142 COL. GRANT—BOTANY ОЕ THE SPEKE AND GRANT EXPEDITION. 
Very like R. obtusifolius, var. Steudelii, Hk. f., Linn. Journ. уп. 214, excepting in the presence of a pro- 
minent callus, which, however, is sometimes present in R. nepalensis, Spreng., and R. hamatus, Trev., 
both of which are reduced as varieties of В. obtusifolius, L., by Dr. Hooker (2. с.) 
Hab. Found on the east-coast range, at an altitude of 4700 feet, in December, at 62° 
S. lat., near moisture, and growing 9 feet high, Col. Grant ! 
4. RUMEX MADERENSIS, Lowe, Nov. Flor. Mader. 12; DC. Prod. xiv. 67. Frutes- 
cens; foliis ovato- v. oblongo-ellipticis, acutis, basi hastatis, glabris; paniculis terminali- 
bus, amplis, subaphyllis, multifloris ; floribus hermaphroditis (v. polygamis ?) (valvis sub- 
orbicularibus membranaceis, venosis, ecallosis). App. Speke's Journ. 645. 
Frutex 1-2-pedalis vel in speciminibus nostris 10—12-pedalis; caulis teres, striatus, striis alternis vali- 
dioribus, glaber. Folia 11-2 poll. longa, acuta v. obtusa, apiculata; petiolus 2-13 poll. longus. Pedicelli 
graciles, flori subæquilongi. (Valve I poll. diam.) 
Hab. Mininga, 4° 18' 8. lat., Col. Grant ! 
The above description applies to Col. Grant’s specimen, excepting as to the fruit-valves (figs. 4 and 5 
of the Plate), which I have seen matured only in Madeiran specimens. 
[10 feet high, in long straight stems; growing in hedges with Euphorbias at Mininga, 4° 18! S. lat. 
The leaves are generally eaten away ; they taste bitter.—J. A. б.) u 
Plate XC. fig. 1. Flower before, and fig. 2. after expansion ; fig. 3. Pistil; fig. 4. Por- 
tion of fruiting panicle of a Madeiran specimen; fig. 5. Single fruit and perianth of 
same. 
5. POLYGONUM BARBATUM, L.; DC. Prod. xiv. 104; App. Speke’s Journ. 645. 
Наб. Bast-coast range, Nov. 1860, Col. Grant! A wide-spread species in the Old- 
World tropics. 
[Found by a solitary spring of water on the east-coast range. In flower November.—J. А. G.] 
6. Рогувохом TOMENTOSUM, W.; DC. Prod. xiv. 124; App. Speke’s Journ. 645. 
Hab. Upper Nile, Col.Grant! Also in Tropical Asia. 
[Found on the Nile at 2? N., when in flower, during November; again above the Sobat river, at 
8° N. lat., in March, when it was not in flower.—J. А. G.J 
The above two species of Polygonum I have left as.determined for the Speke Appendix, not seeing what 
better to do with them. 
NYCTAGINEX. 
1. ВоввнлАУТА GRANDIFLORA, Å. Rich. Fl. Abyss. ii. 209; App. Speke's Journ. 645. 
--В. dichotoma, hb. Schimp. Abyss. 1719. 
Hab. East-coast range, alt. 4700 feet, Col. Grant ! 
[A straggling plant, with blue flowers; found in November on the east-coast range at an altitude of 
4700 feet, 62? S. lat.—J. A. G.] | 
2. BOERHAAVIA DIFFUSA, L., var.; DC. Prod. xiii. pt. 2, 452. 
Hab. Unyoro, July 1862 (Boerhaavia no. 1; App. Speke's Journ. 645), Col. Grant ! 
[Collected in July at 2? М. lat., near cultivation. The root is of the thickness of the finger, carrot-shaped. 
and 5 inches long ; the stem is at right angles to the root; and the leafy portion of it grows flat on the 
ground, while the flowering branches are erect and опе foot high. Stem round, slightly hairy, thickly 
jointed, and purple. Flowers diminutive, pink, and growing on the top of what becomes the five-sided 
seed-vessel. The roots are eaten in famines.—J. A, G.] 
