Ord. 1.] PENTANDRIA MONOGYNIA. 51 



109. LOBELIA. Lobelia. 



1. L. Dortmdnna, 2. 140. (Water L.) Leaves linear, entire, of two 



longitudinal cells. Stems nearly naked. 

 Lakes, in the N. V-. 7. Smooth. L. immersed. Fl. light blue, 

 in a simple cluster. 



2. L. urens, 14. 953. (Acrid L.) Stem nearly upright. Lower 



leaves obovate, slightly toothed; upper lanceolate, serrated. 

 Clusters terminal. 

 Heaths in Devonsh., rare. V-. 8, 9. Stem If. leafy. Fl light 

 ■purplish blue. 



110. IMPiTIENS. Balsam. 



1. I. Noli-me-tdngere, 14. 937. (Yellow B. Touch-me-not.) Pe- 



duncles solitary, many-flowered. Leaves ovate. Joints of the 

 stem swelling. 

 Moist shady pi. rare. 0. 8. Smooth, juicy, erect, 1 — \h f FL 

 large and handsome, yellow, and spotted, with red. 



2. l.filva, Suppl. 2794. (Tavvny-fl.-Touch-me-not.) Leaves ovate, 



tapering to the base, coarsely serrated. Peduncles solitary, 



about 4-flowered. Cone of the nectary longer than the lateral 



petals, and twice as long as the closely recurved emarginate spur. 



Banks of the Wey, Surrey, naturalized. 0.7. A native of America. 



111. VfOLA. Violet. 



* Stem none. 



1. V. hirta, 13.894. (Hairy V.) Leaves heart-shaped, rough with 



hairs, as well as their stalks. Calyx-leaves obtuse. Lateral 

 petals with a hairy central line. 

 Chalky soil, rare. If . 4. Scyons short. Fl. blue, streaked with 

 black, scentless. 



2. V. odordta, 9. 619. (Sweet V.) Scyons creeping. Leaves heart- 



shaped, nearly smooth, as well as their stalks. Calyx-leaves 

 obtuse. Lateral petals with a hairy central line. 

 Woods. If. . 3, 4. Scyons very long. Fl. deep purplish blue, fragrant. 

 A white var. of this, found in Shropshire without hairiness on 

 the petals, is said by Prof Lindley to be the V. imberbis of 

 Mr. Leighton, — V. suavis, Bieb. 



3. V. palustris, 7.444. (Marsh V.) Leaves kidney-shaped, smooth. 



Root creeping. Lateral petals with a hairy central line. 

 Mossy bogs. If. 4. Scyons 0. Fl. very pale blue, with purple streaks. 



** Stems 1 or more. 



4. V. canina, 9. 620. (Dog's V.) Stem at length ascending, chan- 



nelled. Leaves oblong-heart-shaped. Calyx acute. Stipulas 

 serrated. Bracteas awl-shaped, entire. 

 Groves and heaths. If . 4 — 6. Branched, smooth. Fl. blue, scentless. 



5. V. lactea, 7. 445. (Cream-coloured V.) Stem ascending, round. 



Leaves ovate-lanceolate. Stipulas jagged. Bracteas lanceolate, 

 somewhat serrated. 



