GENUS 3 



BELLFLOWER FAMILY. 



299 



3. JASIONE L. Sp. PI. 928. 1753. 



Herbs, the flowers in terminal heads subtended by a many-leaved involucre. Calyx-tube 

 campanulate, adnate to the ovary, the limb 5-divided. Corolla at first tubular, splitting later 

 to the base into 5 linear or linear-oblanceolate segments. Filaments subulate. Anthers united 

 at the base, free above. Ovary inferior, 2-celled; stigma club-shaped. Capsule 2-celled, 

 dehiscent by two terminal pores. [Greek name of some 

 medicinal plant.] 



Five species of central Europe and the Mediterranean Re- 

 gion, the following typical. 



i. Jasione montana L. Sheep's-bit. Fig. 4027. 



Jasione montana L. Sp. PI. 928. 1753. 



Annual or biennial, with several stems from a simple 

 root; stems 6'-i2' high, branched above, leafy below, de- 

 cumbent, erect or ascending, the branches spreading. 

 Leaves linear, rough-hairy, sessile; flowers in long-pedun- 

 cled hemispherical heads ; corolla blue, seldom white or 

 pink. 



In waste places, Massachusetts to southern New Yotk. Ad- 

 ventive from Europe. June-Sept. 



Family 43. LOBELIACEAE Dumort. Comm. 

 Bot. 57. 1822. 

 LOBELIA FAMILY. 



Herbs, or in tropical regions rarely shrubs or trees, often with milky sap which 

 contains a narcotic-acid poison, with alternate, exstipulate, simple, entire, toothed 

 or pinnately parted leaves and solitary, spicate, racemose or paniculate flowers. 

 Calyx-tube adnate to the ovary, its limb 5-lobed or 5-parted, the lobes equal or 

 unequal. Corolla gamopetalous, irregular, often bilabiate, its tube open on one 

 side nearly or quite to the base, its limb 5-lobed ; stamens 5, inserted with the corolla ; 

 filaments sometimes cohering into a tube ; anthers united. Ovary 2 5-celled ; style 

 single ; stigma fringed ; ovules numerous, sessile, horizontal, anatropous. Fruit 

 a i-5-celled capsule, or a berry. Seeds numerous, with a smooth or furrowed 

 testa. Endosperm fleshy. 



About 20 genera and 600 species, of wide geographical distribution. 



i. LOBELIA L. Sp. PI. 929. 1753. 



Herbs (some tropical species shrubs), with alternate or basal leaves and racemose spicate 

 or paniculate, often leafy bracted, red, yellow, blue or white flowers. Calyx-tube turbinate, 

 hemispheric or ovoid, adnate to the ovary. Corolla-tube straight, oblique or incurved, divided 

 to the base on one side, 2-lipped in our species, the lobe on each side of the cleft erect or 

 recurved, turned away from the other three which are somewhat united, the sinuses inclining 

 to extend to the base of the corolla at maturity so as to divide it into 5 petals. Stamens free 

 from the corolla-tube, monadelphous, at least above, two or all the 5 anthers with a tuft of 

 hairs at the tips, three of them usually larger than the other two, all united into a tube or 

 ring around the style. Ovary 2-celled, the 2 placentae many-ovuled ; stigma 2-lobed or 2-cleft. 

 Capsule loculicidally 2-valved. [Named after Matthias de L'Obel, 1538-1616, a Flemish 

 botanist.] 



About 250 species, of wide geographic distribution. Besides the following, some 16 others 

 occur in the southern and western United States. Type species : Lobelia Dortmanna L. 



* Aquatic; stem simple, nearly naked; flowers light blue. 



Leaves terete, hollow, obtuse, tufted at the base. i. L. Dortmanna. 



Leaves flat, linear-oblong or spatulate, entire or glandular-denticulate. 2. L. paludosa. 



** Terrestrial plants of wet or dry soil; stems leafy. 



i. Corolla-tube s"-i2 long. 



Flowers bright scarlet (rarely white) ; corolla-tube io"-i2" long. 

 Flowers blue, white, or blue and white ; corolla-tube .s"-7" long. 

 Leaves ovate, lanceolate, or the lower ones obovate. 

 Leaves glabrous or sparingly pubescent. 



Calyx-lobes hirsute ; sinuses with large deflexed auricles. 

 Calyx-lobes glabrous or glandular, usually without auricles. 

 Leaves ovate to ovate-lanceolate, spreading. 

 Leaves linear to narrowly lanceolate, erect. 

 Leaves densely puberulent ; calyx hirsute ; auricles small. 

 Leaves elongated-linear, strongly glandular-denticulate. 



3. L. cardinalis. 



4. L. syphilitica. 



5. L. amoena. 



6. L. elongata. 



7. L. puberula. 



8. L. glandiiosa^ 



