300 LABIAT& (Brown), [Lboza. 
Leaves broadly rounded (not notched) at the base ; 
tertiary veins prominent beneath; male 
flower-whorls 1-14 lin. apart, female crowded (2) Galpini. 
Underside of leaves densely tomentose, the hairs 
quite hiding the whole surface ; male flower- 
whorls 3-1 lin. apart, female densely crowded (3) Bainesii. 
1. I. riparia (N. E. Br.); a stout herb 24-5 ft. high; stems 
obtusely 4-angled, branching above, puberulous, at least on the 
upper part; leaves with a pubescent petiole 4-34 in. long and 
blade 14-6 in. long, 1-5 in. broad, broadly ovate, notched (or some 
on the panicle entire and rounded) at the base, acute or subacute at 
the apex, coarsely and obtusely toothed, with the lower margin of 
the teeth denticulate, not rugose and the tertiary veins not at all 
prominent beneath, pubescent on both sides, with the hairs longer 
than the thickness of the veins on which they stand and not hiding 
the surface between them ; panicle 6-15 in. long, 4-8 in. in diam. ; 
male spikes 1-3 in. long, 1—} in. in diam., lax, with the flower- 
whorls 4—} in. apart ; bracts about 1 lin. long, 14-1} lin. broad, 
very broadly triangular-ovate, subacute, concave, minutely pubescent, 
ciliate ; pedicels 4 lin. long; calyx } lin. long, cup-like, 3-lobed 
to the middle, puberulous; dorsal lobe elliptic or suborbicular, 
obtuse; lateral Jobes elliptic-oblong, acutely bifid at the apex ; 
corolla unequally 5- (or occasionally 4-) lobed, minutely and thinly 
pubescent outside, white or pale-lilac ; tube about 1 lin. long, 3 lin. 
in diam. at the oblique mouth, with a tuft of hairs near the base 
inside ; lower lobe larger than the others, #-1 lin. long, oblong, 
obtuse ; stamens 4, about ? lin. long, subequal, exserted ; ovary 
4-lobed, abortive; style shortly bifid at the apex; female spikes. 
3-1 in. long, } in. in diam., with flower-whorls somewhat crowded 
or $1 lin. apart ; bracts }—3 lin. long, otherwise as in the male ; 
pedicels as in the male; corolla very like that of the male but 
smaller, 3—} lin. long ; stamens none ; ovary perfecting seeds ; styles 
much exserted ; stigmas linear, spreading. Moschosma ripariwm,. 
Hochst. in Flora, 1845, 67 ; Krauss, Beitr. FI. Cap- und Natal. 131 ;. 
Benth. in DC. Prodr. xii. 49 ; Wood & Evans, Natal Pl. i. tt. 1 and 2 ;. 
Gard. Chron. 1902, xxxi. 122, fig. 35, and 1904, xxxv. 30, fig. 13. 
Katanarti Recton: Transvaal; near Shilovane, Junod, 538 ! Marovunye forest, 
Junod, 1275! 
EasteRN Recton : Natal ; banks of streams, Krauss, 331! Inanda, Wood, 141 ! 
near Durban, Wood in MacOwan «& Bolus, Herb. Norm. 1001! Tugela Valley, 
Sutherland ! common throughout the colony, Gerrard, 1889 ! 
2. I. Galpini (N. E. Br.); a stout herb 3 ft. high; stems. 
obtusely 4-angled, densely pubescent, slightly harsh to the touch ; 
leaves absent from the flowering panicle; petiole 3-1 in. long ; 
blade 13-3} in. long, 14-2} in. broad, ovate, obtuse or subacute, 
broadly rounded at the base, coarsely toothed, not rugose, with 
the tertiary veins distinctly prominent beneath, densely covered 
with minute adpressed hairs above, shortly and thickly pubescent, 
