1921] 



Pennell, — "Veronica" in North and South America 31 



B' 



Leaf-blades, at least the upper on the flowering- 

 stems, sessile and clasping, obtuse to acumi- 

 nate. Racemes 15-60-flowered, the pedicels 

 3-8 mm. long. Plants of deeper water, usu- 

 ally mostly submersed. 

 Capsule 2.5-4 mm. long. Style 1.3-2 mm. long. 

 Cauline leaf-blades acute to acuminate. 

 Sepals acute to acuminate. Capsule scarcely 

 wider than long, not or slightly notched. 

 Leaf-blades serrate with close teeth 

 (four or more to 1 cm.). Racemes usu- 

 ally 30-60-flowered, with pedicels 4-8 

 mm. long. 

 Stem distally, rachis and pedicels glabrous. 

 Capsule globose-ovoid, acutish or 

 rounded, not or scarcely emarginate. 

 Style 1.5-2 mm. long. Leaf -blades 

 oblong-ovate, mostly broadest about 

 the middle, the lower usually obviously 

 narrowed at base or petioled. 

 Sepals acuminate, 4-5 mm. long. Cap- 

 sule 3-4 mm. long. Pedicels 5-8 



mm. long 25. V. Anagallis-aquatica. 



Sepals acute, 2.5-4 mm. long. Capsule 

 2.5-3 mm. long. Pedicels 3-5 mm. 



long 25a. V. Anagallis-aquatica Brittonii. 



Stem distally, rachis and pedicels finely 

 pubescent with minute gland-tipped 

 hairs. Capsule nearly globose, slightly 

 emarginate. Style 1.3-1.5 mm. long. 

 Leaf-blades lanceolate, mostly broad- 

 est near the base, all obviously clasp- 

 ing 26. V. glandifera. 



Sepals obtuse to acutish. Capsule obviously 

 wider than long, evidently notched. 

 Leaf-blades crenate-serrate with remote 

 teeth (two to three to 1 cm.), lanceolate, 

 all clasping. Racemes usually 15-30- 

 flowered, the pedicels 3-6 mm. long. 

 Stem distally, rachis and pedicels glabrous. 



Style 1.4-1.6 mm. long 27. V. catenata. 



Stem distally, rachis and pedicels finely 



Eubescent with minute gland-tipped 

 airs. Style 1.5-1.8 mm. long 



27a. V. catenata glandulosa. 

 Capsule 2 mm. long, globose, not or scarcely 

 notched. Style .7-1 mm. long. Cauline 

 leaf-blades oblong-lanceolate, obtuse or 

 obtusish. Stem distally, rachis and pedi- 

 cels usually pubescent with minute gland- 

 tipped hairs 28. V. undvlata. 



Capsule much wider than long, strongly two-lobed. 

 Sepals shorter than the capsule, equal. Leaf- 

 blades linear or lanceolate, remotely setaceous- 

 toothed or entire. Stem glabrous or pubescent 

 with glandless hairs. Racemes 5-20-flowered, 

 the filiform pedicels reflexing in fruit 29. V. scutellata. 



