SCROPHULARIACE.E. (FIGWORT FAMILY.) 381 



2. O. parvifl6ra, Dougl. Small; lower leaves ovate or rounded, the 

 upper oblong-lanceolate, mostly entire ; ivhorls 2 - ^-flowered ; flowers short- 

 peduncled ; the small (blue) corolla scarcely exceeding the calyx. Shore of 

 L. Superior, N. Mich., and westward. 



6. CHE LONE, Tourn. TURTLE-HEAD. SNAKE-HEAD. 



Calyx of 5 distinct imbricated sepals. Corolla inflated-tubular, with the 

 mouth a little open ; upper lip broad and arched, keeled in the middle, notched 

 at the apex ; the lower woolly-bearded in the throat, 3-lobed at the apex, the 

 middle lobe smallest. Stamens 4, with woolly filaments and very woolly 

 heart-shaped anthers, and a fifth sterile filament smaller than the others. 

 Seeds many, wing-margined. Smooth perennials, with upright branching 

 stems, opposite 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 xeAwv?;, a tortoise, the corolla re- 

 sembling in shape the head of a reptile.) 



1. C. glabra, L. A foot or two (or even 6-7) high; leaves narrowly to 

 rather broadly lanceolate (4-5' long, 4-12" wide), gradually acuminate, ser- 

 rate with sharp appressed teetb, narrowed at base usually into a very short 

 petiole ; bracts not ciliate ; corolla white, or barely tinyed with rose. Wet 

 places, Xewf. to Minn., south to Fla, and Tex. 



2. C. obliqua, L. Less strict or with spreading branches, 1 -2 high; 

 leaves broadly lanceolate to oblong (2-5' long), sometimes laciniately serrate, 

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

 ciliolate ; corolla deep and bright rose-color. S. 111. to Va. and Fla. 



7. PENTSTEMON, Mitchell. BEARD-TONGUE. 



Calyx 5-parted. Corolla tubular and more or less inflated, or bell-shaped, 

 either decidedly or slightly 2-lipped ; the upper lip 2-lobed, and the lower 

 3-cleft. Stamens 4, declined at the base, ascending above, and a fifth sterile 

 filament usually as long as the others, either naked or bearded. Seeds numer- 

 ous, wingless Perennials, branched from the base, simple above, with op- 

 posite leaves, the upper sessile and mostly clasping. Flowers mostly showy, 

 thyrsoid or racemose-panicled. (Name from irevre, Jive, and a-rrmtav, stamen; 

 the fifth stamen being present and conspicuous, although sterile.) 



* Viscid or glandular above, more or less pubescent or glabrous below; leaves 



often toothed or denticulate. 



-t- Thyrse somewhat open ; leaves ovate-lanceolate to linear ; corolla 9- 12" long, 

 the lower lip usually bearded within. 



1. P. pub6scens, Solander. Stem 1-2 high, viscid-pubescent (at least 

 the inflorescence) ; leaves oblong to lanceolate (2-4' long), the lowest and radi- 

 cal ovate or oblong, usually denticulate; thyrse narrow; corolla dull violet or 

 purple (or partly whitish), very moderately dilated, the throat nearly closed by 

 a villous-bearded pa/ate; sterile filament densely bearded. Dry or rocky 

 grounds, S. Maine (Miss Furbish) to Minn., south to Fla. and Tex. 



2. P. laevigatUS, Solander. Stem 2-4 high, mostly glabrous except the 

 inflorescence ; leaves firmer, somewhat gloisy, the cuuline ocate- or oblong- 



