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Swertia. } LXXXVI1, GENTIANEH (BAKER AND BROWN), 588 
33. S. intermixta, 4. Rich. Tent. Fl. Abyss. ii. 57. A very 
small annual; stems slender, simple, 2-3 in. long, faintly 4-angled. 
Lower leaves oblong-elliptic, obtuse, scarcely petiolate ; upper ovate, 
obtuse. Flowers tetramerous. Sepals elliptic-subspathulate, sub- 
obtuse, shorter than the corolla. Corolla-lobes elliptic, obtuse, with 
two densely ciliate nectaries at the base. Ovary subattenuate at the 
apex. 
Nile Land. Abyssinia: Shireh Province, Quartin-Dillon. 
13. LIMNANTHEMUOUM, S. G. Gmel.; Benth. et Hook. f. Gen. 
Pins $19: 
Calyx-tube very short; segments 5-6, lanceolate or oblong. 
Corolla-tube campanulate or shortly funnel-shaped, with 5-6 peltate 
tufts of hairs above the middle; lobes 5-6, oblong, valvate, the broad 
induplicate edges fimbriate or entire. Stamens 5-6, inserted at or 
below the corolla-sinuses; filaments short; anthers versatile. Hypo- 
gynous glands minute. Ovary 1-celled; placentas parietal. Style 
short or long; stigmas 2-lobed. Capsule globose, ovoid or oblong, in- 
dehiscent or bursting irregularly. Seeds few or many, smooth or 
tuberculate, sometimes subcarinate.—Aquatic herbs. Stems erect or 
runner-like with alternate or subopposite leaves, or resembling petioles, 
and described below as false petioles. Leaves orbicular, elliptic or 
ovate, deeply notched or rarely entire at the base, entire, crenate or 
toothed at the margin. Flowers solitary, in pairs or clusters at the 
nodes, or on the apparent petiole close to or at a little distance below 
the leaf-blade. Pedicels fascicled or single. Flowers yellow or white, 
heterostyled. 
Species several, widely spread through the tropical and temperate regions of both 
hemispheres. 
Many of the species of this genus, being much alike, require revision from care- 
fully prepared descriptions or notes made from living specimens. The characters 
afforded by the corolla are exceedingly difficult to observe in the dried state. The 
seeds, however, of the various species are very distinct when compared side by 
side, although it is somewhat difficult to state the differences in words. Other 
characters may be found in the pedicels and number of flowers in a cluster.— 
N. E. Br. 
Seeds smooth. 
Leaves coriaceous; seeds slightly shining, grey, 
mottled with darker : : ‘ : ee thunbergianum. 
Leaves thin; seeds opaque, light ochreous : . 2. L. abyssinicum. 
Seeds tuberculate or papillate-tuberculate. 
Leaves up to 42 in. broad; pedicels }—3 lin. thick, 
Seeds almost globose, whitish, densely covered 
with small tubercles; corolla-lobes ciliate and ; 
with numerous hairs on the disk . : . 8. L. Whyter. 
Seeds slightly compressed - globose, ochreous, 
densely and minutely papillate-tuberculate ; 
corolla-lobes ciliate and with numerous hairs os 
on the disk . : : 40 DL. karki. 
