DIANDRIA. MONOGYNIA. ’ 9 
spherocarpa, the capsule is nearly globular; moreover, the 
G. acuminatahas 4 fertile stamens! = 
Species. §1. with 2 bractes at the base of the calix—1. 
G. virginica. 2. aurea. 3. pilosa. 4. spherocarpa.—§ 2. without 
bractes.—5. guadridentata. 6. acuminata. 7. tetrazona. 8. 
megalocarpa- ‘ RS ae ee Ee 
* Ops. Of 22 species of this genus now described, 8 are 
natives of the United States.—1 of Europe, nearly allied to 
the G. aurea and G. virginica —I in Peru.—2 in the West 
Indies, and 10 in India. A majority of the North Ameri-« 
can species are confined to the warmer states; sv that the 
genus Gratiola, almost equally divided betwixt India and 
North America, originates apparently within the tropics, 
and in the latter continent extends chiefly to the 40th 
degree of north latitude. 2 ee 
15. LINDERNIA. L. 
- Calix 5-parted, nearly equal. Corolla tuba: = = 
lose, bi-labiate; wpper lip short, emarginate; 
lower trifid, unequal. Filaments 4, the 2 longer 
_ forked, and sterile. Stigma bilamellate. Cap- . 
sule 2-celled, 2-valved; seminiferous dissepiment ~—_ 
parallel with the valves. | re a RE 
Herbaceous plants with opposite leaves, and generally 
solitary, axillary flowers, gieatly resembling the preceding 
genus, to which it is very closely allied; though well dis- 
tinguished by having 2 of the flaments bifid and for the 
most part sterile;except perhaps in the L. Pywidaria, the 
Linnean type of the genus, which is described as haying 
the 2 inferior filaments terminated by a tooth or pggcess 
passing beyond the anther which is almost lat 
serted (or, more probably situated upon anothe eI 
stipe.) The Lindernia is also distinguished from the pueeed- 
ing genus by its parallel dissepiment. There is m@eed 
already a L. dianthera, discovered by Swartz in the West 
Indies; and Mr. Elliott remarks that there are only 2 an- 
thers in the ZL. dilatata and L. attenuata of Mublen- _ 
burgh’s Catalogue, and that in the latter species the infer- 
tile filaments are villous. Besides these, there is another — 
species; viz. the L. monticolq of the hills of New Hamp- 
shire. 
Oss. The genus Lindernia, except the L. Pyxidaria of — 
Europe, appears entirely confined to North America. The — 
L. Japonica of Thunberg, described as having t z 
‘Hicemes; cannot certainly appertain to this gent 
