288 SCROPHTJLARIACE^E. (FIGWORT FAMILY.) 



$ 1. Anthers with a broad connective: the cells transverse: stems mostly diffusely 



branched, soft viscid-pubescent or smooth. 

 * Steiile filaments minute or none : corolla whitish, with the tube yellowish. 



1. O. Virginia 11:1, L. Stem rather clammy-pubescent above, loosely 

 branched (4' -6' high); leaves lanceolate, nan-owed at the base, sparingly 

 toothed ; peduncles almost equalling the leaves ('-!' long) ; pod ovoid (2" long). 

 Wet places; very common. June -Aug. 



2. O. spliaerocarpa, Ell. Smooth, rather stout ( 5'- 10' high); leaves 

 lance-ovate or oblong, toothed, peduncles scarcely longer than the ca/yx and the 

 large (3") globular pod. Wet places, Virginia? Kentucky, and southward. 



=fc Sterile filaments slender, tipped with a little head : leaves short (' 1' long). 



3. O. V1SCOSO.J Schweinitz. Clammy-pubescent or glandular; leaves ovate- 

 lanceolate or oblong, acute, toothed, mostly shorter than the peduncles ; corolla 

 whitish, yellow within. Wet places, Kentucky and southward. July. Stems 

 4'- 10' high from a rooting base, as in the next. 



4. O. Slill'ea, Muhl. Nearly glabrous; leaves lanceolate or oblong-linear , 

 entire, equalling the peduncles ; corolla golden yellow (^' long). Sandy swamps, 

 Vermont ? and Mass, to Virginia, near the coast, and southward. June - Sept. 



2. Anthers with no broad connective ; the cells vertical : hairy plants, with erect rigid 

 stems: sterile filaments tipped ivith a bead. 



5. O. pilosa, Michx. Leaves ovate or oblong, sparingly toothed, sessile 

 (I' - | r long) ; flowers nearly sessile ; corolla white, scarcely exceeding the calyx 



- Low ground, Maryland and southward. 



12. II^YSANTHES, Raf. (LINDERNIA, MM.) 



Calyx 5-parted, nearly equal. Upper lip of the corolla short, erect, 2-lobed ; 

 the lower larger and spreading, 3-cleft. Fertile stamens 2, included, posterior ; 

 the anterior pair sterile, inserted in the throat of the corolla, 2-lobed, without 

 anthers ; one of the lobes glandular ; the other smooth, usually short and tooth- 

 like. Style 2-lipped at the apex. Pod ovate or oblong, many-seeded. Small 

 smooth herbs, with opposite leaves, and small axillary (purplish) flowers, or the 

 upper racemed. (Name from iXus, mud or mire, and av&o<i,fiower.) 



1. I. gratioloides, Benth. (FALSE PIMPERNEL.) Much branched, 

 diffusely spreading (4' -8' high); leaves ovate, rounded, or oblong, sparingly 

 toothed or entire, the upper partly clasping; pod ovoid-oblong. (L) (Capraria 

 gratioloides, L. Lindernia dilatata, & L. attenuata, Mufd.) Low grounds, 

 and along rivulets ; common. June - Sept. 



13. HE MI ANT HITS, Nutt. HEMIANTHUS. 



Calyx 4-toothed, equal. Corolla 2-lipped ; the upper lip very short, entire ; 

 the lower 3-lobed, with the middle lobe elongated and spreading. Stamens 2, 

 anterior, with a scale at the base of the filaments : sterile filaments none. Style 

 short. Pod Lrlobular, mcnibninarcous, the thin partition vanishing. Seeds 

 rather numerous. A very small and inconspicuous annual, cnrping and root- 



