IV. ARACHNOIDEÆ.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| acanthophlégma Lehm. | lance-sp. | stm. glob. | sp. ext. wh. cent. 4 apex. re. | .. | ...... | 1835 D.S.. |
| bícolor Lehm. | two-col. | stm. sub-glob. | sp. ext. wh. cent. 2li. br. | .. | ...... | —— D.S.S.. |
| díscolor Haw. | discoloured | stm. glob. | sp. ext. wh. cent. 6-8 bk. br. | .. | S. Am. | 1820 D.S.. |
| vétula Mart. | oldish | stm. obov. | sp. ext. wh. cent. 2-4 y. br. | li. sc. | ...... | 1835 D.S.. |
| supertéxta Mart. | cobweb | stm. glob. | sp. ext. wh. cent. 2-3 y. br. | .. | ...... | 1836 D.S.. |
| intertéxta | interwoven | stm. glob. | sp. ext. wh. cent. 1-2 wh. | .. | ...... | —— D.S.. |
| geminispína Haw. | two-spined | stm. cyl. | sp. ext. wh. cent. 2. elon. | re | Mexico | —— D.S.. |
| pusílla DC. | dwarf | stm. subrot. | sp. ext. wh. cent. wh. ye. | .. | S. Am. | 1820 D.S.. |
| stelláris Haw. |
V. PAUCISPINÆ.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| anguláris Otto. | angular. | stm. glob.-ob | sp. 4-5. cent. 1 el. re-ap. bk. | .. | ...... | 1835 D.S.. |
| polyédra Mart. | many-based | stm. glob. | sp. 6-8 wh. apex re. | .. | ...... | 1836 D.S.. |
| magnimámma Haw. | la. teated | stm. cyl. glau. | sp. 3-5 wh. apex bk. | .. | ...... | 1823 D.S.. |
| Zuccariniana Mart. | Zuccarini's | stm. glob. | sp. 2-elong br. ye. jun. wh. pu. | .. | ...... | 1835 D.S.. |
| Karwinskii Zucc. | Karwinsk's | stm. glob. glau. | sp. 6. wh. ap. bk. | .. | ...... | 1836 D.S.. |
| subpolyédra Salm. | sub many-ba. | stm. sub. cyl. | sp. 4. br. bk. | li. sc. gr. | ...... | —— D.S.. |
| cirrhífera Mart. | tend.-bear | stm. glob. | sp. 3-5 wh. apex re. bk. | .. | ...... | 1835 D.S.. |
| ....spinis fuscís | spined | stm. glob. | sp. 3-5. ye. br. | .. | ...... | —— D.S.. |
| quadrispína Mart. | four-spined | stm. sub. cyl. | sp. 4. dk. br. apex bk. | sc. | ...... | —— D.S.. |
| Seitziana Mart. | Seitz's | stm. obov. | sp. 6. wh. pk. apex re. | .. | ...... | —— D.S.. |
| columnáris Mart. | col.-shaped | stm. sub-cyl. | sp. 6. li. br. | .. | ...... | —— D.S.. |
| pycnacántha Mart. | close-spined | stm. cyl. | sp. 6. ye. apex bk. | .. | ...... | —— D.S.. |
| loricáta Mart. | harnessed | stm. cyl. | sp. 4-6 ye. br. | .. | ...... | —— D.S.. |
| polythéle Mart. | many-teat. | stm. glob. | sp. 6-7 ye. br. | .. | ...... | —— D.S.. |
| cárnea Zucc. | flesh-col. | stm. cyl. | sp. 7-8 ye. apex pk. | car. | ...... | —— D.S.. |
| longimámma DC. | long-teated | stm. cyl. glau. | sp. ext. 6-7.cent. 1. elong | .. | ...... | —— D.S.. |
| macrothéle Mart. | large-teat. | stm. cyl. t. elo. | sp. 6. wh. y. apex br. | .. | ...... | 1836 D.S.. |
| Lehmanni Ott. | Lehm. teats. | ovat elong. | wh. apex bk. | .. | ...... | —— D.S.. |
| sphaceláta Mart. | finger-sh. | stm. cyl. | sp. 10-12 wh. apex red | .. | ...... | —— D.S.. |
VI. STELLISPINÆ.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| cæspitósa Salm. | tufted | stm. cyl. | sp. den. ye. cent. 2 elong | ye. | S. Am. | 1827 D.S.. |
| densa Ott. | ||||||
| stella-auráta M. | gold-star | stm. cyl. | sp. stel. ye. ap. br. cent. o. | ye. | ...... | 1835 D.S.. |
| ténuis | slender | stm. cyl. | sp. li. re. cent. 1. elong. br. | ye. | ...... | —— D.S.. |
| elongáta DC. | elongated | stm. cyl. | sp. stellate ye. apex li. br. | .. | ...... | .... D.S.. |
VII. GLOCHIDATÆ.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| criníta DC. | hairy teats | ovat. elong | sp. centr. 3 ye. br. hooked | wh. ye. | ...... | .... D.S.. |
| ancistroides Lehm. glochidata Mart. | ||||||
| rubra | red-fld. | ...... | .. .. .. .. | re. | ...... | .... D.S.. |
| Wildiána Ott. | Wild's | teats cyl. | sp. 3 ye. br. apex br. | .. | ...... | .... D.S.. |
MELOCA'CTUS. MELOCA'CTUS. Cal. superior, 6-cleft, coloured. Cor. of 6 petals, inserted in calyx. Stamens numerous. Style 1; stigma 5-cleft. Berry of 1 cell. Seed small angular. Flowers expanding amongst the tomentum on the apex of the plant.
| Systematic Name. | English Name. | Form of Stems, &c. | No. and Colour of Spines. | Col. of Flower. | Native Country. | Year of Introduc. |
| amóenus Hffsg. | pleasant | ribs 10-12. | sp. 8 recurv. dk. br. | li. sc. | ...... | 1835 D.S.. |
| commùnis Ott. | common | ribs-erect 12. | sp. 12-ye. br. | re. | W. Indies | 1688 D.S.. |
| viridis Ott. | green | ...... | .. .. .. .. | .. | ..... | 1836 D.S.. |
| Grengélii | Grengel's | ribs 10-12. | sp. 8-10 ye. | .. | S. Th. Is. | —— D.S.. |
| meonacánthus Lk. | sm.-spined | ribs 15-acute | sp. 9-ye. br. | .. | Jamaica | 1835 D.S.. |
| macracánthus Salm | large-sp. | ribs 12-14. | sp. 9-ye. apex br. | .. | S. Domingo | 1820 D.S.. |
| pyramidális Ott. | pyramidal | ribs 14-17. | sp. 11. elong br. re. | .. | Curaçao | 1824 D.S.. |
| spinis rubris | red-spined | .... | .. .. .. .. | .. | ...... | .... D.S.. |
| Salmiánus Lk. Ott. | Salm's | ribs 15. | sp. ext. 10. c. 3. elon. y. re. | .. | ...... | 1835 D.S.. |
| *octogónus | eight-ang. | ribs 8. remote | sp. 8-10 br. ye. | .. | Mexico | 1834 D.S.. |
| *excavátus | hol.-crown. | 13-ang. | sp. ext. 7-8 cent. 1. re. ye. | .. | ——— | —— D.S.. |