."— Tuss. Fl. 2. t. 28 ; Desc. Fl. 1. 1. 67.— Cactus, L.—" Spinules 2"'-3"', flowers 

 2J"-3" long."— Hab. Jamaica {SI., Sw.), on trees, along the coast; [trop. America]. 



4. RHIPSALIS, G. 



Calyx-tube short, equalling the ovary, naked : limb small, expanded. Berry crowned with 

 the marcescent flower. Seeds obovoid : embryo curved, with minute cotyledons ; albumen 

 scanty. — Stem and branches cylindrical or foliaceous-winged, unarmed; flowsrs in the 

 crenatures of the foliaceous, or lateral on the cylindrical braiiches. 



