SCROPHULARIACBAE (FIGWORT FAINULY) 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. CHELONE [Tourn.] L. Turtlehead. Snakehead 



Calyx of 5 distinct imbricated sepals. The mouth of the 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 sessile in spikes or clusters, and 

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

 reXdbvv, a tortoise, the corolla resembling in shape the head of a reptile.) 



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

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

 witli sharp appressed teeth, narrowed at base usually into a very short petiole ; 

 bracts not ciliate ; corolla white, m' 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, 0.5-2 dm. long, sometimes laciniately serrate, more 

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

 corolla deep and bright rose-coZor. — Rich damp woods, etc., s. 111. to Va. 

 and Fla. 



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

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

 Va. southw. 



8. PAUL6wNIA Sieb. & Zucc. 



Calyx 5-cleft. Corolla-tube enlarged upward, the 5 unequal lobes spreading. 

 Stamens 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.) 



1. P. TOMENT6SA (Thuub.) Stcud. (P. imperialis Sieb. & Zucc.) —Escaped 

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



9. MIMULUS L. Monkey Flower 



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 mimus, 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, serrate ; peduncles longer than the 

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

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



2. M. alatus 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 yelloxc. 



^ Leaves several-nerved and veiny, the upper sessile or clasping ; calyx oblique, 



the uppermost tooth longest. 



3. M. glabratus HBK., var. Jamesii (T. & G.) Gray. Diffusely spreading, 

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



