214 DR. J. D. HOOKER ON THE PLANTS 
tuberous, and its juice is mixed with butter to give it a brick-red 
colour. 
2. RUMEX OBTUSIFOLIUS, L., var. Steudelii. (R. Steudelianus, Meisn. 
in A. DC. Prodr. xiv. 56. R. Nepalensis, Spreng., Meisn. l. c. 55. 
R. hamatus, Tre., Meisn. l.c. 56.) Foliis lanceolatis, acuminatis 
basi angulatis, calycibus valvulis ecallosis setis utrinque 6-10 hamatis. 
Hab. Cameroons Mountains, alt. 7000 feet. (Fl. Nov., Dec.) 
A very common tropical and intertropical form of the common 
R. obtusifolius, found abundantly in Abyssinia, South Africa, 
throughout the hilly parts of the East Indies, &c. It has very 
many names in systematic works. A. Richard, in his Abyssinian 
Flora, remarks that the leaves vary from attenuate to cordate at 
the base. In our specimen the upper are very acute. 
3. Potyconum NEPALENSE, Meisn., A. DC. Prodr. xiv. 128. 
Hab. Fernando Po, alt. 7500 feet. 
A common Indian and Abyssinian plant. 
40. AMARANTHACE X. 
1, ACHYRANTHES ARGENTEA, L. 
Hab. Cameroons Mountains, alt. 7000 feet. (F1. Dec., Jan.) 
2. CvaATHULA CYLINDRICA, Mogq.-Tand. in A. DC. Prodr. xv. pl. 2, 
var. Schimperiana. C. Schimperiana, Mog. l. c. Foliis lanceolatis 
Hab. Fernando Po, alt. 10,000 feet. Cameroons Mountains, alt. 7000 
feet. (Fl. Dec.-Feb.) 
The original or short-leaved form of this same plant occurs in 
Madagascar, South Africa, and in East tropical Africa (Manganja 
range, Meller in Livingstone's Cape), but not in Abyssinia, where 
the form Schimperiana only occurs. 
41. THYMELEX. 
l. LASIOSIPHON GLAUCUS, Fresen., Meisn. in DC. Prodr. xiv. 593. 
- Hab. Cameroons Mountains, alt. 7000-7500 feet, (Fl. Dec., Jan.) 
Mann's plant has rather longer, narrow lobes to the perianth, 
than an Abyssinian specimen of what we take to be this plant (col- 
lected by Mr. Plowden), of which we have no authentie specimens. 
2. PEDDIEA PARVIFLORA, H. f. (ante, vi. 20). 
Hab. Fernando Po, alt. 5000 feet. (Fl. Nov.) 
42. SANTALACEX. 
1, THESIUM rENUISSIMUM, H. f. (ante, vi. 19). 
Hab. Fernando Po, alt. 9000 feet. Cameroons Mountains, alt. 8000- 
9000 feet. (Fl. Nov.-Jan.) 
