884 FLOXA. 



tube entire, or deeply cleft on one side, its limb 5-lobed, regular, or more 

 or less 2-lipped, or corolla rarely divided into separate petals. Stamens 

 5, alternate with the corolla-lobes, inserted with the corolla ; filaments 

 separate or connate; anthers 2-celled, introrse, separate, or united into 

 a ring or tube. Ovary 2~5-celled (rarely 6-io-celled), with the placentae 

 projecting from the axis, or i-celled with two parietal placentae ; style 

 simple ; stigma mostly 2-5-lobed, pilose by a tuft or ring of hairs, or 

 glabrous; ovules anatropous. Fruit a capsule or berry. Seeds numer- 

 ous, small; embryo minute, straight; endosperm fleshy. About 6c 

 genera and 1500 species, of wide distribution. 



Corolla regular, campanulate or rotate ; anthers separate. 

 Capsule opening by lateral pores or valves. 



Corolla campanulate, rarely rotate; flowers all complete. i. Campanula., 



Corolla rotate ; earlier flowers cleistogamous. 2. Specularia. 



Capsule opening by terminal pores or valves. 3. Jasione. 



Corolla irregular ; anthers connate around the style. 4. Lobelia. 



i. CAMPANULA L. 



Perennial or annual herbs, with alternate or basal leaves. Flowers regular, 

 complete, blue, violet, or white. Calyx-tube hemispheric, turbinate, obovoid, or 

 prismatic, adnate to the ovary, the limb deeply 5-lobed or 5-parted (rarely 3-4- 

 parted). Corolla campanulate or rotate, 5-lobed or 5-parted. Stamens 5, free 

 from the corolla; filaments usually dilated at the base. Ovary inferior, 3~5-celled; 

 stigma 3~5-lobed. Capsule wholly or partly inferior, crowned by the persistent 

 calyx-lobes, opening on the sides, either near the top, middle or bottom by 3-5 

 small valves or perforations, or tending to be indehiscent in some species. [Dimin- 

 utive of the Latin campana. a bell.] About 250 species, natives of the northern 

 hemisphere. Besides the following, some 12 others occur in southern and western 

 N. Am. 



* Corolla campanulate; flowers solitary, racemose, glomerate, or panicled. 

 Flower solitary at the end of the stem; arctic and alpine plants. 



Corolla 8-12 mm. long; capsule-openings near the summit. i. C. uniflora. 

 Corolla 12-25 mm. long; capsule-openings near the base. 2. C. rotttndifolia. 



Flowers racemose, glomerate, or paniculate. 

 Corolla 14-30 mm. long. 



Stem leaves linear, the basal orbicular, mostly cordate. 2. C. rotundifolia. 

 Leaves all ovate to lanceolate; plants pubescent or scabrous. 



Flowers pedicelled in i-sided racemes. 3. C. rapunculoides. 



Flowers sessile in terminal and axillary clusters. 4. C. glomerata. 



Corolla 4-12 mm. long. 



Plant rough; style not exserted. 



Flowers white, sometimes tinged with blue, 5-8 mm. long; leaves mostly 



linear-lanceolate, crenulate. 5. C. aparinotdes. 



Flowers blue, 10-12 mm. long ; leaves linear, denticulate with minute 



callous teeth. 6. C. uliginosa. 



Plant smooth, glabrous, slightly viscid; style long-exserted. 



7. C. divaricata. 

 ** Corolla rotate; flowers spicate. 8. C. Americana. 



1. Campanula uniflora L. ARCTIC HAREBELL OR BELLFLOWER. (I. F. 

 f. 3490.) Perennial, glabrous or nearly so; stem simple, i-flowered, 3-15 cm. high. 

 Leaves linear or linear-oblong, acute, sessile, thickish, entire or sparingly den- 

 tate, 18-35 cm - l n g> or tne l wer an( l basal ones spatulate, obtuse and narrowed 

 into petioles; flower erect; calyx-tube turbinate, glabrous or pubescent, shorter 

 than or equalling the lobes; corolla campanulate, 8-12 mm. long, blue; capsulr 

 cylindric or club-shaped, about 12 mm. long, erect, opening by valves near the 

 summit. Lab. and Arctic Am. to Alaska, south in the Rocky Mountains to Colo. 

 Also in northern Europe and Asia. Summer. 



2. Campanula rotundif Ai& L. HAREBELL. BLUE BELLS OF SCOTLAND. 

 (I. F. f. 3491.) Perennial by slender rootstocks, glabrous or nearly so; stems erect or 

 diffuse, often several from the same root, 1.5-9 dm. high. Basal leaves nearly 

 orbicular or broadly ovate, usually cordate, slender petioled, 6-25 mm. wide, d.en- 



