526 Order 86.— SCROPHULARIACE^E. 



22. SYNTrTTRIS, Benth. (Gr. ovv, together, Ovptg, a door; sc. 

 valves closed.) Calyx 4-parted ; corolla subcampanulate, segments 4, 

 erect-speading or ; stamens 2, inserted into the tube of the corolla, 

 exserted ; anther cells parallel, distinct ; capsule compressed, obtuse or 

 emarginatc, loculicidal, seeds plano-convex. — 21 N. American, with a 

 thick root. Radical lvs. pctiolate, cauline bract- like, on the scapc-lik« 

 stem, alternate. Fls. racemed or spicate. 



S. Houghtoniana Benth. Hirsute, radical lvs. ovate, subcordato at base, crenu- 

 late, obtuse ; scapo erect, clothed with foliaceous bracts, dense-flowered above ; 

 cor. as long as the calyx, upper segment longer than the other very short ones. — 

 Dry hills, Wis. (Lapham). Lvs. 2 to 3' by 1£ to 2', on petioles about an inch 

 long, some of the leaves often suborbicular. Bracts much smaller, ovate and 

 ovate-lanceolate, clasping. Scapo 9 to 12' high. Spiko elongated in fruit. 



23. DIGITA'LIS, L. Fox-glove. (Lat. digitabulum, a thimble.) 

 Calyx 5-parted ; corolla campanulate, ventricous, upper lip rcflexed, 

 spreading, middle segment of the lower lip broadest ; capsule ovate, 2- 

 celled, 2-valved, with a double dissepiment. — Herbs or shrubs of Europe 

 and Asia. Lower lvs. crowded, petiolate, tipper alternate. Fls. in 

 showy racemes. Poisonous and medicinal. 



§ Corolla tube subglobons, scarcely longer than the lower lip Xos. 1, 2, 7 



tj Corolla tube campanulate, twice longer than the lower lip Nos. 3, 4, (i 



§ Corolla tube subcylindric, twice longer than the lower lip Wo. ft 



1 D. orientalis Lam. St. and lance-linear lvs. glabrous ; spike interrupted, 

 glaudular-villous ; pedicels very short ; cal. segments ovate-lanceolate, acute ; cor. 

 pubescent, lower segments oblong, obtuse. — H Bythinia. Height 8f. Corolla 

 purplish, spotted. 



2 D. fermginea. Lvs. oblong-lanceolate, very smooth ; rac. many-flowered ; cal. 

 segments oval- elliptical, obtuse; cor. limb subglobous, woolly, lower segment ovato. 

 — U in Greece, Armenia and Circassia. Corolla rust-colored, 16" long, lower lip 

 longest, densely bearded, f 



3 D. purpurea L. Lvs. oblong, rugous, petiolate, crenate; cal. segm. ovato ob- 

 long; cor. obtuse, upper lip entire; ped. as long as tho calyx. — CD Plant 2 to 3f 

 high, with large, rough, downy lvs. Fls. numerous, in a long, simplo spike, 

 large, crimson, often white, with eye-like spots within. Jl. \ f Eur. 



4 D. grandiflora Allioni. Lvs. ovate or oblong-lanceolate, veiny, serrulate, 

 amplexicaul ; rac. tomentous, lax ; cal. segments lanceolate, acute ; cor. ventricous- 

 campanulate, segments broader than long, lowest twice broader than the lateral. 

 If in Europe. Plant 2 — 3f high. Flowers 14' long, yellow, varying to brown- 

 ish or orango. \ 



5 D. lutea L. Very smooth ; lvs. oblong or lanceolate, denticulate ; rac. 

 uecund, many-flowered ; cal. segments lanceolate, acuto; cor. glabrous, tube sub- 

 ventricous, lower segment half as long again as the rest. — % Europe. Stem 

 3f high. Flowers 8 — 10" long, yellow, varying to white, f 



6 D. Thapsi, with mullein-liko lvs. all radical and flat on tho ground. 



7 D. leucoph^a, with very large, dense, leafy racemes of dusky whito fls., 

 and a few other species may bo found in gardens. There aro also many hybrids, 

 difficult of course, to determine. 



24. VERON'ICA, L. Speedwell. (Perhaps named for S£ Verontcq^ 



Calyx 4-parted ; corolla subrotatc, deeply 4-cleft, lower segments mostly 

 narrow ; stamens 2, inserted into tho tube, exserted ; sterile fil. ; cap- 

 sule compressed, 2-sulcatc, often obcordate, 2-ccllcd, few-seeded. — 

 Herbs or shrubs (the following species herbs). Lvs. opposite. Fls. sol- 

 itary, axillary or in racemes, blue, flesh-colored or white. 



Tall, erect (IS' to 4f ). Fls. in dense, terminal Bpikes. Corolla tube elongated Sfos. 1, IS 



Low, voak (,3 to 1'2'). Leaves opposite (at base ). Corolla tube very bhort. (a) 



