| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| multángularis Ha. | many-an. | stm. cycl. | sp. dense ye. br. | .. | S. Am. | 1815 D.S.. |
| spinis albis | whitespined | ...... | —— D.S.S. | |||
| myriophyllus | myriad-led. | stm. cyl. spotted | sp. ye. br. | .. | ...... | —— D.S.. |
| strigósus Gill. | strigose | stm. cyl. 14-a. n. s. | sp. wh. br. | .. | ...... | —— D.S.. |
| myriacánthus | myriad-sp. | stm. cy. 14-15-a. | sp. 1½-inch long br. | .. | Chili | —— D.S.. |
| spinósus Hitch. | spiny | st. erect. c. 14-16 a. | sp. ye. br. | .. | ...... | —— D.S.. |
| *Bonariensis | Bu. Ayres | st. erect. 11-14-a. | sp. ye. red at base | .. | B. Ayr. | 1836 D.S.. |
| *tenuátus | slender-sp. | stm. erect 18-ang. | sp. ext. 7. re. ye. br. c. 1 | .. | ...... | —— D.S.. |
XII. FLAGELLIFORMES.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| flagellifórmis Haw. | rod-shaped | 10-an. tuberc-c. | sp. br. ye. | pk. | ...... | 1835 D.S.. |
| minor | smaller | ...... | —— D.S.S. | |||
| *costatus | ribbed | 8-9 ang. | sp. slender white | .. | Peru | 1690 D.S.. |
| flagrifórmis Zucc. | whip-sh. | 8-ang. tuburc. not so crowded as in last | ...... | ...... | 1834 D.S.. | |
| Martiánus | Martins's | 10-ang. tuberc. | sp. wh. | pu. | ...... | 1835 D.S.. |
| leptóphis DC. | thin serpent | 6-7-an. t. remote | sp. wh. & ye. | .. | ...... | —— D.S.. |
| Smithïi | Smith's | tuberc. none | sp. br. ye. | .. | ...... | —— D.S.. |
| tenuissimus | very slender | 4-5 ang. | sp. wh. slen. hair-like | .. | ...... | —— D.S.. |
XIII. RADICANTES.
Caule 3-7-angulari articulato.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| rádicans DC. | rooting | 4-5 ang. | sp. short dk. br. | .. | B. Ay. | 1836 D.S.. |
| húmilis | dwarf | 4-5 ang. | sp. wh. slender | .. | S. Am. | 1827 D.S.. |
| grandiflòrus Haw. | long-fld. | 6-7 ang. | sp. wh. ye. | ye. wh. | Jamai. | 1700 D.S.. |
| myriacaulon Mart. | myriad-st. | 4-ang. | ...... | 1835 D.S.. | ||
| nycticalius Lk. | night-beau. | 4-5 ang. | sp. erect slender wh. | .. | ...... | 1834 D.S.. |
| Schrankii Zun. | Schranks | 4-5 ang. | sp. 6-8 sh. dk. br. | .. | ...... | 1835 D.S.. |
| *arcuátus | arched | 3-4 ang. sinu. | *sp. 4 dk. br. | wh. | ...... | —— D.S.. |
| Napoleónis Salm. | Napoleon's | 3-4 ang. | sp. 3 remote sh. br. | gr. wh. | ...... | 1834 D.S.. |
| triangulàris L. | three-ang. | 3-ang. | Mexico | 1690 D.S.. | ||
| pictas | variegated | ...... | —— D.S.S. | |||
| Lanceanus | Lance's | 3-ang. | sp. ye. wh. & br. | sc. | ...... | 1834 D.S.. |
| speciosissimus | shewy | 3-4 ang. | sp. cent. 2-3 ye. erect | .. | Mexico | 1816 D.S.. |
| prismáticus Salm. | prismatic | 3-4 ang. | sp. dark br. | .. | ...... | 1826 D.S.. |
| trípterus Salm. | three-wing. | 3-ang. | sp. dk. br. | .. | ...... | 1827 D.S.. |
| tríqueter Haw. | three-sided | 3-ang. | sp. dk. br. | .. | S. Am. | 1794 D.S.. |
| exténsus Salm. | extended | 3-ang. | sp. ext. w. sl. c. 3-4 w. ye. | .. | ...... | 1826 D.S.. |
| coccineus Salm. | scarlet | 3-4 ang. | sp. ext. wh. sl. cent. 4 ye. | sc. | Brazil | 1828 D.S.. |
| setáceus Salm. | bristly | 3-ang. | sp. ext. w. slen. cent. 1-3 | .. | ...... | —— D.S.. |
| setósus | setose | 3-ang. | sp. br. setac. wh. | .. | ...... | 1835 D.S.. |
| ramósus Karw. | branching | 3-ang. | sp. br. ye. remote | .. | ...... | 1836 D.S.. |
| myosúrus Salm. | mouse-tail | 3-dented-ang. | wool-white | .. | ...... | 1828 D.S.. |
| quadrangularis Ha. | quadran. | 3-4 ang. | sp. 5-7 | .. | Amer. | 1809 D.S.. |
XIV. ALATI.
Epiphyllum Haw.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| Ackermánni Haw. | Ackerman's | br. elon. compr. serr. cyl. at base | sc. | Mexico | 1830 D.S.. | |
| alátus | winged | br. obl. compr. crenate | wh. gr. | Jama. | 1818 D.S.. | |
| coccíneus | scarlet | br. compr. glau. crenate | sc. | Brazil | 1828 D.S.. | |
| crispátus Haw. | curled | br. obl. compr. cren. invol. | pu. | Mexico | 1826 D.S.. | |
| Hookéri | Sir W. Hooker's | br. comp. lin. lanc. sinuate | wh. | S. Am. | —— D.S.. | |
| phyllanthoídes DC. | Phyllanthus-like | br. comp. sinuat. cyl. at base | pk. | Mexico | 1816 D.S.. |
HYBRIDS.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| aurantíacus | orange-coloured | .. | .. | or. | ...... | —— D.S.. |
| ignéscens | fiery | .. | .. | sc. | ...... | —— D.S.. |
| Colvilli | Colvill's | .. | .. | |||
| Jenkinsóni | Jenkinson's | .. | .. | sc. | ...... | —— D.S.. |
| Kiardi | Kiard's | .. | .. | sc. | ...... | —— D.S.. |
| Lóthi | Loth's | .. | .. | sc. | ...... | —— D.S.. |
| Mackoyi | Mackoy's | .. | .. | sc. | ...... | —— D.S.. |
| oxypétalus | sharp-petaled | .. | .. | sc. | ...... | —— D.S.. |
| Guillardieri | Guillardier's | .. | .. | sc. | ...... | —— D.S.. |
| Smíthii | Smith's | .. | .. | sc. | ...... | —— D.S.. |
| Vandésii | Vandes's | .. | .. | sc. | ...... | —— D.S.. |
| rhómbeus Salm. | rhomboid | rhomboid br. elong. comp. sinuated | .. | ...... | 1835 D.S.. | |
| ramulósus Salm. | branching | branching stm. cyl. bran. com. o. lan. | .. | ...... | —— D.S.. | |
| truncátus | truncated | truncated br. com. thin d. n. at apex | sc. | Brazil | 1818 D.S.. | |
| coccineus | scarlet | sc. | ...... | —— D.S.. |
OPU'NTIA. OPU'NTIA. Cal. of many leaves, united to the ovary, the inner sepals petal-like obovate. Stamens shorter than petals. Style cylind. constricted at the base. Stigma many erect thick. Berry ovate, often spiny.