792 SCROPHULARIACEAE 



20. DIGITALIS [Bauhin] L. Sp. PI. 621. 1753. 



Erect perennial or biennial herbs, with alternate leaves and long racemes of flowers, 

 each subtended by a small bract-leaf. Bracteoles none. Sepals 5, distinct. Corolla cam- 

 panulate, with open orifice, the lobes only slightly distinguished, the lowermost longest. 

 Filaments 4, didynamous, all antheriferous. Stigmas distinct, lamellate. Capsule ovoid, 

 loculicidal. Seeds many, unwinged, reticulate. [Name Latin, meaning finger of a glove.] 



A genus of about 30 species, all Palaearctic. Type species, Digitalis purpurea L. 



1, Digitalis purpurea L. Purple Foxglove. Fig. 4779. 



Digitalis purpurea L. Sp. PI. 621. 1753. 



Biennial, finely pubescent, distally glandular, the basal and lower leaf-blades large, oblong- 

 lanceolate, acute, dentate, narrowed to slightly petioled bases, the flowering stems 12-18 dm. tall, 

 many-flowered, with linear-lanceolate entire bracts, and pedicels becoming 20-25 mm. long. 

 Sepals ovate, becoming 15-18 mm. long; corolla 40-50 mm. long, purple, on lower side pale with 

 purple spots and mottlings; capsule 12 mm. long; seeds 0.5 mm. long. 



Rocky coast, Humid Transition Zone; Vancouver Island south to northern California. Escaped from gardens. 

 May-Sept. 



21. VERONICA [Bauhin] L. Sp. PI. 9. 1753. 



Erect or repent perennial or annual herbs, with leaves opposite throughout or the upper 

 bract-leaves alternate. Bracteoles none. Sepals 5 or 4, distinct. Corolla nearly rotate, 

 cyanic, 4-lobed (by complete fusion of the upper pair). Stamens 2 (the postero-lateral 

 pair). Stigmas united and slightly capitate. Capsule flattened, loculicidal. Seeds flat- 

 tened, smooth or rarely roughened. [Presumably named in honor of St. Veronica.] 



A genus of about 250 species, of the North Temperate Zone, especially in the Old World. Type species, 

 Veronica officinalis L. 



Main stem terminating in an inflorescence, its flowers either densely crowded or remote and axillary, the upper 

 bract-leaves alternate. I- Veronicella. 



Main stem never terminating in an inflorescence, the leaves opposite throughout and the flowers all in axillary 

 racemes. II- Euveronica. 



I. Veronicella. 



Plant perennial from subterranean rhizomes; only the upper leaf-axils flower-bearing, so that inflorescence is 

 formed of definite racemes. 

 Capsule as long as or longer than wide, shallowly or not notched; corolla violet-blue, rarely nearly white, 

 internally glabrous; leaf-blades obtuse to acute; stems erect nearly or quite from base. 

 Style longer than the capsule; filaments equaling or exceeding the corolla; corolla 10-13 mm. wide; 

 calyx-lobes unequal, the lower longer; leaf-blades entire. 

 Leaf-blades oblong-elliptic, hirsute-pubescent, acute; sepals 5, the uppermost much the smallest, 



the others slightly unequal; capsule scarcely notched. 1. V. Copelandii. 



Leaf-blades elliptic-oval, glabrous or nearly so, obtuse to acutish; sepals 4, decidedly unequal; 

 capsule clearly notched. 2. V. Cusickii. 



Style shorter than the capsule; filaments shorter than the corolla; corolla 6-7 mm. wide; calyx-lobes 

 equal in length; leaf-blades crenate-serrate to entire. 3. V. Wormskjoldii. 



Capsule wider than long, deeply notched; corolla white or bluish, with deeper blue lines on upper side, its 

 tube internally pubescent; style nearly as long as the capsule; leaf-blades obtuse, obscurely crenate; 

 stems extensively repent, ascending at apex. 4. V. serpyllifolia. 



Plant annual, fibrous-rooted; most leaf-axils flower-bearing, so that inflorescence is of axillary flowers. 



Pedicels shorter than the lanceolate to linear sepals; capsule strongly flattened, its lobes rounded; seeds 

 many; plants erect. 

 Corolla whitish throughout; capsule greenish, the minute style hidden between the short capsule-lobes; 



plant glabrous, or with gland-tipped hairs. 5. V. peregrina. 



Corolla deep violet-blue; capsule yellowish brown, notched one-third its length or more, the longer style 

 about equaling the capsule-lobes; plant pubescent with glandless or obscurely gland-tipped hairs. 



6. V. arvensis. 



Pedicels longer than the ovate sepals; capsule relatively turgid, its lobes acutish with the most distal point 

 of each near its lateral margin; seeds few; stems repent. 7. V. persica. 



II. Euveronica. 



Plants pubescent; leaf -blades relatively wide, crenate-serrate to dentate; plants of dry soil. 



Leaf-blades ovate, dentate, truncate or cordate to nearly or quite sessile bases- sepals 4-5 mm. long, ex- 

 ceeding the capsule; corolla 5-6 mm. long; pedicels longer than subtending bracts; stem ascending. 



8. V. Chamaedrys. 



Leaf-blades narrowly elliptic to oval, crenate-serrate, narrowed to petiolar bases; sepals 2-3 mm. long, 

 shorter than the capsule; corolla 3—4 mm. long; pedicels shorter than subtending bracts; stem repent, 

 erect at apex. 9. V. officinalis. 



Plants glabrous or nearly so (occasionally hairy in V. scutellata) ; leaf-blades relatively narrow, finely serrate 

 to entire; plants of wet soil or aquatic. 

 Capsule less than one and a half times as wide as long, scarcely or not two-lobed; sepals nearly or quite 

 as long as the capsule; leaf-blades oblong-ovate to lanceolate, obtuse to acuminate, serrate to crenate- 

 serrate. 

 Leaf-blades all petioled, lanceolate to ovate-lanceolate; racemes usually 10-2S-flowered, the pedicels 



5-13 mm. long. 10. V. americana. 



Leaf -blades (at least the upper on the flowering stems) sessile and clasping, obtuse to acuminate; 

 racemes 15-60-flowered, the pedicels 3-8 mm. long. 



