8CROPHULARIACEAE (FIG WORT 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. 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 

 xe\tainj, a tortoise, the corolla resembling in shape the head of a reptile.) 



1. C. glabra L. (BALMONY.) Stem 0.6-2 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 south w. July-Sept. 



2. C. obliqua L. Less strict or with spreading branches, 6-8 dm. high ; leaves 

 brnmlly lanceolate to oblony, 0.6-2 dm. long, sometimes laciniately serrate, more 

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

 corolla deep and bright rose-color. 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 6 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 Pavlowna, a Russian princess.) 



1. P. TOMENT6SA (Thunb.) Steud. (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, 6-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. 



\. 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. Wet 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. Ont., Kan., and^southw. 



* * Corolla yellow. 



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

 the uppermost tooth longest. 



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

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



