288 SCROPHULARIACE^E. (FIGWORT FAMILY.) 



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



branched, sojl viscid-pubescent or smooth. 

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



1. O. Virginiana, L. Stem rather clammy-pubescent above, loosely 

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

 toothed ; peduncles almost equalling the leaves (' - 1' long) ; pod ovoid (2'' long). 

 Wet places ; very common. June - Aug. 



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

 lance-ovate or oblong, toothed, peduncles scarcely lonyer than the calyx and the 

 large ( # ) globular pod. Wet places, Virginia ? Illinois, and southward. 



* Sterile filaments slender, tipped with a little head: leaves short ('-!' long). 



3. O. Yiscosa, 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. aiirea, Muhl. Nearly glabrous; leaves lanceolate or oblong-linear, 

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

 Vermont 1 New Hampshire, to Virginia, and southward. June - Sept. 



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

 stems: sterile filaments tipped with a bead. 



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

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



Low ground, Maryland and southward. 



12. IL.YSANTHES, Raf. (LINDERNIA, Muhl.) 



Calyx J>-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 tXws, mud or mire, and av6os,fiower.) 



1. 1. gratiololdes, 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. (Capraria 

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

 and along rivulets ; common. June - Sept. 



13. I II? HI Aft Til US, 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 globular, membranaceous, the thin partition vanishing. Seeds 

 rather numerous. A very small and inconspicuous annual, creeping and root 





