SCEOPHULARIACEAE (FIGWORT FAMILY) 723 



oblong; thyrse elongated, slender; corolla about 2 cm. long, trumpet-shaped, 

 with slender gradually expanded tube, blue. — Sandy and rocky soil, Minn, to 

 Tex., and westw. May-July. 



7. CHEL6nE [Tourn.] L. Tuetlehead. Snakehead 



Calyx of 5 distinct imbricated sepals. The moutli of tlie corolla a little open ; 

 upper lip broad and arched, keeled in the middle, notched at the apex ; lower 

 woolly-bearded in the throat, 3-lobed at the apex, middle lobe smallest. Seeds 

 many. — Smooth perennials, with upright branching stems, serrate leaves, and 

 large white or purple flowers, which are nearly ses-sile in spikes or clusters, and 

 closely imbricated with round-ovate concave bracts and bractlets. (Name from 

 XfXiii''?! a tortoise, the corolla resembling in shape the head of a reptile.) 



1. C. glabra L. (Balmony.) Stem 0.5-2 m. high ; leaves narrowly to 

 broadly lanceolate, 0.5-2 dm. long, 1-4 cm. wide, gradually acuminate, serrate 

 with sharp appressed teeth, narrowed at base usually Into a very short petiole ; 

 bracts not ciliate ; corolla white, or tinged with rose. — Wet places, Nfd. to Man., 

 and southw. July-Sept. 



2. C. Obliqua L. Less strict or with spreading branches, 5-8 dm. high ; leaves 

 broadly lanceolate to oblong, 0.6-2 dm. long, sometimes laciniately serrate, more 

 veiny and duller, acute or obtuse at base, mostly short-petioled ; bracts ciliolate; 

 corolla dee}:) and bright rose-color. — Rich damp woods, etc., is. 111. to Va. 

 and Fla. 



3. C. Ly6ni Pursh. Leaves elliptic to broadly ovate, abruptly acuminate, 

 sharply serrate, long-petioled ; bracts ciliolate ; corolla rose-purple. — Mts. from 

 Va. southw. 



8. PAULdWNIA Sieb. & Zucc. 



Calyx 5-oleft. Corolla-tube enlarged upward, the 6 unequal lobes spreadmg. 

 Stajnens didynamous ; sterile filament none. Seeds numerous, winged. — Tree, 

 with large cordate pubescent petioled leaves and terminal panicles of large violet 

 flowers. (Named for Anna Paulowna, a Russian princess.) 

 l^ 1. P. toment6sa (Thunb.) Steud. (P. imperialis Sieb. & Zucc.) — Escaped 

 from cultivation and established from N. Y. southw. (Introd. from Japan.) 



9. MfMULUS L. Monkey Flowee 



Calyx prismatic, 5-angled, 5-toothed, the uppermost tooth largest. Upper 

 lip of corolla erect or reflexed-spreading, 2-lobed ; lower spreading, 3-lobed. 

 Stigma 2-lobed ; lobes ovate. Seeds numerous. — Herbs, with opposite (rarely 

 whorled) leaves, and mostly handsome flowers. (Diminutive of mimiis, a 

 buffoon, from the grinning corolla.) 



* Corolla violet-purple (rarely white) ; erect glabrous perennials; leaves 

 feather-veined. 



1. M. ringens L. Stem square, 1 m. or less high ; leaves oblong or lanceolate, 

 pointed, clasping by a heart-shaped base, sen-ate ; peduncles longer than the 

 flower ; calyx-teeth taper-pointed, nearly equal ; corolla personate, 2-4 cm. 

 long. — Wet places, N. B. to Man., and southw. June-Sept. 



2. M. aljltus Ait. Stem winged at the angles ; leaves oblong-ovate, tapering 

 into a petiole ; peduncles shorter than the very short-toothed calyx ; otherwise 

 like the preceding. — Wet places, Ct. to s. Out., Kan., and southw. 



* * Corolla yellow. 



1- Leaves several-nerved and veiny, the upper sessile or daspiiKj ; calyx oblique, 

 the uppermost tooth longest. 



3. M. glabratus IIBK., var. Jam^sii (T. & G.) Gray. Diffusely spreading, 

 smonfh or smoothish ; stems creeping at base ; stem-leaves roundish or kidney- 



