4MDYNAMIA ANGIOSPERMIA, 
111 
Root perennial; creeping. Stem about a foot high, obtusely 4-angled, 
Occasionally branched. Leaves till obtuse, with a margin slightly undu- 
late, the lower ones nearly round. Calyx with a short tube, the segments 
subulate, almost setaceous, hispid; in the former species the calyx is gene- 
rally divided to the base. Border of the Corolla equally 5-cleft, slightly, 
emarginate, pale blue or purple, spotted with a dusky yellow. Stamens 
shorter than the corolla. Anthers sagittate. Germ surrounded at base 
with an orange coloured glandular ring. Style a little longer than the sta- 
mens. Stigmas simple. Seeds few in each cell of the capsule. 
The R. Biflora of Linnaeus probably belongs to this species, I have 
omitted the name as evidently incorrect; the habit of the plant is to pro- 
duce in the first instance one flower in each axil, if it grows luxuriantly 
two lateral opposite flowers are next produced, so that the axils are 1 Or 3 
flowered and may increase afterwards regularly by pairs. It may occa- 
sionally happen that one of the lateral buds will prove abortive, or one 
may shoot up and expand before the other, in either of these cases a biflo- 
rous specimen may be collected, but this is accidental and not the habit of 
the genus. 
Grows in sandy pine barrens. 
Flowers from May to the close of the summer. 
A 
5. Humistrata. Mich* 
R. glabriuscula, dif- 
fusa, radicans ; foliis 
in petiolum longius- 
eule angustatis, ovali- 
bus, obtusis ; floribus 
subsessilibus ; capsu- 
lis linearibus. 
Glabrous, diffuse, 
radicant ; leaves at- 
tenuated at base into 
a long petiole, oval, 
i obtuse ; flowers near- 
ly sessile ; capsule lin- 
ear. 
Mich. 2. p. 23. Pursh 2. p. 421. 
Found by Michaux in the Southern parts of Georgia. I have found no 
species exactly agreeing with the description. 
Flowers probably through the whole summer. 
The plants described under this head will undoubtedly belong to Ruel- 
lia, however the genus may be limited. In fact they agree so much 
among themselves, that it is difficult to find specific distinctions. But be- 
tween the almost campanulate flower of the Ruellia and the bilabiate some- 
what ringent, corolla of the Justicia, at least as the species are presented 
to us in this country, the difference is so great that nothing but the capsule 
appears to connect the two genera. See. Smith’s observations on RUEL- 
LIA in Rees’ Cyclopoedia,. 
