896 Lobeliaceae Lobelia 



8649. SPECULARIA [Heist.] Fabricius 



Leaves rounded or ovate, clasping by the cordate base; capsules ellipsoid, short, 

 straight, 4-6 mm long 1. S. perfoliata. 



Leaves lanceolate or narrowly lanceolate, sessile; capsules cylindric, about 1 mm in 

 diameter, 8-15 mm long. (See excluded species no. 604, p. 1094) S. leptocarpa. 



1. Specularia perfoliata (L.) A. DC. Venus Looking-glass. Map 1970. 

 This species prefers dry, sandy soil and is found in dry, open woods and 

 fallow fields and along roadsides. It is rare in northern Indiana, becoming 

 infrequent to frequent in the southern part of the state. 



Maine to B. C, southw. to Fla., La., Mex., Ariz., and Oreg. 



276A. LOBELIACEAE Dumort. Lobelia Family 

 8694. LOBELIA [Plumier] L. Lobelia 



[McVaugh. Studies in the taxonomy and distribution of the eastern 

 North American species of Lobelia. Rhodora 38 : 241-263. 1 pi. ; 276-298 ; 

 305-329; 346-362. 1936.] 



Corolla tube more than 6 mm long. 



Corolla 3-4 cm long; flowers red, rarely white; calyx lobes linear, straight, not 



auricled at the base 1. L. Cardinalis. 



Corolla less than 3 cm long; flowers blue, rarely white. 



Calyx lobes broadly linear, more or less folded together, making them crooked, 

 with a broad, recurving auricle on each side at the base; stem glabrous or 

 slightly pubescent on the lower half; leaves long-tapered at the base, glabrous 

 or sparingly pubescent above and beneath; flowers usually about 2 cm long. 



2. L. siphilitica. 



Calyx lobes linear, flat, straight, without auricles at the base; stem densely 

 pubescent all over; leaves very short-tapered at the base, densely pubescent 



above and beneath; flowers mostly 1-1.5 cm long 3. L. pubenda. 



Corolla tube less than 6 mm long. 



Leaves linear, mostly 1-2 mm wide; plants of a wet, marly habitat 4. L. Kalmii. 



Leaves more than 3 mm wide; plants of a dry habitat, sometimes in a moist habitat 

 or in dried-up wet places. 

 Stem densely long-pubescent all over, usually branched; median leaves mostly 

 ovate-lanceolate, repand-dentate or denticulate; pods inflated, usually about 



5 mm wide, without ridges 5. L. inflata. 



Stem glabrous, pubescent in lines or short-pubescent below; leaves mostly entire 

 or with a few denticulations, rarely the whole blade coarsely denticulate; pods 

 not inflated or rarely so, mostly less than 3 mm wide, more or less ribbed. 

 6. L. spicata. 



1. Lobelia Cardinalis L. Cardinal-flower. Map 1971. Infrequent 

 throughout the state in low ground in woods, along ditches, and on the 

 borders of lakes and ponds. 



Southern N. B. to Ont. and Kans., southw. to Fla. and Tex. 



la. Lobelia Cardinalis f. alba (A. A. Eaton) St. John. This is a white- 

 flowered form of the species which has been reported from the dune area 

 by Peattie. 



2. Lobelia siphilitica L. Large Blue Lobelia. Map 1972. Rather fre- 

 quent in low ground throughout the state in woodland, along roadsides and 

 ditches, and about lakes. 



Maine, Ont. to S. Dak. and Mo., southw. to N. C. and Ala. 



