242 American Midland Naturalist Monograph No. 2 



2. Corolla campanulate; style straight; capsule globose, opening by basal 



pores; roadsides and waste places, escaped from cult.; introd. from Eur. 



June-Sept C. rapunculoides L. 



1. Flowers in loose panicles, or solitary; corolla campanulate. 



3. Corolla 5-12 mm. long; leaves all linear or narrowly lanceolate; plants 



of wet ground. 

 4. Leaves linear; corolla blue, 8-12 mm. long; marshy ground, wet mead- 

 ows, and lake shores, not common; n. 111.; Lake Co., Gleason & 



Shobe in 1906. July-Aug C. uliginosa Rydb. 



4. Leaves lanceolate; corolla white, 5-8 mm. long; wet meadows, local, 



chiefly in the n. half of the state. June-July C. aparinoides Pursh 



3. Corolla 12-20 mm. long; basal leaves ovate or cordate; plants of sandy 

 or rocky places; n. 111., not common. June-Aug. [C. rotundifolia of 

 auth., not L.} C. intercedens Witasek 



2. Specularia Fab. — Venus' Looking-glass 

 S. perfoliata (L.) A. DC. Dry sandy soil, common. May-June. 



151. LoBELIACEAE Dum. — Lobelia Family 



1. Lobelia L. — Lobelia 



1. Corolla red (rarely pink or white), 3-4 cm. long; wet ground, not uncom- 

 mon. July-Oct. Cardinal-flower L. cardmalis L. 



1. Corolla blue or whitish. 

 2. Corolla 1-2.5 cm. long. 



3. Corolla 2-2.5 cm. long; anthers glabrous at the tip; wet ground through- 

 out 111. Aug.-Oct L. siphilitica L. 



3. Corolla 1-1.5 cm. long; anthers pubescent at the tip; wet ground, s. 111. 



Aug.-Oct L. puberula Mich.x. 



2. Corolla 6-10 mm. long. 



4. Leaves linear; wet meadows, local. July-Sept L. k<ilmii L. 



4. Leaves oblanceolate to ovate. 



5. Stem densely long-pubescent; capsule wholly inferior, inflated; open 



woods, locally throughout III. June-Oct L. inflata L. 



5. Stem glabrous or nearly so 



6. Sepals distinctly auricled at the base; dry soil, locally throughout 



111. June-Aug L. leptostachys A. DC. 



6. Sepals not auricled; dry sandy soil, common. July-Aug 



L. spicata Lam. 



152. CoMPOSiTAE Adans. — Composite Family 

 {CarJuaccac Ncclc; Cichoriaccac Reichenb.; Amhrosiaceae Reichenb.) 



1. Heads composed of ray- and disk-flowers, or of disk-flowers only; juice not 

 milky (e.xcept in Ccica'tcr) Series I. Tuhuliflorac, p. 243 



1. Heads composed wholly of perfect flowers with ligulate corollas; herbs usual- 

 ly with milky juice; leaves alternate or sometimes all basal 



Series II. Ligidiflorae, p. 246 



