1 66 



SCROPHULARIACEAE. 



[Vol. III. 



I . 'Wulfenia Houghtoniana ( Benth. ) Greene. 

 Houghton's Wulfenia. (Fig. 3285.) 



Synlhvris Houghloniana Benth. in DC. Prodr. 10: 454. 



Wulfenia Honghloniana Greene, Erythea, 2; 83. 1894. 



Pubescent; stem stout, i°-2>^° high. Basal leaves 

 ovate or orbicular, rounded at the apex, truncate, cor- 

 date or rcniform at the base, crcnulate all around, 2'-$' 

 long, 5-7-nervcd, petioled, the petiole usually shorter 

 than the blade; stem leaves small, '/i'-i' long, sessile 

 or slightly clasping, crenulate, obtuse, or acute, pass- 

 ing gradually into the bracts of the dense spike; flowers 

 greenish yellow, 2"-3"long; corolla present, variously 

 2-4lobed (comnionly 2-lobed), somewhat longer than 

 the calyx, its lobes obtuse, the stamens inserted on its 

 base; spike much elongated in fruit; capsule emargin- 

 ate, slightly exceeding the calyx. 



On dry prairies, Indiana to Minnesota, Michipran and 

 Iowa. May-July. 



2. Wulfenia riibra (Hook.) Greene. Western 

 Wulfenia. (Fig. 3286.) 



Gymiiandra rtibra Hook. Fl. Bor. Amer. 2: \o\. pi. 172. 



1S3S. 

 Svn'lliYris rubra Benth. in DC. Prodr. 10: 455. 1846. 



Witlfeiiia rubra Greene, I!rytliea, 2:83. 1S94. 



Similar to the preceding species but lower, pubes- 

 cent or tomentose, seldom over 1° high. Basal leaves 

 ovate or oblong, obtuse or acute at the apex, narrowed, 

 truncate or cordate at the base, i>2'-3'long, crenulate, 

 petioled, indistinctly nerved; stem leaves ovate or 

 lanceolate, acute, sessile, crenulate, or entire, ]i'-\' 

 long; spike very dense, i'-2' long in flower, 2'-5' long 

 in fruit, its bracts purplish; corolla none; stamens in- 

 serted on the outer side of the hypogynous disk; cap- 

 sule little compressed, emarginate, slightly longer than 

 the calyx. 



In dry soil, Northwest Territory to Nebraska, west to 

 British Columbia and Utah. May-June. 



19. VERONICA L. Sp. PI. 9. 1753. 



Annual or perennial herbs (some exotic species shrubs or trees), with opposite and alter- 

 nate, rarely vcrticillate leaves, and mostly small blue purple pink or white flowers, terminal 

 or axillary, racemose, spicate, or solitar3\ Cal\ x mostly 4-parted, sometimes 5parted, the 

 segments oblong or ovate. Corolla rotate, its tube very short, deeply and more or less un- 

 equally 4-lobcd (rarely 5-lobed) the lower lobe commonly the narrowest. Stamens 2, diver- 

 gent, inserted on either side and at the base of the upper corolla-lobe; anthers obtuse, their 

 sacs confluent at the summit; filaments slender. Ovary 2-celled; style slcmier; stigma 

 capitate; ovules few or numerous iu each cavity. Capsule more or less compressed, some- 

 times very flat; emarginate, obcordate, or 2-lobed, loculicidally dehiscent. Seeds smooth or 

 rough, flat, plano-convex, or excavated on the inner side. [Named for St. Veronica.] 



About 200 species, of wide geographic distribution. Besides the following, 3 others occur in 

 northwest America. 



vl- FloiA'ers racemose in the axils of the leaves, bracteolate. 



Glabrous, or raitnitely glandular above (No. 3 rarely liairy ): brook or swamp plants. 



Leaves ovate, oval, oblong, or ohlong-lanceolate; capsule compressed. 



Stem leaves sessile, partly clasping, serrulate or entire. i. V. Anagallisaqualica. 



All the leaves petioled, serrate. 2. 1^. Americana. 



Leaves linear or linear-lanceolate; capsule very flat. 3. K. sculellala. 

 Pubescent, dry soil plants; leaves cren.ate or dentate. 



Leaves oval or obovate. petioled; pedicels shorter than the calyx. 4. K. officinalis. 



Leaves ovale, nearly or quite sessile; pedicels longer than the calyx. 5. V. Chamaedrys. 



.K- %v Flowers in terminal spikes or racemes, or solitary in the axils. 

 Flowers in terminal spikes. 



Leaves all sessile; capsule elliptic, emarginate. 6. V. alfiina. 



Lower leaves petioled: capsule orbicular, obcordate. 7. V. serpylli/olia. 

 Flowers solitary in most of the axils; peduncles shorter than the leaves. 



Erect; glabrous or glandular; capsule emarginate. 8. V. pere^rina. 



Diffuse; pubescent; capsule obcordate. g. l^. arvensis. 



