DIANDRIA. Mt)NOGYNlA. 9 



spharocarpa, the capsule is nearly globular; moreover, the 

 G. acv7nhiataha.s 4 fertile stamens! 



Species. § 1. with 2 bractes at the baseof the calix.— 1. 

 G. virginica. 2. aurea. 3. pilasa. 4. sphcerocarpa — § 2. without 

 bractes. — 5. qiiadridentata. 6. acuminata. 7. tetragvna. 8. 

 megalocarpa' 



Obs. Of 22 species of this .c^enus now described, 8 are 

 natives of the United States.— 1 of Europe, nearly allied to 

 the G. aurea and G. virgivica.—l 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; so 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 40ih 

 degree of north latitude. 



15. LINDERNIA. L. 



Calix 5-parted, nearly equal. Corolla tiibu- 

 lose, bi-labiate; upper lip short, emarginate; 

 lower trifid, unequal. Filaments 4, the 2 longer 

 forked, and sterile. Stigma bilamellate. Cap- 

 sule 2-ceIled, 2-valved; seminiferous dissepiment 

 parallel with the valves. 



Herbaceous plants with opposite leaves, and generally 

 solitarv, axillary flowers, gieatly resembling the precedmg 

 genus," to which it is very closely allied; though well dis- 

 tinguished by having 2 of the f laments Ufid and for the 

 most part sterile, except perhaps in the L. Pyxidaria, the 

 Linnxan type of the genus, which is described as having 

 the 2 inferior filaments terminated by a tooth or process 

 passing beyond the anther which is almost laterally in- 

 serted (or more probably situated upon another shorter 

 stipe.) The Lindernia is also distinguished from the preced- 

 ing genus bv its parallel dissepiment. There is indeed 

 already a L.'diaiithera, discovered by Swartz in the West 

 Indies; and Mr. Elliott remarks that there are only 2 an- 

 thers in the L. dilatata and L. attenuata of Muhlen- 

 burgh's Catalogue, and ihat in the latter species the infer- 

 tile filaments are villous. Besides these, there is another 

 species; viz. the L. monticola ot the hills of New Hamp. 

 shire. 



Obs. The genus Lindernia, except the L. Pyxidanaoi 

 Europe, appears entirely confined to North America. Tlie 

 L. Japonica of 'I'hunberg, descrbed as having terminal 

 rjicemes, cannot cert-ainly appertain to this genus. The 



