226 The Ohio Journal of Science [Vol. XXI, No. 



1. Conobea multifida (Mx.) Benth. Conobea. 



A viscid-pubescent, diffusely spreading, much branched annual, 4-S 

 in. high. Leaves opposite, i^^-l in. long, pinnately-parted, the segments 

 linear or linear-oblong. Flowers small, blue; corolla slightly longer 

 than the calyx. Along streams and rivers. June-September. Ham- 

 ilton, Greene, Madison and Ottawa Counties. 



9. Gratiola L. Hedge-hyssop. 



Low herbs inhabiting wet or damp places, with opposite, 

 sessile, entire or dentate leaves. Flowers white or yellowish, 

 peduncled, solitary and axillary, usually with two bractlets at 

 the base of the calyx. Corolla more or less two-lipped. The 

 two upper stamens fertile, the lower pair vestigial, minute, or 

 sometimes represented by two slender, capitate filaments. 

 Seeds numerous, striate. 



1. Plant glabrous or nearly so; peduncles much shorter than the subtending 

 leaf-bracts; corolla within throat pubescent with knobless hairs. 



G. sphaerocarpa. 

 1. Plant glandular-puberulent; peduncles as long as or longer than the subtend- 

 ing leaf-bracts; corolla within throat pubescent with knobbed hairs. 



G. virginiana. 



1. Gratiola sphaerocarpa Ell. Round-fruited Hedge-hyssop. 



Glabrous, ascending or erect, annual, simple or branched, G-12 in. 

 high. Leaves oblong or obovate-oblong, sessile, toothed, 3-5 nerved, 

 narrowed at the base, 1-2 in. long, M~/^ in. wide. Peduncles stout, 

 much shorter than the subtending leaf -bracts. Flowers small, the 

 corolla tube yellow, the limb paler; corolla within throat pubescent 

 with knobless hairs. Capsule globose. In wet places. June-September. 

 Erie County. (Gratiola virginiana L., according to Pennell.) 



2. Gratiola virginiana L. Clammy Hedge-hyssop. 



Annual, stem glandular-puberulent above, widely branched, 3-12 in. 

 high. Leaves oblong or oblong-lanceolate, sessile, narrowed at both 

 ends, entire or sparingly toothed, 1-2 in. long, 'k-3^^ in. wide. Peduncles 

 slender, glandular, nearly as long as or longer than the subtending leaf- 

 bracts. Corolla-tube yellowish; limb almost white; corolla within 

 throat pubescent with knobbed hairs; sterile filaments minute or none. 

 Capsule broadly ovoid, as long as the calyx. In wet places. May- 

 October. General. (Gratiola neglecta Torr., according to Pennell.) 



10. Ilysanthes Raf. False Pimpernel. 



Small, smooth, annual or biennial herbs, with opposite, 

 sessile, usually dentate leaves. Flowers small, purplish, 

 peduncled, without bracts, solitary in the axils. Corolla 

 two-lipped. The two upper stamens fertile, and included, the 

 two lower ones sterile, two-lobed, the one lobe capitate and 

 glandular, the other smooth and shorter. Seeds numerous, 

 wrinkled. 



