158 COL. GRANT—BOTANY OF THE SPEKE AND GRANT EXPEDITION. 
the structure of the fruit, in which two barren cells are formed, one on each side of the central cell that 
contains the solitary seed. 
[Growing in water of the Nile at Gondokoro, 5° N. lat., and called “ myoongee > (Kis.). Flower-stalk 
18 inches high, now (February) іп seed.—J. А. G.] 
Plate CII: fig. 1. Flower; fig. 2. Carpel; fig. 3. Head of ripe carpels; fig. 4. Fruit- 
NN РотАМЕЖ. | 
1. PoTAMOGETON LUCENS, Linn. ; Kunth, Enum. PI. iii. 132; App. Speke’s Journ. 651. 
Hab. In the Nile, 2° N. lat., Nov. 1862, Col. Grant! A form with lanceolate, acumi- 
nate leaves, like Gay’s type specimens of his P. longifolium from Senegambia. 
[Found on the sides of the Nile at 29 N. lat. » flowering in November.—J. A. G.] 
APONOGETE Ж. 
1. APONOGETON LEPTOSTACHYUM, Ë. Meyer, in Herb. Drége.— Var. minor, Baker. 
Hab. Ganga Thembo, Jan. 24, 1863, Col. Grant ! (Aponogeton no.1, App. Speke's 
Journ. 651.) 4 
This is much smaller than any of the Cape specimens, but agrees with them both in leaf, flower, and . 
general habit. 
[ This 2-inch-high plant is common in the marshes at 5° 45’ S. lat., alt. 4877 feet, and was flowering | 
there in January. Flowers bright purple, generally two upon a stalk.—J. A. G.] 
2. APONOGETON VALLISNERIOIDES, Baker, n. Sp.  Submersum, dense cespitosum ; 
foliis membranaceis, ligulatis, obtusis ; pedunculis fluitantibus, foliis 8-4ріо longioribus, 
floribus in spicam secundam dense congestis, rachi complanata; bracteis floralibus 
evanescentibus, ovario maturo vix longioribus. 
Folia 4-5 poll. longa, 9 lin. lata, ad basin nullo modo angustata. Spica pollicaris, 3 lin. crassa. Ova- 
rium ovoideum, vix I lin. longum, stylo persistente coronatum. Semina in capsulis unicis 6-7 fusiformia. 
Hab. In stagnant water collected on rocks, Ukidi, Nov. 1862, Col. Grant ! ( Аропо- 
geton no. 1, App. Speke’s Journ. 650.) 
This has a spike like that of the Indian 44. monostachyum, Roxb., with leaves, in shape and texture, 
just like those of a small specimen of Vallisneria. Тһе flowers are densely crowded, and the ovaries of 
those of the upper third of the spike do not seem to ripen. The largest number of ovaries to a flower 
that I could make out was four. Up to the present time all the species known in Africa have had a 
forked, and those in India and Australia a simple spike. 
[Gathered at Ukidi, 847 N. lat., in November 1862, where it 
grows entirely submerged, all but the 
flower, in stagnant water which has accumulated on the surfaces of huge masses of igneous rock.— 
LAG] < 
ÅROIDEÆ. 
1. ANCHOMANES Ноокевт, Schott, Prod. Aroid. 134?; App. Speke’s J ourn. 651; 
Bot. Mag. tab. 3718 & 5394 ? 
Hab. Madi, Dec. 15, 1862 (leaf only), Col. Grant ! 
no flowers in December, and the stem was d 
moist shaded slopes.—J. А. G.] 
