846 



SCROPHULARIACEAE 



Veronica 



~ 50 



Map 1838 



Lindernia anagallidea (Michx.) Pennell 



"50 



Map 1839 



Veronica peregrina L, var. typica 



~~To 



Map 1840 

 Veronica peregrina 

 var. xalapensis (HBKJ Pennell 



Pedicels shorter than the calyx; leaves sessile except the lowermost ones 



3. V. arvensis. 



Pedicels longer than the calyx. 



Lobes of capsule somewhat acutish, strongly divergent, the most distal point 

 of each near the lateral margin; styles as long as or exceeding the cap- 

 sules, usually 1.5-2 mm long; pedicels mostly 12-25 mm long. .4. V. persica. 

 Lobes of capsule rounded, not strongly divergent, the most distal point about 

 midway between the style and the lateral margin; styles usually not 

 exceeding the capsules, about 1 mm long. (See excluded species no. 



567, p. 1089) V. agrestis. 



Leaves all opposite; flowers in axillary racemes — these sometimes reduced to a single 

 flower or sometimes appearing terminal. 

 Capsules pubescent; stem, leaves, pedicels, and sepals pubescent; plants of dry soil. 



Leaves oval or obovate, petiolate; pedicels shorter than the calyx 



5. V. officinalis. 



Leaves ovate, nearly or quite sessile; pedicels longer than the calyx 



6. V. Chamaedrys. 



Capsules glabrous or with a few minute gland-tipped hairs; stems, leaves, pedicels, 

 and sepals glabrous or sparsely glandular-puberulent (or rarely pubescent in 

 Veronica sciitellata) ; plants more or less semi-aquatic. 

 Capsule conspicuously wider than long, strongly two-lobed, mostly 4-5 mm wide; 



pedicels filiform and reflexed in fruit 7. V. scutellata. 



Capsule not conspicuously wider than long, and scarcely or not at all two-lobed. 



Leaves all petiolate; plants strictly glabrous; pedicels 5-13 mm long 



8. V. americana. 



Leaves not all petiolate, at least the upper ones sessile and clasping; pedicels 

 3-6 mm long; plants more or less glandular-pubescent, at least in the 

 inflorescence. 

 Sepals acute or acuminate; capsule scarcely wider than long, not at all or 

 only slightly notched at the apex; leaf blades lanceolate to ovate-lanceo- 

 late, serrate with close teeth (four or more to 1 cm), those of young 

 autumnal shoots petiolate. 

 Pedicels, rachis, and upper part of stem glabrous or nearly so; sepals acute 

 to slightly acuminate; styles 1.5-3 mm long; leaf blades oblong-ovate, 

 mostly widest about the middle, slightly serrate to nearly entire. (See 

 excluded species no. 568, p. 1089) V. Anagallis-aquatica. 



