174 OROBANCHACEAE 



3. G. purpurea L. Resembles the last but is less scabrous, the leaves 

 are linear and the smaller capsule is globose. In moist meadows, Sibley, 

 Lake City to Buckner, Independence. Frequent locally. August-Sep- 

 tember. 



4. G. tenuifolia Vahl. Stein branching, glabrous, 6'-2(/ high : leaves 

 linear, 6 // -14 // long, somewhat scabrous : pedicels spreading : flowers 9 /x 

 long : capsules usually 2 /x long : upper pedicels exceeding the leaves. In 

 moist grounds throughout. July-September. 



5. G. Besseyana Britton. Like the last but the leaves 9 // -18 // long, 

 scabrous : pedicels ascending : capsules 2j // -3 // long : upper leaves ex- 

 ceeding the pedicels. Common throughout in moist meadows and woods, 

 especially along the Missouri River. July-September. 



6. G. Skinneriana Wood. l-2 high, scabrous, the branches and 

 pedicels strictly erect : leaves linear, 6 X/ long: pods 3 // -4 // long. Rarely 

 occurs in barrens at Greenwood. July-September. 



17. PEDICULARIS L. 



Herbs with pinnatifid leaves and flowers in terminal spikes. Corolla 

 2-lipped, the upper strongly arched, the lower erect, 3-lobed, the lobes 

 spreading. Stamens ascending under the upper lip. 



1. P. Canadensis L. LOUSEWOKT. S'-IS 7 high, hairy : leaves ob- 

 long-lanceolate, pinnately parted : corolla yellow, 10" long, the upper 

 lip 2-toothed at the apex. Frequent in dry banks and prairies through- 

 out the southern part. April-May. 



FAMILY 111. LENTIBULARIACEAE Lindl. 

 Herbs with perfect, irregular flowers borne on erect scapes. Calyx 2- 

 lipped. Corolla strongly 2-lipped, the lower lip 2-lobed, with a palate 

 nearly closing the throat, and spurred at the base. Stamens two. Ovary 

 superior, 1-celled, with a free central placenta bearing many ovules. 



1. UTRICULARIA L. BLADDERWOET. 



Ours are aquatic herbs with finely dissected bladder-bearing leaves and 

 yellow flowers. Upper lip of corolla erect, the lower bearded in the throat. 



Pedicels recurved in fruit. 1. U. vulgaris. 



Pedicels erect in fruit. 2. U. biflora. 



1. U. vulgaris L. Scapes 3-15-flowered : corolla G^-O" broad, the 

 lower lip longer than the spur. Common in ponds near Sheffield, 

 Atherton, Sibley and Lake City. May-September. 



2. U. biflora Lam. Scapes 1-8-flowered : corolla 3"-5" broad, the 

 spur nearly as long as the lower lip. Abundant at times in the lake at 

 Lake City. July-September. 



FAMILY 112. OROBANCHACEAE Lindl. 



Root-parasitic herbs, the leaves reduced to scales. Flowers perfect, 

 irregular. Calyx 4-5-toothed. Corolla tubular, 2-lipped, the lower lip 



