LIII. MELASTOMACE #. 1138 
the petals, either once or usually twice as many, those oppo- 
site the petals sometimes abortive ; filaments inflexed in bud ; 
anthers 2-celled, opening by terminal pores, or rarely splitting. 
Ovary usually plurilocular (rarely unilocular) ; ovules nume- 
rous; style simple; stigma undivided. Fruit a capsule or 
berry. Seeds without albumen. — Leaves opposite, entire, 
usually 3- or more ribbed, without pellucid dots, exstipulate. 
* Undershrubs, with 3-5-ribbed, rough leaves. 
Calyx-limb persistent, with accessory teeth ; anthers 
with a club-shaped appendage at base . pete 
Calyx-limb deciduous; tube covered with bristly 
scales ; anthers with a 2-fid or 2-parted appendage 
1. ARGYRELDA. 
EMEA Na Mao i itlentvsy syste tla 2. Dissoris. 
** Trees and shrubs with 1-nerved, glabrous leaves. 
Calyx-tube ovoid ; stamens 8; ovary l-celled . . . 3. Mrmecy1on. 
Calyx-tube cylindrical ; stamens 5; ovary 5-celled . 4. OLINIA. 
1. ARGYRELLA, Naud. 
Calyx-tube bell-shaped ; limb of 5 ovate acute lobes, equal- 
ling the tube, twisted imbricate in estivation, alternating with 
as many subulate accessory teeth (not stellato-setose at apex). 
Petals obovate. Stamens 10, unequal; anthers linear-subu- 
late, opening by a single pore, recurved, undulate along the 
inner side, the 5 larger with the connective very long, pro- 
duced beyond the insertion of the filament into a clavate 
appendage ; the 5 smaller with a very short 2-dentate connec- 
tive, confluent with the apex of the filament. Ovary 5-celled, 
half-inferior, the upper half free, 5-lobed, tomentose ; style 
filiform. Capsules contained in the persistent calyx. Seeds 
cochleate, striate— Naud. in Ann. Se. Nat., Ser. 3, xii. p. 300. 
Osbeckia, ex parte, Fl. Cap. ii. p. 518. 
A. canescens (Osbeckia canescens, KH. Mey.!; Graham in Bot. Mag.! t. 
3790 ; O. Umlaasiana, Hochst.) is an erect, virgate branching undershrub, 
found near Natal. All parts pale, tomentose with very minute, stellate 
hairs. Leaves sessile or subsessile, oblong-lanceolate, 5-nerved, netted- 
veined beneath. Flowers purple, handsome, corymboso-paniculate. 
2. DISSOTIS, Benth. 
Calyx-tube ovoid, covered with palmately-cut scales, ad- 
hering by its ribs to the ovary or at length free; limb 4-5- 
parted, deciduous, many-bristled at theapex. Petals obovate, 
ample. Stamens 10, unequal ; anthers linear-subulate, open- 
ing by a single pore, subrecurved, the 5 larger with the con- 
nective very long, produced beyond the insertion of the fila- 
ment into a deeply 2-lobed or 2-parted appendage; the 5 
smaller with a short connective, equally 2-lobed at base. 
Ovary crowned with bristles, 4-5-celled; style equal or 
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